Synopsis

Source of validity: Scientific
Rating (out of 5): 2

Whey protein has some scientific evidence supporting its use in the context of osteoporosis, although the evidence is not robust or conclusive. Whey protein is a high-quality protein source rich in essential amino acids, particularly leucine, which is known to stimulate muscle protein synthesis. Muscle mass is positively correlated with bone density, and sarcopenia (loss of muscle mass) is a risk factor for osteoporosis and related fractures. Some clinical studies suggest that increased protein intake, especially from dairy proteins like whey, may help preserve bone mineral density in older adults, possibly by stimulating insulin-like growth factor 1 (IGF-1) production, which plays a role in bone formation. Moreover, dairy proteins can enhance calcium absorption, another factor important for bone health.

However, while some small trials and epidemiological studies indicate potential benefit, systematic reviews and meta-analyses have found only modest or inconsistent effects of whey protein supplementation on bone mineral density and fracture risk in humans. The evidence is stronger for overall dietary protein and dairy intake, rather than whey protein specifically. Most clinical guidelines do not currently recommend whey protein as a standalone therapy for osteoporosis but do support adequate protein intake as part of an overall bone health strategy.

In summary, there is some scientific rationale and preliminary evidence for whey protein supporting bone health, but it is not considered a primary therapy for osteoporosis, and the evidence base is limited.

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Products containing Whey protein

Nature's Sunshine AIVIA Whey Protein
Nature's Sunshine AIVIA Whey Protein
Nature's Sunshine Free Amino Acids