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southern new mexico surgery center
 
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    Children's Health

    Cystine

    Other name(s):

    di-[a-amino-propionic]-b-disulphide, cysteine

    Unsubstantiated claims

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

    Cystine may help speed recovery after surgery. It may also boost your immune system. It may also help treat lung diseases.

    Recommended intake

    Cystine is an amino acid that is found in digestive enzymes, in the cells of the immune system, in skeletal and connective tissues, skin, and hair. Hair and skin are 10% to 14% cystine. 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.

    Note that by eating enough complete and combined protein sources in your diet, you get all of the amino acids you need.

    There are no conditions that increase how much cystine you need.

    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 single amino acids for long periods of time.

    People who are pregnant or breastfeeding should not use cystine supplements.

    People with maple syrup urine disease (MSUD) or cystinuria shouldn’t use cystine supplements.

    Online Medical Reviewer: Bianca Garilli MD
    Online Medical Reviewer: Chris Southard RN
    Online Medical Reviewer: Jessica Gotwals RN BSN MPH
    Date Last Reviewed: 8/1/2023
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    Southern New Mexico
    Surgery Center

    2301 Indian Wells Rd. Suite B
    Alamogordo, NM 88310
    www.snmsc.org

    Phone: 575.437.0890
    Fax: 575.437.0905
    Email: info@snmsc.org

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