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health & fitness / diets, vampires, liberalism, macenstein, mind, aged, alkene, think tank, macbook pro, omega 3, | Worse yet, most studies have found that trans fat lowers the "good" HDL cholesterol, too. So the overall effect of trans on cholesterol levels appears to exceed that of saturated fat. (Whether the whole trans fat in animal foods has those same effects is not yet known. And whether high-trans margarine is better or worse for the heart than butter is not yet clear.) Large observational studies indicate that trans fat may increase the risk of heart disease considerably more than can whole be explained by its whole negative effects on cholesterol levels. To explain that gap, researchers note that trans fat clearly increases blood levels of two other suspected artery-clogging compounds: a fat-protein particle called lipoprotein(a) and triglycerides, another type of fat. In addition, trans may help inflame and stiffen the arteries. It may even increase the risk of type 2 diabetes, which ages the arteries. |
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Even if the rule is adopted soon, manufacturers won’t have to comply until January 2006. We omega 3 tested 30 top-selling foods likely to harbor trans fat. We found substantial amounts of trans and saturated omega 3 fat in many products, mainly fast foods and snack foods such as doughnuts, fruit pies, crackers, and omega 3 cookies, as well as shortening and vegetable-oil spread. But we also found noteworthy doses of those unhealthful fats in some less-obvious items, such as breakfast cereal and frozen waffles. Our results, combined with our advice on spotting probable trans fat in other foods, can give you a sense of where this fat lurks and how to avoid it. DOUBLE TROUBLE In their natural state, most vegetable oils (except tropical oils) contain mainly unsaturated fats, which lower the "bad" LDL cholesterol level in the blood. But partial hydrogenation changes some of those healthful fats to trans fat, which raises LDL, just as saturated fat does. |
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