The Science of Fasting

Beast said

Are any of you doing extended fasts concerned with loss of lean muscle tissue? This is typically the tissue that's difficult to gain back, and I've heard/read that extended fasting can lead to this.

Click to expand...

When you read about the science of fasting, it makes sense.

Disease, atrophy from disuse, aging contributes to muscle loss. Only use [exercise] builds muscle tissue. Fuel [food] cannot build muscle.