[求助]AA7的提纲，谢过先

rockwellhuang

People who use the artificial sweetener aspartame are better off consuming sugar, since aspartame can actually contribute to gain weight rather than weight loss.  For example, high levels of aspartame have been shown to trigger a craving for food by depleting the brain of a chemical that registers satiety, or the sense of being full. Furthermore, studies suggest that sugar, if consumed after at least 45 minutes of continuous exercise, actually enhance the body's ability to burn fat. Consequently, those who drink aspartame-sweened juice after exercise will also lose this calorie-burning benefit. Thus it appears that people consuming aspartame rather than sugar are unlikely to achieve their dietary goals.

snow_mountain

以下是引用rockwellhuang在2004-7-3 10:47:00的发言：
For example, high levels of aspartame have been shown to trigger a craving for food by depleting the brain of a chemical that registers satiety, or the sense of being full.

首先, high levels 是个弹性概念. 作者应该解释何谓high?  反驳: 如果一般都不会摄取到high 的量, 那么作者的第一个论据就不成立了.

Furthermore, studies suggest that sugar, if consumed after at least 45 minutes of continuous exercise, actually enhance the body's ability to burn fat. Consequently, those who drink aspartame-sweened juice after exercise will also lose this calorie-burning benefit.

作者没有指明代糖没有该功效.  反驳: 代糖有可能功效更佳.

Thus it appears that people consuming aspartame rather than sugar are unlikely to achieve their dietary goals.

不同的人有不同的dietary goals,  比如糖尿病患者. 他们就只能用代糖.  作者把dietary goal 和lose weight 混为一谭.

如果没有思路, 建议可以看看范文224. 找找线索.

rockwellhuang

Thanks a lot, bryony.