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spxysa041

金虫 (正式写手)

[交流] 【求助】请高手解释一下意思已有1人参与

The fats were incorporated into margarines, cookies, and muffins and fed to 15 hypercholesterolemic men and women (average age = 51 yr) for 5 wk each in random order. A low-fat diet (21% energy as fat) was fed for 2 wk as a baseline “run-in” treatment. The test diets contained 41–42% energy as fat. The fat intake provided by the test fats was ca. 25% energy

这里的41–42% energy 和 25% energy 分别是相对什么而言的?同一膳食为什么会出现不同的能量百分比?
谢谢

[ Last edited by spxysa041 on 2010-5-11 at 20:04 ]
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tomboy1120

金虫 (小有名气)

spxysa041(金币+5): 2010-05-13 08:16:52
个人理解应该是:41%是指测试饮食中所含有的脂肪量,而25%是指吸收的量
2楼2010-05-12 10:09:51
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