Collagen peptides
Also called: collagen supplement
What it means
Collagen peptides are an easy-to-absorb form of collagen protein, the main building block that gives bone its flexible structure, sometimes taken as a daily supplement.
Since collagen makes up roughly a third of your bone, supporting it with enough protein, vitamin C, and possibly collagen peptides may help maintain the framework your bone mineral relies on.
Bone isn't just mineral - about 35% of it is collagen, the protein that gives bone its flexibility and structure. Collagen peptide supplements are broken-down forms of collagen, typically taken in doses of 10-15 grams daily, that are easier for the body to absorb. The idea is that giving your body extra building blocks may support the collagen framework that bone mineral attaches to.
Research on this is still emerging, but one study found that specific collagen peptides, combined with resistance training, increased bone mineral density in postmenopausal women. This suggests collagen peptides may work best alongside exercise rather than as a stand-alone fix. Pairing supplements with activity seems to matter more than taking either one alone.
Vitamin C plays a key supporting role here too, since your body cannot make collagen without it. Getting enough vitamin C, generally in the range of 250-500 mg per day, supports both bone and connective tissue. Overall protein intake matters as well, with 1.0-1.2 grams per kilogram of body weight suggested for older adults to support bone health.
How sure is this?
Graded Emerging Evidence: Promising research, but findings are still developing and may be primarily from laboratory or animal studies. Read each study with its grade in mind. One study is a piece of the picture, not the whole of it.
Where the Academy teaches it
This page is the short version. The lessons teach it in full, with the context around it and a quiz to lock it in.
Questions people ask about this
The best-supported ones for bone health are calcium, vitamin D3, vitamin K2, and magnesium — these four work together and have solid research behind them. Collagen peptides, vitamin C, adequate protein, and omega-3 fatty acids also show promising evidence, though some of that research is newer and still developing. The real "hype" risk isn't a specific supplement being fake, but taking things randomly, in the wrong amounts, or without knowing your actual blood levels and food intake first.
Read the full answer →Related words
Type I collagen is the main protein in bone, forming a flexible framework that mineral crystals attach to, giving…
Vitamin C is a nutrient your body needs to make collagen, the flexible protein framework that gives bone its toughness.
Protein intake means getting enough dietary protein to support collagen, the protein that makes up about a third of…
Resistance training is exercise where your muscles work against weight or resistance, like squats, deadlifts, or…
Bone mineral density (BMD) measures how much mineral is packed into your bones, usually estimated with a DEXA scan,…
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