7 Signs Your Body Is Running Low on Vitamin D — Even in Summer

Vitamin D deficiency can still happen during summer, and symptoms like fatigue, muscle weakness, mood changes, frequent illness, and hair thinning are often overlooked or blamed on stress and aging. Experts warn that indoor lifestyles, sunscreen use, and certain health conditions may prevent the body from producing enough vitamin D even in sunny weather. Pexels

Many people assume that spending more time outdoors during summer automatically protects them from low vitamin D levels. However, vitamin D deficiency remains surprisingly common year-round, even in sunny climates. Factors such as sunscreen use, indoor lifestyles, darker skin tones, aging, and certain medical conditions can limit the body’s ability to produce or absorb enough vitamin D. Recognizing vitamin D deficiency symptoms early can help prevent long-term issues involving bone health, immunity, and overall well-being.

1. Persistent Fatigue That Doesn’t Improve With Rest