symptoms of vitamin d deficiency in adults
âMany of these symptoms are classic signs of vitamin D deficiency osteomalacia, which is different from the vitamin D deficiency that causes osteoporosis in adults,â he says. âWhatâs happening is that the vitamin D deficiency causes a defect in putting calcium into the collagen matrix into your skeleton. As a result, you have throbbing, aching bone pain.â. According to Dr. Holick, one of the first, classic signs of vitamin D deficiency is a sweaty head.