what happens if you are deficient;
Vitamin D deficiency is a common vitamin deficiency that causes issues with your bones and muscles. It most commonly affects people over the age of 65 and people who have darker skin. It’s preventable and treatable
Vitamin D
Vitamin D is a group of fat-soluble secosteroids responsible for increasing intestinal absorption of calcium, magnesium, and phosphate, and for many other biological effects. In humans, the most important compounds in this group are vitamin D₃ and vitamin D
symptoms
/Severe lack of vitamin D in children causes rickets. Symptoms of rickets include:
Incorrect growth patterns due to bowed or bent bones.
Muscle weakness.
Bone pain.
Deformities in joints.
This is very rare. Children with a mild vitamin deficiency may just have weak, sore and/or painful muscles.