Research

Macro partitioning

Older adults transitioning to vegetarian or vegan diets may face greater challenges in maintaining protein adequacy compared to younger adults.

If you are an older adult switching to a plant-based diet, pay closer attention to your protein intake. You may need to be more deliberate about including high-quality plant proteins like legumes and soy products to ensure you are meeting your increased requirements, as the margin for error is smaller than in younger adults.

ModerateQualifiesMEDIUM confidence
We also specifically address this in older adults, where the issues linked to the protein adequacy of vegetarian diets are more complex.
François Mariotti et al. · Nutrients · 2019

Why this rating

The paper states data is scarce and the situation is 'more complex', implying lower certainty than the general adult population findings.

Source

Dietary Protein and Amino Acids in Vegetarian Diets—A Review

François Mariotti et al. · Nutrients · 2019

DOI 10.3390/nu11112661

narrative_reviewCited 393×
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

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