a busy day. But if you feel exhausted even after resting, low vitamin D may be one possible factor. Vitamin D supports normal body function, and when levels are too low, some people may feel unusually weak or drained.
Fatigue alone does not prove a vitamin D deficiency. Stress, poor sleep, anemia, and other health conditions can also cause tiredness. Still, if the fatigue lasts for weeks or affects daily life, it may be worth speaking with a doctor.
Vitamin D helps the body absorb calcium, which is important for
