They’re vital for functions throughout your body, including protein synthesis, tissue repair, and nutrient absorption. Some may also help prevent muscle loss, support recovery after surgery, and improve mood, sleep, and athletic performance.

Side Effects:
Three of the most commonly mentioned risks of long-term amino acid supplementation are nausea, headache, and pain.

Precautions:
Amino acid supplements can impact your blood sugar levels. This means that you should avoid them before and after surgery.