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Guess again By Colette Bouchez WebMD Feature Reviewed by Louise Chang, MD If you ask folks what food group they should avoid, most will probably answer "fats." While it's true that, in large amounts, some types of fat are bad for your health (not to mention your waistline), there are some we simply can't live without. Among them are the omega-3 fatty acids, found in foods including walnuts, some fruits and vegetables, and coldwater fish such as herring, mackerel, sturgeon, and anchovies. "It not only plays a vital role in the health of the membrane of every cell in our body, it also helps protect us from a number of key health threats," says Laurie Tansman, MS, RD, CDN, a nutritionist at Mount Sinai Medical Center in New York. The benefits of omega-3s include reducing the risk of heart disease and stroke while helping to reduce symptoms of hypertension, depression, attention deficit hyperactivity disorder (ADHD), joint pain and other rheumatoid problems, as well as certain skin ailments. Some research has even shown that omega-3s can boost the immune system and help protect us from an array of illnesses including Alzheimer's disease. Just how do omega-3s perform so many health "miracles" in people? One way, experts say, is by encouraging the production of body chemicals that help control inflammation -- in the joints, the bloodstream, and the tissues. But even as important is their ability to reduce the negative impact of yet another essential type of fatty acid known as omega-6s. Found in foods such as eggs, poultry, cereals, vegetable oils, baked goods, and margarine, omega-6s are also considered essential. They support skin health, lower cholesterol, and help make our blood "sticky" so it is able to clot. But when omega-6s aren't balanced with sufficient amounts of omega-3s, problems can ensue. "When blood is too 'sticky,' it promotes clot formation, and this can increase the risk of heart attack and stroke," says nutritionist Lona Sandon, RD, a spokeswoman for the American Dietetic Association. But once you add omega-3s to the mix, the risk of heart problems goes down, she tells WebMD. The latest research shows that the most promising health effects of essential fatty acids are achieved through a proper balance between omega-3s and omega-6s. The ratio to shoot for, experts say, is roughly 4 parts omega-3s to 1 part omega-6s. Most of us, they say, come up dangerously short. "The typical American diet has a ratio of around 20 to 1 -- 20 omega-6's to 1 omega-3 -- and that spells trouble," says Sandon, an assistant professor of nutrition at University of Texas Southwestern Medical Center in Dallas. While reducing your intake of omega-6s can help, getting more omega-3s from food is an even better way to go. How to Get What You Need Omega-3 fatty acids are not one single nutrient, but a collection of several, including eicosapentaenic acid (EPA) and docosahexanoic acid (DHA). Both are found in greatest abundance in coldwater fish -- and that, say experts, is one reason so many of us are deficient. 1 | 2 | 3 | 4 Next Page > Next Article: Eating Right in an Imperfect WorldTool: How Healthy Is Your Diet?Related Guide: Nutrition 101: How to Eat Healthy5 Surprisingly Healthy FoodsWatch Out for Hidden SaltEggs: Are They Good for You or Not?Healthy Breakfasts on the GoBreakfast: The Most Important Meal of the DayBrown-Bag Lunches That Make the GradeVideo: Healthy Snacking Secrets7 Tips for Eating While You WorkRelated Guide: Healthy Eating Through the DayHow to be Healthy While Eating Out10 Tips for the Single Grocery ShopperRelated Guide: 10 Tips for Healthy Grocery ShoppingStocking a Healthy KitchenRelated Guide: 12 Ways to Eat Better for LessPreparing Quick and Healthy MealsWhip up a Quick, Healthy DinnerChoosing Frozen DinnersEat More Fruits and VeggiesSneak 'Superfoods' Into Your DietGood Fat: Omega-3 Fatty AcidsEat Smart for a Healthier BrainReap the Benefits of Whole GrainsEasy Ways to Get More Fiber10 Amazing Disease-Fighting FoodsThe Wonders of WaterEnergy for SaleWhat's the Buzz About Energy Drinks?Superwaters -- Healthy or Hype?Fortified and Functional Foods Health & Diet Guide 1 Just the Facts 2 Eating Healthy 3 Losing Weight 4 Vitamins & More 5 Of Special Interest 6 Help & Support #url_reference {display: none}; 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