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获得20.1k好评的回答 @Tim Ernst（专业回答）： First lets talk about fasting. Many people think that training fasted is when your stomach is empty but it’s much more than that. When you consume food they’re broken down into different kinds of molecules. These molecules are released into the blood stream and causes insulin to spike as well. Insulin’s job is to shuttle theses molecules into the cell. Insulin levels can be elevated for several hours depending on how much food you consume. 首先我们来谈一下禁食，许多人认为在胃里空空如也的情况下，锻炼减脂的效果会增强，但事实上并非如此。当身体消化食物的时候，食物会被分解成不同的分子。这些分子会释放到血液当中，导致胰岛素的上升。胰岛素的主要作用就是把这些分子传输到细胞当中，它的上升水平取决于你摄入多少食物。 | 
