People suffering from inflammatory bowel diseases like Crohn’s, ulcerative colitis, or celiac disease often have difficulty absorbing dietary fats. Since Vitamin D is absorbed alongside fat, any gastrointestinal disorder that impairs fat absorption directly leads to a deficiency. Furthermore, individuals who have undergone weight-loss surgeries, such as gastric bypass, are at extreme risk due to the shortening of the absorption path in the intestine and must receive corrective doses under strict medical supervision.
