Archive for the ‘meal’ Category

All The Info On The New Cholesterol Findings

Thursday, October 9th, 2008

Cholesterol, although a fat, is an essential nutrient for the body. It is made in the liver. The liver produces cholesterol in the necessary quantities for health.

Food that helps to lower cholesterol levels

Other foods that can lower the cholesterol levels are fruits and vegetables. This type of food doesn’t contain that much cholesterol so whatever you eat, you won’t be adding to its levels.

Another great thing about fruit and vegetables is the fact that they are great sources of fibres that the body also needs to combat LDL cholesterol. Berries as well as fruit that is citrus and carrots are just some of the fruit you can count on for combating LDL.

Soya is another food that can dramatically reduce the levels of cholesterol in the body. Fibre rich food, soya as well as almonds and plant sterols also reduce cholesterol levels by as much as 20 percent, according to a recent study. Eating oats, olive oil and barley are also great ways to lower LDL.

To lower LDL, it’s important to consciously avoid foods that are deep-fried. If you have to eat fried foods, make sure that the oil that you use is vegetable oil.

Never use butter as this is rich in saturated fats. Instead, use margarine as a substitute. Steam, braise, boil or bake your food these are both tastier and healthier.

It’s not just the food

There are many factors that contribute to the rise in the levels of cholesterol. In addition to one’s eating lifestyle, there is the age, gender, genes, family history and of course the amount of physical activity that’s done. Exercise is certainly very important in keeping LDL cholesterol at bay. Not only that, it strengthens the body’s resistance as well as improves blood circulation.

One reason for the high levels of cholesterol, could be due to the wide variety of fast food being offered these days at the grocery store and in restaurants. But is there one food product that can be called the best to lower cholesterol? Probably not as a well balanced diet comes from all of the food groups.

Lowering cholesterol quick tips

* Instead of drinking full cream milk on cornflakes or whole grain, try using non or low fat milk instead. The taste is almost the same, but is much healthier.
* Instead of ordering a steak change your menu to lean meat instead, but be careful as even lean meat has fat, although not as much and tastes just as good as the big steak.
* The healthiest thing to have either for lunch and/or dinner is food that comes from the ocean. Fish or shellfish is known to contain concentrates of Omega 3, which is very effective in lowering cholesterol.
* Eating a candy bar or a slice of cake is tempting, but they are rich in fat – although there are low fat and cholesterol free chocolate cake recipe. Try nuts or fruits instead, which are rich in fibre as well as contain vitamins and minerals that are lots healthier than the candy or cake.
* In each meal, don’t forget to add fruit where possible. A salad works well or grated carrots as a side dish. There should be a balance whenever eating meat or fish.
* Chicken is not so good if it’s fried, steamed is far better and a healthier way of cooking it – but remember to remove the skin.

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How to Fight Cholesterol

Monday, August 4th, 2008

Dr. Helen is having some cholesterol hell. She wants to keep her LDL cholesterol low and HDL cholesterol high, and having suffered a heart attack in the past this is of the utmost importance. The product she was using was Benecol Smart Chews, which, judging by the nutrition facts, don’t seem to have anything particularly wrong with them. It uses plant sterols, proven to lower LDL cholesterol in the human body. Yet her LDL cholesterol and triglycerides level went up. What gives?

Whatever the reason, cholesterol is something you should try to keep in check whether young or old. Sometimes, triglycerides and LDL cholesterol come from crazy places you wouldn’t even think of. Below are my tips for getting your cholesterol under control through the use of a good diet, exercise, and supplements.

Avoid Processed Foods and Artificial Sweeteners

This is so hard to do nowadays because almost everything is processed and almost everything has corn syrup in it (even the chews!). Processed foods like corn syrup — and even white bread and white pasta — are turned into glucose (sugar) rapidly by the body. Excess sugar that your body doesn’t use fast enough will be turned into fat. In this case, most often these foods will be turned into triglycerides, a kind of fat that is easy to burn off but is detrimental to your health.

Buy truly whole grain products whenever possible to avoid this affect on the body.

Limit Your Alcohol Consumption

Certain alcohol beverages, such as beer and especially wine, have been shown to have incredible health benefits in moderation. A couple glasses of wine a day is no problem. However, when you drink alcohol, the liver prioritizes the metabolism of alcohol over other substances such as glucose. This results in even more glucose than usual being converted into triglycerides. This will happen especially when drinking cocktails that involve fruit juices and syrups. This is especially a warning to all the college students out there!

Eat Your Fiber

This can’t be stressed more. Fruits, vegetables, and legumes have so many different qualities that are amazing that they shouldn’t be passed up on. In terms of helping with your cholesterol, there are some benefits that your greens can give you that few foods can. The soluble fiber in fruits and legumes, as well as oatmeal, form gelatinous substances in the intestine and bind with cholesterol so that it is removed rather than absorbed. Eating just 15 grams of soluble fiber a day can reduce your LDL cholesterol by 10-15% over time.

Exercise and You Won’t Be Sorry

A regular regimen of exercise is extremely helpful in burning off triglycerides and reducing LDL cholesterol while boosting HDL cholesterol. There is no doubt that cardiovascular exercise as well as weight training reduces inflammation, excess fat, and LDL cholesterol. Truly, any amount of exercise is beneficial but those who do it regularly will see the most benefit. You need to remember though that the heart is also a muscle, and while it may seem strange, a whey protein shake after a jog is just what it needs to build itself stronger than ever before.

Get Acquainted with the Good Fats, Throw Out the Bad

A supplement with plant sterols alone is not going to do the trick — essential fatty acids have the most control over your cholesterol levels. Before I say anything, I just wanted everyone to know that I am extremely biased against low/no fat diets. I think they are ridiculous and led to a generation of people coming down with cardiovascular diseases. That’s because fat in your diet is so absolutely necessary that you can’t afford to cut it out. In terms of cholesterol, fat can save your life if you eat the right kinds. So what are they?

Monounsaturated fats are what you want the most of in terms of lowering LDL cholesterol. When eating a salad or some whole wheat pasta, feel free to drizzle a good helping of extra virgin olive oil. Salad dressings based on olive oil are also good. Seriously, olive oil is amazing and shouldn’t be passed up on.

You should also make sure to get a large amount of your essential oils from food sources. Fish have a lot of good fats in them, such as the polyunsaturated omega-3 and omega-6. Avocado is great. Some coconut oil, a medium-chain saturated fat, has been shown to be beneficial as well. You should also eat a decent amount of nuts, as they contain a great amount of oils that are beneficial to the body.

So what are the bad? Any kind of processed or refined oil. That giant, cheap gallon of vegetable oil should be thrown out immediately. There is no better way to raise your triglyceride and LDL cholesterol count than to cook everything in vegetable oil. When oils are heated they undergo a chemical transformation that makes them much less healthy for you. Basically, anything that says processed, hydrogenated, or partially hydrogenated should be thrown out especially if found in packaged food. These are generally trans fats — the biggest culprit in terms of bad cholesterol.

You will also want to trim as much fat off of red meat as possible as, unlike coconut oil which is a medium-chain saturated fat, these are long-chain saturated fats and do have a connection to higher LDL cholesterol. Replace some of your red meat meals with fowl and fish instead.

Some Supplements Do Wonders

There is a reason that bodybuilders and nutritionists are absolutely obsessed with certain supplement products. Their benefits are proven, visible, and effective in everyone.

Flax seeds and flax seed oil are one of nature’s best sources of omega-3 and omega-6 fatty acids. Taken as a supplement or whole, these little guys do wonders for your cholesterol and heart. Cod liver oil is a good alternative, containing these fats along with vitamins A and D naturally.

Like I said, bodybuilders and nutritionists take these because they work. AI put a bit of flaxseed oil in every protein shake I make. While I’m sure the Benecol Smart Chews has had some kind of effect given the plant sterols, I don’t believe that it can have nearly the effect as supplementing with essential fatty acids.

Conclusion

There are many lifestyle changes that you can make in order to boost your cardiovascular health and tackle cholesterol problems. As a natural substance that your body needs, dietary cholesterol itself has very little impact on the cholesterol in your body. When you eat more cholesterol, your body simply makes less. The terms HDL and LDL actually refer to lipoproteins that surround the cholesterol the production of which has much more to do with dietary fat than dietary cholesterol. A good exercise regimen, but most of all a healthy diet full of unprocessed foods and essential unsaturated fatty acids, are essential to raising your HDL and LDL levels, thus preventing the kind of arterial plaque that can lead to so many cardiovascular diseases.

These tips worked for me, and I hope that by following my suggestions you can successfully achieve your goals. Good luck Dr. Helen and everyone else!

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Lipitor Exercise

Saturday, July 19th, 2008

Exercise and Heart Health

Lack of exercise may contribute to being overweight. This is a risk factor you can manage with your doctor. And your heart needs you to get active—especially if you’ve been diagnosed with high cholesterol. Exercise can help you reach (or stay at) your appropriate weight. It can also strengthen your body to help you fight off illness and may keep you in a healthier, more optimistic state of mind.

Like diet, exercise is something where a few small changes can make a big difference. Here are a few ideas to get you moving:

Walk for 30 minutes a day. Increasing the number of steps you take each day can help your heart. Take your dog to the park, take the stairs instead of the elevator, park in the farthest spot from the store.

Try a new activity. Go ride a bike. Or start swimming. Take a yoga class. Join a hiking club. Learn tai chi. A new activity can reduce your weight and help raise your spirits.

LIPITOR is a prescription drug. It is used in patients with multiple risk factors for heart disease such as family history, high blood pressure, age, low HDL (“good” cholesterol) or smoking to reduce the risk of heart attack and stroke. When diet and exercise alone are not enough, LIPITOR is used along with a low-fat diet and exercise to lower cholesterol.

LIPITOR is also used in patients with type 2 diabetes and at least one other risk factor for heart disease such as high blood pressure, smoking or complications of diabetes, including eye disease and protein in urine, to reduce the risk of heart attack and stroke.

LIPITOR is not for everyone. It is not for those with liver problems. And it is not for women who are nursing, pregnant or may become pregnant.

If you take LIPITOR, tell your doctor if you feel any new muscle pain or weakness. This could be a sign of rare but serious muscle side effects. Tell your doctor about all medications you take. This may help avoid serious drug interactions. Your doctor should do blood tests to check your liver function before and during treatment and may adjust your dose. The most common side effects are gas, constipation, stomach pain and heartburn. They tend to be mild and often go away.

When diet and exercise alone are not enough, adding LIPITOR can help. LIPITOR is one of many cholesterol-lowering treatment options that you and your doctor can consider.

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Cholesterol Diet Fat Low Reduce

Friday, July 4th, 2008

Cholesterol is mainly affected by hereditary factors, weight control, smoking and lack of exercise. And although cholesterol is not primarily affected by the foods we eat, in some cases dietary cholesterol does play a part. See our guide below on how to get a handle on your cholesterol by limiting certain foods and eating more of others.

A low-fat, low-cholesterol diet is desired to keep your total fat consumption–saturated, polyunsaturated and monounsaturated–to fewer than 30 percent of your daily intake of calories. Remember to keep your cholesterol intake to fewer than 300 milligrams per day. Saturated fats contained in butter, whole milk, hydrogenated oils, chocolate shortening, etc. should comprise no more than one third of your total fat consumption. To reduce your total fat and cholesterol intake, limit your consumption of meats such as beef, pork, liver and tongue (always trim away excess fat). In addition, avoid cheese, fried foods, nuts and cream, and try to curb your intake of eggs to no more than four per week. Try to eat meatless meals several times a week, use skim milk and include fish in your diet. Eat a wide variety of vegetables, pasta, grains and fruit. Another good tip is to look at the package label of the foods you buy, and restrict your choices to foods containing 3 grams of fat or less per serving.

There is evidence that water-soluble fibers can aid in lowering cholesterol; these foods include the fiber in oat or corn bran, beans and legumes, pectin found in apples and other fruits, and guar that is used as a thickener. Although highly touted by the media and health food stores, the phospholipid Lecithin has not been confirmed as a reducer of blood cholesterol levels.

If you are overweight, trying to lose weight and including aerobic exercise in your routine can help raise those desirable high density lipoproteins levels. Diet and exercise alone can decrease cholesterol levels by up to 15 percent.

Guidelines for lowering your high blood cholesterol with dietary therapies.
* Eat less than 30% of your total daily calories from fat.
* Eat less than 300 mg of cholesterol each day.
* Eat 50-60% of your daily calories from carbohydrates.
* Adjust your caloric intake to achieve or maintain a desirable weight.

Foods to limit:

* Fat. Cutting back on fried foods, puddings, biscuits, crisps, pies and chips can give you a double benefit: lower cholesterol and lower body weight. Instead, choose reduced fat products such as low-fat soured cream and cream cheese, fat-free yoghurt, skimmed milk and granola.
* Sweets or puddings labelled ‘low-fat’. A low-fat brownie is still a brownie, and it still has loads of calories and fat. These types of reduced-fat foods shouldn’t be part of your daily diet.
* Red meat. You don’t have to cut meat out of your diet, just reduce your portion sizes to about three ounces, or the size of your palm. More than that is over the top in calories, fat and cholesterol.
* Some dairy products. Watch out for your intake of foods high in cholesterol like cheese, sour cream and butter.
* Trans fatty acids.You won’t always find these trans fats listed on food labels, but they are mostly found in foods containing hydrogenated oils, meaning they start as liquid and are chemically changed to solids at room temperature. The hydrogenation process is used in making stick margarine and solid vegetable shortening, and hydrogenated fats are used in commercial baked goods such as puddings, biscuits and other snacks. Look for the word ‘hydrogenated’ on the label and try to limit these foods.

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Consequences of High Triglycerides

Thursday, July 3rd, 2008

Triglycerides are another type of fat that is associated with adverse health consequences. Many patients with high cholesterol also have high triglycerides. It is therefore difficult to see if the triglycerides create their own effect, or if all of the increase in problems with arteriosclerosis are simply due to the fact that high triglycerides go along with the high cholesterol. Cholesterol and triglycerides are two forms of lipid, or fat. Both cholesterol and triglycerides are necessary for life itself. Cholesterol is necessary, among other things, for building cell membranes and for making several essential hormones. Triglycerides, which are chains of high-energy fatty acids, provide much of the energy needed for cells to function.

Triglycerides are the chemical form in which most fat exists in food as well as in the body. They’re also present in blood plasma and, in association with cholesterol, form the plasma lipids. Triglycerides in plasma are derived from fats eaten in foods or made in the body from other energy sources like carbohydrates. Calories ingested in a meal and not used immediately by tissues are converted to triglycerides and transported to fat cells to be stored. Hormones regulate the release of triglycerides from fat tissue so they meet the body’s needs for energy between meals.

Normal fasting levels are generally less than 200 mg/dl. Medications are rarely indicated for levels under 400 mg/dl. High triglycerides can cause other important health problems. Although it is usually caused by other health problems, pancreatitis is a serious inflammatory condition of the pancreas which can be caused by marked elevations of triglycerides (usually over 1000 mg/dl).

Triglyceride levels are strongly influenced by diet. While cholesterol levels remain pretty constant over a month or so, and aren’t terribly effected by meals, triglycerides respond quickly to a meal, particularly one with a lot of fat, sugar, or alcohol. While a non-fasting cholesterol level still gives reasonable information, triglyceride levels need to be determined after not eating for 8-12 hours to be accurate (or at least reproducible). Furthermore, patients with high triglycerides need to be particularly careful about their diets.

While we generally don’t worry as much about high triglyceride levels as we do about cholesterol. Patients who have arteriosclerosis with high triglycerides as their only obvious abnormality of fat metabolism may need to be approached differently, however. And, it is important for other causes of high triglycerides need to be looked for. It is not always only due to diet or the patient’s genes. It may be associated with other health conditions.

The treatment for high triglycerides (hypertriglyceridemia) is similar to that for high cholesterol. Recommendations are found on the section on treatment.

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Cholesterol Diet Good Lowering

Tuesday, June 24th, 2008

How to Lower Your Cholesterol?

Cholesterol Lowering Drugs and Cholesterol Lowering Diet

Whatever the reasons may be for your high blood cholesterol level – diet, heredity, or both – the treatment your doctor will prescribe first is a diet. If your blood cholesterol level has not decreased sufficiently after carefully following the diet for 6 months, your doctor may consider adding cholesterol-lowering medication to your dietary treatment. Remember, diet is a very essential step in the treatment of high blood cholesterol.

Cholesterol-lowering medications are more effective when combined with diet. Thus they are meant to supplement, not replace, a low-saturated fat, low-cholesterol diet.

Summary of Diet Guidelines for Lowering High Blood Cholesterol Levels

* Eat less high-fat food (especially those high in saturated fat)
* Replace part of the saturated fat in your diet with unsaturated fat
* Eat less high-cholesterol food
* Choose foods high in complex carbohydrates (starch and fiber)
* Reduce your weight, if you are overweight

Eat Less High-fat Food

Dietary Fat

There are two major types of dietary fat – saturated and unsaturated. Unsaturated fats are further classified as either polyunsaturated or monounsaturated fats. Together, saturated and unsaturated fats equal total fat. All foods containing fat contain a mixture of these fats.

Reduce Total Fat Intake

One of the goals in your blood cholesterol-lowering diet is to eat less total fat, because this is an effective way to eat less saturated fat. Because fat is the richest source of calories, this will also help reduce the number of calories you eat every day. If you are overweight, weight loss is another important step in lowering blood cholesterol levels (as discussed later in this brochure). If you are not overweight, be sure to replace the fat calories by eating more food high in complex carbohydrates.

Remember: When you decrease the amount of total fat you eat, you are likely to reduce the saturated fat and calories in your diet.

Saturated Fat

Saturated fat raises your blood cholesterol level more than anything else in your diet. The best way to reduce your blood cholesterol level is to reduce the amount of saturated fat you eat.

Animal Fats

Animal products as a group are a major source of saturated fat in the average American diet. Butter, cheese, whole milk, ice cream, and cream all contain high amounts of saturated fat. Saturated fat is also concentrated in the fat that surrounds meat and in the white streaks of fat in the muscle of meat (marbling). Poultry, fish, and shellfish also contain saturated fat, although generally less than meat.

Hydrogenated Fat – Known As Trans Fatty Acids or Trans-Fats

Trans fats are created during the food manufacturing process when cheap vegetable oils undergo a process called “hydrogenation” – they have hydrogen added to them to make them solid and less likely to become rancid. Unfortunately, trans fats are even worse for our heart than saturated fat, as they encourage atherosclerosis (narrowing of the arteries).

Vegetable Fats

A few vegetable fats – coconut oil, cocoa butter (found in chocolate), palm kernel oil, and palm oil – are high in saturated fat. These vegetable fats are found in many commercially baked goods, such as cookies and crackers, and in nondairy substitutes, such as whipped toppings, coffee creamers, cake mixes, and even frozen dinners. They also can be found in some snack foods like chips, candy bars, and buttered popcorn. Because these vegetable fats are not visible in these foods (unlike the fat in meats) it is important for you to read food labels. The label may tell you how much saturated fat a food contains, which will help you choose foods lowest in saturated fats.

Remember: Saturated fats are found primarily in animal products. But a few vegetable fats and many commercially processed foods also contain saturated fat. Read labels carefully. Choose foods wisely.

Substitute Unsaturated Fat for Saturated Fat

Unsaturated fat actually helps to lower cholesterol levels when it is substituted for saturated fat. Therefore, health professionals recommend that, when you do eat fats, unsaturated fats (polyunsaturated and monounsaturated fats) be substituted for part of the saturated fat whenever possible.

Polyunsaturated fats are found primarily in safflower, corn, soybean, cottonseed, sesame, and sunflower oils, which are common cooking oils. Polyunsaturated fats are also contained in most salad dressings. But be cautious. Commercially prepared salad dressings also may be high in saturated fats, and therefore careful inspection of labels is important. The word “hydrogenated” on a label means that some of the polyunsaturated fat has been converted to saturated fat.

Another type of polyunsaturated fat is found in the oils of fish and shellfish (often referred to as fish oils, or omega-3 fatty acids). This type of polyunsaturated fat is found in greatest amounts in such fatty fish as herring, salmon, and mackerel. There is little evidence that omega-3 fatty acids are useful for reducing LDL-cholesterol levels. However, fish is a good food choice for this diet play anyway because it is low in saturated fat. The use of fish oil supplements are not recommended for the treatment of high blood cholesterol because it is not known whether long-term ingestion of omega-3 fatty acids will lead to undesirable side effects.

Olive and canola oil (rapeseed oil) are examples of oils that are high in monounsaturated fats. Like other vegetable oils, these oils are used in cooking as well as in salads. Recently, research has shown that substituting monounsaturated fat, like substituting polyunsaturated fat, for saturated fat reduces blood cholesterol levels.

Remember: Unsaturated fats when substituted for saturated fats help lower blood cholesterol levels.

Eat Less High-Cholesterol Food

Dietary cholesterol is a waxy, fat-like substance found in foods that come from animals. Although it is not the same as saturated fat, dietary cholesterol also can raise your blood cholesterol level. Therefore, it is important to eat less food that is high in cholesterol. While cholesterol is needed for normal body function, your liver makes enough for your body’s needs so that you don’t need to eat any cholesterol at all.

Dietary Cholesterol in Food

Cholesterol is found in eggs, dairy products, meat, poultry, fish, and shellfish. Egg yolks and organ meats (liver, kidney, sweetbread, brain) are particularly rich sources of cholesterol. High-fat dairy products, meat, and poultry all have similar amounts of cholesterol. Fish generally has less cholesterol, but shellfish varies in cholesterol content. Foods of plant origin, like fruits, vegetables, grains, cereals, nuts, and seeds, contain no cholesterol.

Since cholesterol is not a fat, you can find it in both high-fat and low-fat animal foods. In other words, even if a food is low in fat, it may be high in cholesterol. For instance, organ meats, like liver, are low in fat, but are high in cholesterol.

Because many foods such as dairy products and some meats are high in both saturated fat and cholesterol, it is important to limit the amount of these high-fat foods that you eat, choosing lean meats and low-fat dairy products whenever possible.

Remember: Organ meats and egg yolks are high in cholesterol. High-fat dairy products, meat, and poultry have similar amounts of cholesterol. Some fish has less. Foods of plant origin like fruits, vegetables, vegetable oils, grains, cereals, nuts, and seeds contain no cholesterol.

Substitute Low GI Carbohydrates for Saturated Fat

Breads, pasta, rice, cereals, dried peas and beans, fruits, and vegetables are good sources of complex carbohydrates (starch and fiber). Low-GI varieties are excellent substitutes for foods that are high in saturated fat and cholesterol. The type of fiber found in foods such as oat and barley bran, some fruits like apples and oranges, and in some dried beans may even help reduce blood cholesterol levels.

Contrary to popular belief, high-carbohydrate foods (like pasta, rice, potatoes) are lower in calories than foods high in fat. In addition, they are good sources of vitamins and minerals. What adds calories to these foods is the addition of butter, rich sauces, whole milk, or cream, which are high in fat, especially saturated fat. It is important not to add these to the high-carbohydrate foods you are substituting for foods high in fat.

Remember: Foods that are high in complex carbohydrates, if eaten plain, are low in saturated fat and cholesterol as well as being good sources of vitamins, minerals, and fiber.

Maintain a Desirable Weight

People who are overweight frequently have higher blood cholesterol levels than people of desirable weight.

You can reduce your weight by eating fewer calories and by increasing your physical activity on a regular basis. By reducing the amount of fat in your diet, you will be cutting down on the richest source of calories. Substituting foods that are high in complex carbohydrates for high-fat foods will also help you lose weight, because many high-carbohydrate foods contain little fat and thus fewer calories.

Fat Contains Twice the Calories of Carbs and Protein

Fat has more than twice the calories as the same amount of protein or carbohydrate. Protein and carbohydrate both have about 4 calories in each gram, but all fat-saturated, polyunsaturated or monounsaturated fat – has 9 calories in each gram. Thus, foods that are high in fat are high in calories. And all calories count. So, to maintain a desirable weight, it is important to eat no more calories than your body needs.

Remember: To achieve or maintain a desirable weight, your caloric intake must not exceed the number of calories your body burns.

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Cholesterol What Is It and Are You At Risk?

Sunday, June 22nd, 2008

Cholesterol is a fatty lipid, steroid and an alcohol found in the body tissues and blood plasma of vertebrates. It is the essential part of the outer membranes of human body cells, and it circulates in the blood.

Cholesterol in the human body comes from two major sources. About three-quarters of the body’s total cholesterol is produced within the body, while only one-quarter comes from cholesterol in food.

Higher concentrations of cholesterol are present in body tissues which have more densely packed membranes – i.e. the liver, spinal cord, brain, atheroma, adrenal glands and reproductive organs.

The liver is the most important site of cholesterol biosynthesis. It is secreted from the liver in the form of an acidic secretion known as ‘bile’.

Diets rich in animal fats, meat, poultry, fish, oils, egg yolks and dairy products are a rich source of dietary cholesterol. Organ meats, such as liver and kidney, are extremely rich in cholesterol content, but foods of plant origin contain no cholesterol.

High cholesterol levels in the bloodstream can influence the pathogenesis of certain conditions. Recent studies have revealed that the abundance of protein complexes called lipoproteins, are responsible for the cholesterol build-up in the blood vessels.

Cholesterol gets attached to these lipoproteins. The high-density lipoprotein (HDL) carries cholesterol out of the bloodstream for excretion, while the low-density lipoprotein (LDL) carries it back into the system for use by various body cells.

LDL cholesterol is called bad cholesterol, because elevated levels of it are associated with an increased risk of coronary heart disease. LDL deposits cholesterol on the artery walls which leads to the formation of a hard, thick substance called cholesterol plaque. Over time, cholesterol plaque causes thickening of the artery walls and narrowing of the arteries, a process called atherosclerosis.

The levels of both HDL cholesterol and LDL cholesterol may also determine risk for heart disease; however current medical opinion is that the ratio of HDL cholesterol to LDL cholesterol is much more important than the level of cholesterol.

Methods to control your cholesterol levels:

Lower your consumption of foods containing saturated fats – fried fast foods, butter, cream, cheese, and fat on meat – to help reduce cholesterol. Add more plant foods to your diet – vegetable oils, nuts, legumes, breads, cereal grains, fruits and vegetables. A low cholesterol diet, combined with regular exercise is the best way to lower cholesterol levels.

Medications can also help lower cholesterol levels. HMG-CoA reductase inhibitors, ‘Statins’, such as lovastatin and atorvastatin (Lipitor) are the most effective and widely used medications to lower LDL cholesterol. Other medications include nicotinic acid, fibrates such as gemfibrozil, resins such as cholestyramine, and ezetimibe. These medications should be taken after consulting the experts.

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Cholesterol Diet High Cholesterol

Saturday, June 21st, 2008

High cholesterol affects about 17% of Americans ages 20 and older, contributing to atherosclerotic heart disease, which is the single leading cause of death and disability in the developed world. This medical dictionary covers the terms used in the report, What to do about High Cholesterol, and includes details on how to lower and watch your cholesterol through tests and diets.

* antioxidant: A substance that inhibits oxidation.

* apolipoproteins: Proteins that combine with cholesterol and triglyceride to form lipoproteins.

* atherosclerosis: Development of cholesterol-rich plaque on the inner walls of arteries, which can eventually obstruct blood flow.

* atherosclerotic plaque: A cholesterol-rich deposit on an artery wall.

* biological variability: Fluctuations that occur naturally over time in the levels of a substance such as cholesterol in a person’s body.

* cholesterol: A fatlike substance that is produced by the liver and found in all food from animal sources; an essential component of body cells and a precursor of bile acids and certain hormones.

* chylomicron: A large, extremely low-density lipoprotein that transports triglyceride from the intestine to fat tissue in the body.

* combined hyperlipidemia: A condition in which LDL and triglyceride levels are very high.

* familial combined hyperlipidemia: An inherited disorder in which the liver overproduces VLDL, causing high levels of cholesterol or triglycerides, or both.

* familial hypercholesterolemia: An inherited disorder in which the liver cannot properly remove LDL particles from the blood, causing a very high cholesterol level.

* fasting lipid profile: A laboratory test to determine the relative levels of HDL, LDL, and total cholesterol in the blood. Also referred to as a lipoprotein analysis, full lipid profile, or cholesterol profile.

* fatty acids:
The primary building blocks of lipids.

* foam cells: Lipid-laden cells, named for their foamy appearance under the microscope, which contribute to the formation of atherosclerotic plaque.

* high-density lipoprotein (HDL): A lipoprotein that protects the arteries by transporting cholesterol from body cells to the liver for elimination.

* hydrogenation: The addition of hydrogen to a compound, particularly to solidify unsaturated oils.

* lipids: Fats, oils, and waxes that serve as building blocks for cells or as energy sources for the body.

* lipoproteins: Protein-covered fat particles that enable cholesterol to move easily through the blood.

* low-density lipoprotein (LDL): A lipoprotein that transports cholesterol from the liver to the rest of the body, which can cause the buildup of plaque in the arteries.

* monounsaturated fats: Fatty acids; abundant in olive, peanut, sesame, and canola oils.

* oxidation: A process in which oxygen combines with a substance, altering its structure and changing or destroying its normal function.

* platelets: Minute, colorless disks in the blood that are instrumental in clotting.

* polyunsaturated fats: Fatty acids that are abundant in soybean, corn, cottonseed, safflower, and sunflower oils.

* saturated fats: Fatty acids that are abundant in red meat, lard, butter, cheese, and some vegetable oils, in which each molecule carries the maximum number of hydrogen atoms.

* trans fats: Fatty acids (such as those found in solid margarine) that have been reshaped by hydrogenation; also called trans fatty acids.

* triglyceride: The primary type of fat in the body and in the diet, formed from three fatty-acid molecules and one glycerol molecule.

* unsaturated fats: Fatty acids in which some of the hydrogen atoms in each molecule have been replaced by double bonds; includes monounsaturated and polyunsaturated fats.

* very-low-density lipoprotein (VLDL): A lipoprotein that transports triglyceride manufactured in the liver to fat tissue in the body; eventually becomes low-density lipoprotein (LDL) after the triglyceride has been removed.

In foods, cholesterol is found in eggs, dairy products, meat, and poultry. Egg yolks and organ meats (liver, kidney, sweetbread, and brain) are high in cholesterol. Fish generally contains less cholesterol than other meats, but some shellfish are high in cholesterol.

Foods of plant origin (vegetables, fruits, grains, cereals, nuts, and seeds) contain no cholesterol.

Fat content is not a good measure of cholesterol content. For example, liver and other organ meats are low in fat, but very high in cholesterol.

Therapeutic Lifestyle Changes (TLC) is a set of things you can do to help lower your LDL cholesterol. The main parts of TLC are:

* The TLC Diet. This is a low-saturated-fat, low-cholesterol eating plan that calls for less than 7% of calories from saturated fat and less than 200 mg of dietary cholesterol per day. The TLC diet recommends only enough calories to maintain a desirable weight and avoid weight gain. If your LDL is not lowered enough by reducing your saturated fat and cholesterol intakes, the amount of soluble fiber in your diet can be increased. Certain food products that contain plant stanols or plant sterols (for example, cholesterol-lowering margarines) can also be added to the TLC diet to boost its LDL-lowering power.
* Weight Management. Losing weight if you are overweight can help lower LDL and is especially important for those with a cluster of risk factors that includes high triglyceride and/or low HDL levels and being overweight with a large waist measurement (more than 40 inches for men and more than 35 inches for women).
* Physical Activity. Regular physical activity (30 minutes on most, if not all, days) is recommended for everyone. It can help raise HDL and lower LDL and is especially important for those with high triglyceride and/or low HDL levels who are overweight with a large waist measurement.

Foods low in saturated fat include fat-free or 1percent dairy products, lean meats, fish, skinless poultry, whole grain foods, and fruits and vegetables. Look for soft margarines (liquid or tub varieties) that are low in saturated fat and contain little or no trans fat (another type of dietary fat that can raise your cholesterol level). Limit foods high in cholesterol such as liver and other organ meats, egg yolks, and full-fat dairy products.

Good sources of soluble fiber include oats, certain fruits (such as oranges and pears) and vegetables (such as brussels sprouts and carrots), and dried peas and beans.

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Diabetics at Increased Risk for Heart Disease

Monday, June 16th, 2008

Nearly all people with diabetes have abnormal cholesterol levels, which contribute to their increased risk for heart attack and stroke.

With diabetes, heart attacks occur earlier in life and often result in death. To lower your risk, you need to take action today and lower your cholesterol levels.

What is cholesterol?

Cholesterol is a waxy, fat-like substance that is in all the body’s cells, including the blood. It is critical in building cells and in creating certain hormones.

Your body makes all of the cholesterol it needs. Cholesterol is also found in some food you eat. Cholesterol can’t dissolve in the blood. It needs to be carried from cell to cell by carriers called lipoproteins. There are two types of lipoproteins.

Low-density lipoprotein (LDL) is known as “bad” cholesterol. High-density lipoprotein (HDL) is known as “good” cholesterol.

These two, along with triglycerides, make up your total cholesterol count, which can be determined through a blood test ordered by your doctor.

How does cholesterol work?

LDL cholesterol circulates in the blood and slowly builds up in the inner walls of the arteries. High levels of LDL can stick to the lining of the arteries (blood vessels), leading to atherosclerosis or hardening of the arteries. Atherosclerosis “plaque” is a thick, hard deposit that can narrow the arteries and make them less flexible. If the arteries that supply the heart and brain with blood become blocked with plaque a heart attack or stroke can occur.

HDL cholesterol also circulates in the blood, but its job is to protect against heart attack.

Medical experts think that HDL helps the body by carrying LDL away from the arteries and back to the liver, where it’s passed from the body. Some experts also believe that HDL removes excess cholesterol from arterial plaque, therefore slowing its buildup.

Desirable lab values for LDL is less than 100mg/dl and HDL should be more than 50mg/dl.

What are triglycerides?

Triglyceride is a form of fat in the body. It provides much of the energy needed for cells to function. Calories eaten in a meal and not used immediately by your body are converted to triglycerides and transported to fat cells to be stored. High levels of triglyceride can be due to obesity, inactivity, cigarette smoking, excess alcohol consumption and a diet very high in carbohydrates (60 percent of total calories or more).

Desirable lab values for triglycerides should be lower than 150mg/dl.

Where do they come from?

Dietary cholesterol and triglycerides mainly come from eating animal products and saturated fat.

Foods such as egg yolks, meat, poultry, shellfish and whole and reduced-fat milk and dairy products contain cholesterol and triglycerides. Trans fats can also raise blood cholesterol.

Lowering LDL; raising HDL

According to the American Heart Association, the recommendation is to limit your average daily cholesterol to less than 300 milligrams a day.

If you have heart disease, they recommend limiting the daily intake to less than 200 milligrams. To lower your daily cholesterol intake, you must read the nutritional facts on the food items. By eating lean meat, fish, poultry and fat-free and low-fat dairy products, you can lower your risk of heart disease. Foods from plants (fruits, vegetables, grains, nuts and seeds) don’t contain cholesterol.

If your HDL levels are low, you are at risk for heart disease.

To raise your HDL levels, you should stay physically active, maintain a healthy weight, avoid smoking, cut trans fats and increase monounsaturated fats in your meal plan.

Monounsaturated fats include canola oil, avocado oil or olive oil. You can also add soluble fiber such as oats, fruits, vegetables and legumes.

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Triglycerides Linked to Coronary Disease Risk

Sunday, June 15th, 2008

A new study showing that high levels of triglycerides were strong predictors of cardiac trouble strengthens the case for including measurement of the blood fats in prevention programs.

“Triglycerides traditionally have been viewed as second-class citizens,” said Dr. Michael Miller, director of preventive cardiology at the University of Maryland Medical Center and lead author of the report in the Feb. 12 issue of the Journal of the American College of Cardiology.. “LDL cholesterol has always taken center stage. We know that LDL is intimately involved in bringing cholesterol to scavenger cells, which deposit them to form plaques in the arteries. This study shows that triglycerides in and of themselves are also lipids to blame.”

The original study was designed to test the effectiveness of two LDL-lowering statins, Pravachol and Lipitor, in reducing recurring coronary disease after a heart attack. The new study went over the data on the 4,162 participants in the trial, looking at the association between triglyceride levels and the incidence of heart problems and death.

“The patients who had heart attacks came back after 30 days,” said Miller. “We measured LDL levels and triglyceride levels and followed them over the next two years, evaluating for the occurrence of new events and death. If a patient had triglyceride levels below 150 [milligrams per deciliter], there was a 27 percent lower risk of having a new event over time. After multiple adjustments, for such things as age, diabetes, high blood pressure and obesity, the risk reduction was 20 percent.”

Unlike LDL cholesterol, for which there is a recommended blood level, 70 or below, there is no recommended blood triglyceride level, Miller said, but 150 milligrams per deciliter or below is “considered as desirable.”

When the participants were divided into four groups on the basis of both LDL and triglyceride levels, those in the group with under 150 for triglycerides and under 70 for LDL did the best, with a 28 percent lower risk than those in the group with the highest readings for both LDL and triglycerides, he said.

The results obviously need verification, Miller said. “At the present time, we don’t have a recommendation for triglyceride lowering, so the next logical step is a study to determine whether lowering triglycerides and LDL reduces risk more than lowering LDL alone,” he said. Two such studies are in progress, Miller noted.

Previous research has already pointed toward such a connection: A study that appeared in Neurology last December found a link between triglycerides and stroke risk, while research published in the Journal of the American Medical Association last July showed that when high triglyceride levels showed up in nonfasting cholesterol tests, there was an increased risk for a future heart attack.

Dr. Leslie Cho, an interventional cardiologist who is director of the Women’s Cardiovascular Center of the Cleveland Clinic, noted that the new report “is not a huge surprise.”

“The unique thing about this study is that even if you control bad LDL cholesterol to less than 70, you still need to look at triglycerides,” Cho said.

The problem with triglycerides is that “they are the most unstable fats in the body,” so that at least two readings are needed to get an accurate measure of blood levels, she explained.

Meanwhile, Miller said, “I am proactive about both LDL cholesterol and triglycerides.” Several measures can be taken to lower triglyceride levels — many of them already recommended on general principles for reduction of coronary risk.

One is to eat a Mediterranean diet, rich in fish. Omega-3 fatty acids can lower triglyceride levels, as can niacin, and exercise has a beneficial effect, Miller said. Statins also have some triglyceride-lowering effect, he noted.

“If you can effectively get both LDL cholesterol and triglycerides down, you are going to do better,” Miller said.

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