探尋人工甜味劑的健康奧秘

　　8月11日CNN聽力：探訪人工甜味劑的康健秘密

　　So,while they are not natural,artificial sweetenersare chemical compounds.

　　They are sweet.

　　They can be used in everything from gum toyoghurt.

　　Cupcakes to diet sodas.

　　And they have no calories in many cases unlike actualsugar,which has about 16 calories in a teaspoon.

　　But does that mean the artificial stuff is healthier and that it will help you lose weight?

　　Not necessarily.

　　Let's talk about diet sodas.

　　You see them everywhere,from people who look like they might be trying to lose weight topeople who clearly just love the drinks.

　　But are they actually living up to their diet name?

　　What is exactly in diet soda?

　　What does it do to our bodies?

　　Does it actually help us lose weight?

　　There are five different kinds of FDA approved artificial sweeteners and when you pick up a dietsoda,the sweetener you most likely to aspartame,which is composite of two amino acids-aspartic acid and phenylalanine.

　　Got it?

　　Now,one of the more popular rumors about the sweeteners and diet soda is that it can causecancer.

　　And while there have been a few studies that linked different sweeteners to cancer inrats,scientists don't think there's the same risk in humans,but this doesn't mean that this fakesugars don't do some funky stuff to our bodies.

　　Sweeteners such as aspartame actually trigger our body's taste receptions and trick them intobelieving it's sugar.

　　So,according to researchers at Purdue University,artificial sweeteners and diet sodas fulfill yourbody sensory craving for sweets,and as advertised,they don't deliver the calories.

　　點擊下一頁檢察譯文