Friday, May 30, 2008

TRANS FATTY ACIDS AND YOUR HEALTH

Trans fatty acids, or trans fats, are created when food manufacturers turn vegetable oil into solid fat, like shortening and hard margarine. This process increases the shelf life of foods, including the potato chips, cookies, and fried food that Americans consume every day. Trans fat behaves like saturated fat, clogging arteries and increasing LDL-C (bad cholesterol) levels. Trans fat may also reduce HDL (good cholesterol levels). Elevated LDL-C increases the risk of developing coronary heart disease. The health risks posed by this dangerous fat have prompted the FDA to require that U.S. food manufacturers list trans fat amounts on all nutritional labels by 2006.


Are All Fats the Same?

Simply put: No. Fat is a major source of energy for the body and aids in the absorption of vitamins A, D, E, and K and carotenoids. Both animal- and plant-derived food products contain fat, and when eaten in moderation, fat is important for proper growth, development, and maintenance of good health. As a food ingredient, fat provides taste, consistency, and stability and helps you feel full. In addition, parents should be aware that fats are an especially important source of calories and nutrients for infants and toddlers (up to 2 years of age), who have the highest energy needs per unit of body weight of any age group.

While unsaturated fats (monounsaturated and polyunsaturated) are beneficial when consumed in moderation, saturated and trans fats are not. Saturated fat and trans fat raise LDL cholesterol levels in the blood. Dietary cholesterol also contributes to heart disease. Therefore, it is advisable to choose foods low in saturated fat, trans fat, and cholesterol as part of a healthful diet.
What Can You Do About Saturated Fat, Trans Fat, and Cholesterol?

When comparing foods, look at the Nutrition Facts panel, and choose the food with the lower amounts of saturated fat, trans fat, and cholesterol. Health experts recommend that you keep your intake of saturated fat, trans fat, and cholesterol as low as possible while consuming a nutritionally adequate diet. However, these experts recognize that eliminating these three components entirely from your diet is not practical because they are unavoidable in ordinary diets.

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