Inflammation
Inflammation in your small intestine would also cause vitamin B12 deficiency. It can be caused by Crohn’s disease, infections, or other pain-relieving medications. Damages to this part would affect the absorption of your vitamin B12 and cause an overall deficiency. This condition is usually followed by pain in the abdomen’s lower quadrant. It is important to talk with your healthcare provider for proper treatment options to alleviate inflammation in the small intestine. [10]
