Amino acids (AAs) are available as single AAs or in AA combinations. They also come as part of multivitamins, proteins, and food supplements. The forms include tablets, fluids, and powders.
By eating enough protein in your diet, you get all of the amino acids you need.
Supplementation could be required with severe illnesses, such as chronic liver, heart or renal disease, or with long-term use of parenteral nutrition. This is because in some circumstances the body can't make enough of it.
Babies who aren't breastfed may need taurine supplements. This is because their ability to make it isn't fully developed. Many infant formulas and parenteral nutrition solutions have taurine added to them.