Gastroenterologist Questions Celiac Disease

Vitamin D3 for Celiac patients

Hello! My 20 year old daughter has been diagnosed with celiac disease and is needing to take a multivitamin and Vitamin D3 supplement (she has a vitamin d deficiency). At first, she was having gastrointestinal issues every couple of days with the vitamins. After researching a bit, we found a great multivitamin specifically designed for patients with celiac, colitis, etc. It has 200% of the daily value for vitamin d, but the doctor wants her to take 250mcg per day (1250%). Do you recommend a certain vitamin d3 supplement that is easier for celiacs to digest?

Female | 20 years old
Complaint duration: 3 months
Medications: Forvia Multivitamin, sertraline
Conditions: Celiac

1 Answer

You may not like my answer but it is not clear that vitamin D needs to be supplemented. The published literature on this is of poor quality. Measuring vit D levels in the blood may be a reflection of an underlying inflammatory process (such as celiac) rather than a true deficiency. Once inflammation is successfully resolved, vit D levels return to normal even without supplementation.
There is no vit D "specifically designed for patients with celiac". This is a marketing ploy.
There are no randomized controlled trials of vitamin D vs placebo in people with inflammatory bowel disorders thus no clear benefit has ever been demonstrated. Association studies, anecdotes and theoretical advantages do not count.
Bottom line: my advice is to focus on control of the celiac with a gluten free diet and not get hung up on how much vit D should be given.