Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Bovine sources, particularly bovine-derived bone meal or hydroxyapatite, are used to support or treat calcium deficiency due to their high calcium content and bioavailability. Scientifically, bovine bone meal contains naturally occurring calcium and phosphorus in a ratio similar to that found in human bone, which may facilitate absorption and incorporation into the skeletal system. Several studies have investigated the bioavailability of calcium from bovine sources compared to traditional calcium supplements like calcium carbonate or citrate. Research generally suggests that bovine-derived calcium is well absorbed, although not always superior to other forms. The use of bovine bone meal as a calcium supplement has a history in both traditional and modern medicine, but scientific scrutiny increased after concerns about contaminants (e.g., heavy metals, prions). Modern manufacturing standards have largely addressed these issues, and purified microcrystalline hydroxyapatite, sourced from bovine bone, is now marketed as a safe and effective calcium supplement. Randomized controlled trials have shown that calcium supplements, including those from bovine sources, can improve bone mineral density and reduce fracture risk in populations at risk for osteoporosis or calcium deficiency. However, the strength of evidence specifically for bovine versus other calcium sources is moderate, not overwhelming, which is reflected in the rating. Overall, bovine-derived calcium can be considered a validated option for addressing calcium deficiency, provided product quality and safety are ensured.

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