Other name(s):

aminosuccinic acid

Unsubstantiated claims

There may be benefits that have not yet been proven through research.

Some athletes claim aspartic acid improves stamina. It may enhance your immune system. Aspartic acid may protect you from toxins and neural and brain disorders. It may help treat chronic fatigue.

Recommended intake

Amino acids (AAs) are available as single AAs or in AA combinations. They also come as part of multi-vitamins, 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.

There are no conditions that increase the need 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 lessen how well your metabolism works. It can make your kidneys work harder. In children, taking single amino acid supplements may cause growth problems.

You should not take high doses of single amino acids for long periods of time.

Women who are pregnant or breastfeeding should not use aspartic acid supplements.