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  3. For more than a decade, dieticians and nutritionists harangued us to lower t

For more than a decade, dieticians and nutritionists harangued us to lower t

游客2023-08-02  26
问题     For more than a decade, dieticians and nutritionists harangued us to lower the amount of fat in our diet. As it hap pens, their message was only partly correct. Although all fats are high in calories, certain fats, like the omega-3 fatty acids commonly found in fish, are actually good for us, provided we consume them in moderation. Not only do omega-3s reduce the risk of clot formation in blood vessels, they also lower the amount of triglycerides, another fatty substance in the blood. The bottom line is that folks who eat 6 to 8 oz. of fatty fish a week experience significantly fewer heart attacks and strokes.
    Still on the consume-sparing lists are saturated fats, commonly found in red meats and whole-milk dairy products. Recent studies also suggest that another group fats, called trans-fatty acids, found in abundance in crackers and cookies prepared with hydrogenated oils, may be an even more dangerous promoter of high cholesterol than saturated fats.
    The most immediate benefit from adopting a healthy diet is that it can lower blood pressure. Even ff you don’t have hypertension, decreasing your blood pressure makes your blood vessel springier and can help stabilize potentially dangerous plaques in the arteries. Two major studies have shown that DASH(Dietary Approaches to Stopping Hypertension) diet—which emphasizes fruits and vegetables, promotes low-fat dairy and high-fiber grains, permits modest portions of lean meat and reduces sodium intake can lower blood pressure as effectively as taking a prescription anti-hypertension drug. Just as important, the foods are filling, taste good and aren’t that different from what most Americans are used to eating.
选项 A、To Eat Right
B、Go on Diet
C、Get Fit
D、Healthy Habits
答案 A
解析 文章大意题。文章全篇都在讲健康饮食对人体的好处。B的意思是节食减肥，C是去运动健美，D指健康的习惯，因而都不合适。
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