The Claim
Among middle-aged Australian adults, lacto-ovo vegetarian dietary patterns are associated with significantly lower lean mass by 1.46 kg and lower bone mineral density T-scores by 0.41 standard deviations compared to regular meat-eating dietary patterns, despite equivalent intake of calcium and protein.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Middle-aged Australian adults who eat plant-based diets with dairy and eggs have, on average, 1.46 kilograms less muscle mass and 0.41 standard deviations lower bone mineral density than those who eat meat, even when both groups consume the same amounts of calcium and protein.
See the scientific wording
Among middle-aged Australian adults, those following lacto-ovo vegetarian diets have significantly lower lean mass by 1.46 kg and lower bone mineral density T-scores by 0.41 standard deviations compared to regular meat eaters, despite both groups meeting recommended intakes for calcium and protein, suggesting that specific plant-based dietary patterns may be associated with subtle reductions in muscle and bone mineralization markers.
Plant-based diets provide less leucine, a key amino acid that triggers muscle and bone building. Without enough leucine, the body's signal to grow muscle and strengthen bone weakens, leading to less muscle mass and weaker bones over time.
What the research says
1 studyIn Australia, people who eat eggs and dairy but no meat had a little less muscle and slightly weaker bones than meat-eaters, even though both groups ate enough protein and calcium. The study found this difference for sure.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.