The Claim
Adult vegetarians have a small but statistically significant difference in total lumbar spine bone mineral density compared to nonvegetarians after adjustment for body mass index and waist circumference.
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.
Adults who follow a vegetarian diet have slightly different bone mineral density in the lower spine compared to nonvegetarians, even when accounting for differences in body size.
See the scientific wording
A small but statistically significant difference in total lumbar spine bone mineral density persists between adult vegetarians and nonvegetarians after adjusting for body mass index and waist circumference, suggesting that factors beyond body size—such as nutrient intake or hormonal differences—may contribute to site-specific bone density variation.
Vegetarians consume less calcium and vitamin D from food, which reduces the amount of mineral deposited into bone tissue, especially in the lower spine where bone turns over quickly. This leads to slightly lower bone density even when body size is accounted for.
What the research says
1 studyEven after accounting for how big or heavy people are, vegetarians still have slightly lower bone density in their lower spine than nonvegetarians—suggesting something else about their diet or body chemistry might be affecting their bones in that one spot.
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.