Fasting for a long time (in this case, 2 weeks) is something that our bodies are very capable of doing-in fact, this is the whole reason why we stored fat in the first place.

Let me answer your question first: suppose you eat 2500 calories a day-this is correct for a typical man (about 2000 calories for women). You store 3,500 calories per pound of body fat. Therefore, if you don't eat for a day, then men will burn about 2/3 pounds of fat (please note that this assumes that glycogen storage is exhausted, which may take three days).

Therefore, you can burn 2500 * 14 = 35000 calories in two weeks-that's 10 pound of body fat-that's the weight you want to lose-if you continue to eat about 2500 calories a day-it will remain the same.

Weighing scale will say that you have actually lost more weight, but the weight loss is temporary and will recover after you resume your normal diet. The extra weight loss will be attributed to the consumption of glycogen in muscles, which can't keep water-this will reduce your strength in strenuous exercise-but your strength will recover after fasting for a few days.

This will guide me forward-no, you won't lose muscle because of fasting. The reason is simple-the body stores fat, so it can be burned as fuel.

Imagine the situation of our ancestors. In good times, they will eat and drink enough, and when food is insufficient, they will add some fat. Do you think our race will survive-if we need food most-when food is scarce-we find that our muscles are wasted, but we are left with all these useless excess fats.

In fact, when food is scarce, we will become more alert because of the increase of adrenaline and cortisol (the way our bodies get us out of bed to eat), and our bodies will produce high levels of growth hormone to help protect our muscles from consumption.

We will experience muscle waste if:

We will reduce calories for a long time-which means that our bodies will only adapt to lower calorie intake and save energy.

We no longer use them to save energy.

They don't waste energy-not when there is fat!

But-because we are not used to fasting for a long time-or at least most people are not used to eating three meals a day or more-our bodies are not used to maintaining minerals/vitamins at present.

So I suggest you increase the fasting time around 1 month, starting from 16, 24, 32, 48 hours, and so on. Your body will soon get used to the way of actual design.