11. Skin problems
Skin problems are a major manifestation of vitamin A deficiency, and so is the case with insufficiency of vitamin D too.
Dermatological conditions such as psoriasis are frequently treated with creams containing this hormone, which indicates that it has much to do with the health of your skin. Moreover, conditions as common as acne and as severe as eczema also employ the use of vitamin D containing topicals.
12. Hair and scalp changes
Since they are related to your skin, the hair and scalp also exhibit deteriorating changes with the deficiency of vitamin D. Studies indicate that hair loss especially in women can be attributed by some part to vitamin D deficiency.
In a research work which was conducted by H. Rasheed with his senior, E. Hamdy, and other team members from the Cairo University, evaluated serum ferritin and vitamin D levels in women who were experiencing Female pattern hair loss (FPHL) and Telogen effluvium (TE). In both conditions, vitamin D levels were on the lower side when compared to their normal counterparts.