what are the effects of very low vitamin d
Symptoms of Vitamin D Deficiency. Severe Vitamin D deficiency in children causes them to get the bowed legs, and sometimes arms, that are characteristic of the soft bone disease of rickets. In adults, this severe form of low Vitamin D causes a disease called osteomalacia, and can be a precursor to osteoporosis. Osteomalacia is similar to rickets, as it is a softening of the bones, but it doesnât lead to bowed legs as it does in children.