Protein intake and bone mineral density: Cross-sectional relationship and longitudinal effects in older adults.

ABSTRACT:

Background

There are several mechanisms via which increased protein intake might maintain or improve bone mineral density (BMD), but current evidence for an association or effect is inconclusive. The objectives of this study were to investigate the association between dietary protein intake (total, plant and animal) with BMD (spine and total body) and the effects of protein supplementation on BMD.

Methods

Individual data from four trials that included either (pre-)frail, undernourished or healthy older adults (aged ≥65 years) were combined. Dietary intake was assessed with food records (2, 3 or 7 days) and BMD with dual-energy X-ray absorptiometry (DXA). Associations and effects were assessed by adjusted linear mixed models.

Results

A total of 1570 participants [57% w

SUBMITTER: Groenendijk I 

PROVIDER: S-EPMC9891984 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature