Signs that your body needs vitamin D and how to get it

8. Your intestine is causing you some problem

People with gluten intolerance, Crohn’s disease or inflammatory bowel disease have a higher risk of vitamin D deficiency due to the effects of these diseases on fat absorption.

Since fats are less well absorbed, fat-soluble vitamins such as vitamin D are in turn less well absorbed.

To avoid an excessive deficiency, it is sometimes sufficient to consume dairy products fortified with vitamin D.