The Claim
Serum vitamin D levels do not differ significantly between adults following plant-based diets and those following regular meat diets, even when plant-based diet followers have higher vitamin D supplement use.
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 eat plant-based diets have the same blood levels of vitamin D as adults who eat meat diets, even though those on plant-based diets take more vitamin D supplements.
See the scientific wording
Serum vitamin D levels are comparable between adults following plant-based diets and those following regular meat diets, despite higher supplement use in plant-based groups, suggesting that dietary patterns do not inherently impair vitamin D status when supplementation is common.
When people take vitamin D supplements, their blood levels of vitamin D rise because the supplement is absorbed in the gut, converted in the liver and kidneys into its active form, and enters the bloodstream. This happens the same way whether someone eats meat or plants, so dietary patterns don’t change how the body uses the supplement.
What the research says
1 studyPeople who eat only plants had the same vitamin D levels in their blood as meat eaters, even though plant-based eaters took more supplements. This means eating plants doesn’t lower your vitamin D if you take a supplement.
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.