Collagen supplements are available in a variety of forms, including powders, pills, and fortified foods. They are often sold as “hydrolyzed collagen” or “collagen peptides,” both forms of collagen that have already been broken down and are therefore more readily absorbed by the body. There is some evidence to suggest that collagen supplements can improve skin elasticity and hydration, promote wound healing, and improve joint mobility and pain, and are generally deemed safe with no reported adverse health effects. However, the evidence that is available to support these claims is often unclear (for example, the exact dosage to experience benefits) or funded by related industries or authors with ties to those industries who may benefit from positive research outcomes, presenting a potential conflict of interest. Additionally, as with all other dietary supplements, collagen supplements are not assessed by the Food and Drug Administration (FDA) prior to being marketed; therefore, their efficacy and safety is not guaranteed.
Currently, there is not enough evidence to provide clear recommendations to support or advise against the use of collagen supplements. However, when searching for any supplement, including collagen, look for those with USP or NSF certifications on the label, which indicate that the product has been tested by a third party for purity, potency, and safety. Additionally, you should always consult a health care professional, such as your physician, prior to starting any supplement.
Finally, there are some ways to naturally protect your body’s natural collagen without taking supplements:
This blog was written by Lindsey Recker, MS, RD, NIFS Registered Dietitian. To learn more about the NIFS bloggers, click here.