Other name(s):

aminosuccinic acid

General information

Aspartic acid is a nonessential amino acid. This means it can be made from other substances in your body. It helps make other amino acids and some nucleotides. Aspartic acid also plays a role in energy production in the body. It also helps send chemical signals through the nervous system.

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 are available as single amino acids or in amino-acid 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 the amino acids you need.

There are no conditions that increase the need for aspartic acid.

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.