The vitamin is needed to regulate the amount of calcium and phosphate in the body.
A lack of vitamin D can lead to serious complications, including osteomalacia, rickets, or some deformities.
But, the symptoms of a vitamin D deficiency can be very difficult to spot.
One of the hidden warning signs of the condition is having severe bone pain, it's been revealed.
READ MORE: Vitamin D deficiency symptoms - what can you smell?
"Severe lack of vitamin D causes rickets, which shows up in children as incorrect growth patterns, weakness in muscles, pain in bones and deformities in joints," said the Cleveland Clinic.
"This is very rare. However, children who are deficient in vitamin D can also have muscle weakness or sore and painful muscles.
"Lack of vitamin D is not quite as obvious in adults.
"Signs and symptoms might include fatigue, bone pain, muscle weakness, muscle aches, or muscle cramps, and mood changes, like depression."
Go here to read the rest:
Vitamin D deficiency: The subtle pain you should never ignore - it could be serious - Express
