"There has been increasing interest in determining the underlying cause of chronic pain syndromes, and vitamin D deficiency is currently under the spotlight.
The body uses vitamin D to help with the absorption of dietary calcium from the small intestine, and calcium is used to help with the development of bone. A deficiency in vitamin D means calcium cannot be efficiently absorbed which results in poorly formed bones. In children this can develop into rickets which causes a bowing of the legs, and in adults this causes osteomalacia, or poorly mineralized and softened bones. This has been found to contribute to chronic muscle and bone pain. There are numerous studies that associate vitamin D deficiency in patients who suffer from various conditions such as osteoporosis, rheumatoid arthritis, osteoarthritis, certain forms of cancer, depression, chronic fatigue, fibromyalgia, headache and migraine, neuropathies, and chronic pain..."
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