Collagen: what it is and how much people take
Collagen is a structural protein. Supplements are usually hydrolysed collagen peptides from cattle, pigs or fish. Studies have looked at skin ageing and wound healing; the results are early. Studies have usually used 2.5 to 10 grams a day. The trials reviewed reported no side effects.
General information, not medical advice. Check with a doctor or pharmacist before taking a supplement, especially if you are pregnant or breastfeeding, take any medicine, or are under 18.
How much people take
| What studies looked at | Studies have looked at skin ageing and wound healing; the results are early. |
|---|---|
| Amounts studies used | 2.5 to 10 grams a day. |
| Official upper limit | None set |
Cautions and interactions
- The trials reviewed reported no side effects.
- For halal, look for fish (marine) collagen or a halal-certified bovine source.
Dose questions
Quick answers
- What is collagen?
- Collagen is a structural protein. Supplements are usually hydrolysed collagen peptides from cattle, pigs or fish.
- What has collagen been studied for?
- Studies have looked at skin ageing and wound healing; the results are early.
- How much collagen do studies use?
- 2.5 to 10 grams a day.
- Is collagen safe?
- The trials reviewed reported no side effects. For halal, look for fish (marine) collagen or a halal-certified bovine source.
Sources
- Published review (PubMed)
https://pubmed.ncbi.nlm.nih.gov/30681787/
Ask Supplement Check yourself
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