What is a typical symptom of vitamin D deficiency?

A typical symptom of vitamin D deficiency is an increased risk of bone fractures. Vitamin D plays a crucial role in calcium absorption and bone metabolism. When there is not enough vitamin D in the body, calcium levels can drop, leading to weakened bones, which makes them more susceptible to fractures. This condition can manifest as osteomalacia in adults, leading to fragile bones and increased fracture risk, especially in weight-bearing areas.

The other symptoms listed, such as excessive sweating and fatigue, heightened sensitivity to cold, and increased appetite and weight gain, may be associated with other health issues or deficiencies but are not direct symptoms of vitamin D deficiency. For instance, excessive sweating can occur as a symptom of other deficiencies or conditions but is not specific to vitamin D. Similarly, heightened sensitivity to cold often relates to thyroid function rather than vitamin D levels, and changes in appetite and weight can result from various factors including metabolic conditions or psychological factors, rather than directly indicating a lack of vitamin D.