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Supplements can help your bones, your muscles, and many other parts of your body. What about your heart? Research shows that some of them may help lower cholesterol, improve blood pressure, and other things that put you at risk for heart disease. It's unclear, though, if they help prevent heart attacks, strokes, and other problems.

Here are six nutrients that can be a good addition to your heart-healthy lifestyle.

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Fiber and Sterols for Your Heart

Fiber. Found naturally in fruits, grains, vegetables, and legumes, fiber cuts down the amount of cholesterol your body soaks up from food. Try to get at least 25 to 30 grams of it every day. It’s best to get your daily dose from your diet, but supplements are another option. There's good evidence that blond psyllium husk -- common in fiber supplements -- can lower “bad” LDL cholesterol. It can also raise the “good” kind, HDL.

Sterols and stanols. Find these in foods like nuts and grains, or you can buy them as supplements. They reduce the amount of cholesterol that your body absorbs from food. They're also added to many foods, such as some margarines, orange juice, and yogurts. Experts recommend 2 grams a day to help lower LDL cholesterol.

Other Supplements That May Offer Benefits

Coenzyme Q10 ( CoQ10 ). Your body naturally makes small amounts of this enzyme, also known as ubiquinone and ubiquinol. As a supplement, CoQ10 may help lower blood pressure, either on its own or along with medications. Other studies have found that adding it to heart failure drugs may help people feel better day to day.

CoQ10 pills are also popular as a treatment for the side effects of cholesterol-lowering drugs called statins. Why? These meds can sometimes lower the amount of CoQ10 the body makes on its own. Some doctors suggest adding a CoQ10 supplement to make up for the loss, hoping it will relieve problems like muscle pain and weakness. But study results have been mixed.

Fish oil . Full of omega-3 fatty acids, it can slash levels of triglycerides -- an unhealthy fat in your blood -- by up to 30%. It may also improve blood pressure. But it’s not clear if non-prescription fish oil supplements lower your risk of heart attack and stroke. Your best bet may be to eat fish with omega-3 fatty acids. The American Heart Association recommends that all adults eat at least two 3.5-ounce servings of fish a week.

Garlic. Not only does it make just about anything taste delicious, it could also lower cholesterol and slightly lower blood pressure. It may slow the buildup of plaque in your arteries, lowering your risk of blood clots. Research shows that both garlic in food and in supplements may help.

Green tea . Research shows that both the extract and the drink may lower LDL cholesterol and triglycerides, and raise HDL levels.

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