Vitamin D deficiency
Vitamin D deficiency, also known as hypovitaminosis D, is a condition resulting from insufficient levels of vitamin D in the body. It can be caused by inadequate sunlight exposure, dietary intake, or medical conditions that impair vitamin D absorption or conversion. The deficiency can cause a range of symptoms, including bone pain, muscle weakness, fatigue, and an increased risk of fractures, and can lead to bone-softening diseases like rickets in children and osteomalacia and osteoporosis in adults. The treatment for vitamin D deficiency usually involves vitamin D supplementation and addressing the underlying cause.