Do collagen supplements fulfill their promises?
Ask the doctor

The most abundant protein in the body, collagen supports our skin, hair, nails, bones, joints, and muscles. As we age, natural collagen production drops, leading to issues such as visible skin aging and joint discomfort. Certain foods, such as bone broth or the skin from chicken, fish, or pork can supply some collagen, but not much.
To continue reading this article, you must log in.
Subscribe to Harvard Health Online for immediate access to health news and information from Harvard Medical School.
- Research health conditions
- Check your symptoms
- Prepare for a doctor's visit or test
- Find the best treatments and procedures for you
- Explore options for better nutrition and exercise
I'd like to receive access to Harvard Health Online for only $4.99 a month.
Sign Me UpAlready a member? Login ».
About the Author

Toni Golen, MD, Editor in Chief, Harvard Women's Health Watch; Editorial Advisory Board Member, Harvard Health Publishing; Contributor
Disclaimer:
As a service to our readers, Harvard Health Publishing provides access to our library of archived content. Please note the date of last review or update on all articles.
No content on this site, regardless of date, should ever be used as a substitute for direct medical advice from your doctor or other qualified clinician.