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by ec109685 1122 days ago
You don’t need much fat to absorb vitamin D and amount of fat you eat with the supplement doesn’t really affect the level in your bloodstream: https://pubmed.ncbi.nlm.nih.gov/23427007/

“ We conclude that absorption was increased when a 50,000 IU dose of vitamin D was taken with a low-fat meal, compared with a high-fat meal and no meal, but that the greater absorption did not result in higher plasma 25(OH)D levels in the low-fat meal group.”

1 comments

That study focused on infrequent megadoses... check out studies like this on that give modest daily doses: https://pubmed.ncbi.nlm.nih.gov/30691521/

Or this meta-regression of 43 studies: https://pubmed.ncbi.nlm.nih.gov/24993750/

Right, but they don’t show you need a lot of fat to help with absorption.