The Claim

In older adults aged 65 and above, 12 to 24 weeks of protein supplementation with or without resistance exercise has no significant effect on bone mineral density at the spine or total body.

Source: Protein intake and bone mineral density: Cross‐sectional relationship and longitudinal effects in older adults

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
67score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Quantitative
1 study reviewed
In plain English

Taking protein supplements for 12 to 24 weeks, with or without strength training, does not change bone mineral density in the spine or whole body in people aged 65 and older.

See the scientific wording

In older adults aged 65 and above, 12 to 24 weeks of protein supplementation with or without resistance exercise does not significantly improve bone mineral density at the spine or total body.

Why this might work

Even when older adults get more protein, their bone-forming cells don't increase their activity enough to build denser bone because the signals that trigger bone growth are too weak and the minerals needed to harden the bone don't get deposited properly.

Supported mechanismbased on 1 study

What the research says

1 study
  1. Study: Protein intake and bone mineral density: Cross‐sectional relationship and longitudinal effects in older adults

    Giving older adults extra protein pills or shakes for up to 6 months didn’t make their bones any denser, even when they also did strength training. So, the idea that protein supplements improve bone density in this group isn’t backed by this study.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.