What happens if you have a protein deficiency? your body will start using your muscles and organs as a source of protein. you will go into temporary shock. your body will learn to not use proteins. your body will experience no changes at all.

Your body will start to use muscle and organs for protein, this is also true for lack of sugars. One can see in both instances that it is true, when noticing someone with malnutrition, arms and legs are very thin, but stomach is distended. Eventually you can wind up in shock (not temporary.