Depression could be first sign of vitamin D deficiency. Check 5 other early symptoms before it's too late

Vitamin D deficiency is a widespread yet often undiagnosed condition that can affect bones, muscles, immunity, and mental health. One of the earliest signs can be depression, but other symptoms to watch for include persistent fatigue, muscle and bone pain, slow wound healing, hair loss, and frequent infections. Experts emphasize that sunlight, vitamin D-rich foods, and supplements under medical guidance can help restore healthy levels and prevent long-term complications.