It satisfies your sweet tooth. Your body doesn’t really need a cookie. It simply cravens something sweet and chewy in your mouth. Buy gum in family-sized 10-packs so you're always prepared.Try sugar-free hard candies,too,but only if you can he satisfied with a piece or two. If you need 50 pieces to satisfy your sweet tooth,you defeat the object of the exercise.

　　无糖口香糖能够满足你想吃甜的念头。你的身体并不是真正想要或需要一片饼干。那只是你的嘴巴想吃一些甜而耐嚼的东西罢了。买十包装的家庭装口香糖，你就可以有备无患了。也可以试试无糖的硬糖。但你得吃一两块就能心满意足才行。如果你需要吃五十块糖才能满足你想吃甜食的念头，那就违反了吃无糖糖果的目的了。

　　健身短语

　　sweet tooth 爱吃甜食的念头(常用于have a sweet tooth的词组中，例：He has a sweet tooth,他爱吃甜食。)