Nutritional supplement

熱量赤字決定你能不能瘦，但卡路里的來源——三大巨量營養素的比例、微量營養素的攝取、以及食物的飽足感與產熱效應——才決定你瘦掉的是脂肪還是肌肉，以及體態是否真正好看。

The core of intermittent fasting is a calorie deficit, not the fasting itself. Fitness enthusiasts should pay special attention to protein intake, the safety of fasted training, and warnings for special populations. Beginners are advised to gradually progress starting with the 12/12 intermittent fasting method.