The main supplements to prevent muscle loss are as follows: 1. 3. For some special patients, some hormones can be used appropriately, such as testosterone hormone or steroids. These drugs must be used under the strict guidance of a doctor because of their side effects.4. Ensure adequate nutrition, such as patients should eat foods rich in protein and vitamins, such as beef, mutton, fish, milk, eggs and a lot of fresh green vegetables, fruits and the like.