Will your stool tests tell me if I'm not absorbing vitamin D?

Our Gut Health Tests don't test specifically for vitamin D absorbtion but there are other markers which reflect general malabsorbtion.

We do not currently test directly for vitamin D malabsorption but there are a few biomarkers on all our Gut Health tests, such as calprotectin and zonulin that can reflect malabsorption issues or 'leaky gut', which low vitamin D levels can cause.