Vitamin D deficiency can cause pain and weakness in bones and muscles. Extreme deficiency can lead to rickets in children and osteomalacia in both children and adults, resulting in soft bones and skeletal deformities. Causes:
Insufficient dietary intake of vitamin D over time, especially in lactose-intolerant individuals and vegans Impaired kidney function, which reduces the amount of dietary vitamin D that gets converted into a form our bodies can use Limited sunlight exposure Inflammatory bowel disease, which interferes with the absorption of dietary fat and fat-soluble vitamins