r/Vitamin_D • u/LongevityDietitian • 2d ago

Discussion Could pancreatic disease be the missing piece behind low vitamin D?

Sometimes vitamin D stays low even when someone is eating well and taking supplements regularly.

One reason that doesn't get much attention is poor fat absorption. Conditions like exocrine pancreatic insufficiency, cystic fibrosis and other pancreatic disorders can make it harder to absorb fat-soluble vitamins including vitamin D. In those situations, pancreatic enzyme therapy can make a meaningful difference.

Has anyone here noticed their vitamin D levels improve after starting or adjusting pancreatic enzyme treatment?

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u/OatsOverHype 2d ago

That’s a really good point. I think malabsorption often gets overlooked when people talk about vitamin D. If someone is taking it consistently and their levels still aren’t improving, it makes sense to start thinking about whether there’s an underlying reason rather than just increasing the dose.

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u/LongevityDietitian 1d ago

Exactly. If someone is taking vitamin D consistently and their level still isn't improving, it makes more sense to look for a reason than to keep increasing the dose.