Please note that this section reports on claims that have not yet been substantiated
through scientific studies.
Some athletes claim aspartic acid improves stamina. It may also enhance your immune
system. Aspartic acid may also protect you from toxins and neural and brain disorders.
It may also help treat chronic fatigue.
Amino acids (AAs) are available as individual AAs or in AA combinations. They also
come as part of multi-vitamins, proteins, and food supplements. The forms include
tablets, fluids, and powders.
Note that by eating enough protein in your diet, you get all of the amino acids you
There are no conditions that increase the nutritional requirements for aspartic acid.
Aspartic acid is not considered an essential amino acid. This means it can be made
from other substances in your body.
Side effects, toxicity, and interactions
Using a single amino acid supplement may lead to negative nitrogen balance. This can
decrease how efficient your metabolism is. It can also make your kidneys work harder.
In children, taking single amino acid supplements may also cause growth problems.
You should not take high doses of individual amino acids for long periods of time.
Women who are pregnant or breastfeeding should not use aspartic acid supplements.