Peptides, particularly specific bioactive peptides such as collagen peptides, have scientific evidence supporting their use in promoting bone healing and supporting bone health. Research has shown that certain peptides can stimulate osteoblast activity, enhance collagen formation, and promote mineralization, all of which are crucial processes in bone repair following fractures. Collagen peptides, in particular, have been studied in both animal models and human trials for their role in accelerating fracture healing and improving bone mineral density.

A number of studies have demonstrated that oral supplementation with collagen peptides increases the synthesis of bone matrix proteins and may positively influence bone turnover markers. Some randomized controlled trials suggest improved outcomes in bone healing time and quality when peptides are used adjunctively with standard orthopedic care. However, the overall quality and size of these human clinical trials are still limited, and most evidence comes from preclinical or small-scale studies.

In summary, while there is promising scientific validation for the use of peptides (especially collagen peptides) in supporting broken bone healing, the evidence base is moderate (rated 3/5), with a need for larger, well-designed clinical trials to confirm efficacy and determine optimal dosing.