CollagenDoes collagen make bones stronger?
Updated 9 Nov 2026
Short answer
One trial found a small rise in bone density. 131 women after menopause with low bone density took 5 g of collagen peptides or placebo a day for 12 months. Bone density of the spine and of the upper thigh bone rose with collagen and stayed about the same with placebo.[1] No review that pooled several bone trials of collagen was found in PubMed, so this result rests on one trial.[1]
Sources (1)
- Specific Collagen Peptides Improve Bone Mineral Density and Bone Markers in Postmenopausal Women-A Randomized Controlled Study. König D, Oesser S, Scharla S, Zdzieblik D, Gollhofer A Nutrients, 2018. PMID 29337906
More about collagen
What is collagen?Can you get collagen from food?What is collagen used for?How long does collagen take to work?Is collagen safe?Does collagen help joint pain?For education; not medical advice. Talk to a doctor before you start, stop or change a supplement.