bulksupplements L-Alanine - Boost Muscle Growth What Is Ala Amino Acid? Ala amino acid is another term for L-alanine, which is a nonessential amino acid that the body produces naturally. "Ala" is the symbol for alanine. Ala amino acid can also be found in many foods, such as meat, beans, seafood, grains, etc. It has gained popularity as a pre-workout supplement. Ala Amino Acid Benefits* Ala amino acid is most commonly taken as a pre-workout supplement to aid muscle endurance and to help boost energy. In addition, Ala amino acid may help support the immune system and the prostate. It may also help with maintaining healthy glucose levels in already healthy individuals when taken in conjunction with a healthy diet and exercise.