Vitamin D is often overlooked since it’s naturally produced when our skin is exposed to sunlight. Fair-skinned individuals need just 10 minutes of sun exposure daily to maintain healthy levels. However, studies since 2000 reveal Vitamin D deficiencies are widespread, particularly among sunscreen users, the elderly, and those who spend most of their time indoors.

Deficiency symptoms include:
1. Frequent illness due to a weakened immune system.
2. Fatigue, potentially improved with supplements.
3. Aching bones from impaired calcium absorption.
4. Frequent fractures due to weakened bones.
5. Depression linked to Vitamin D’s role in serotonin regulation.
6. Unexplained weight gain, possibly reversible with supplements.
7. Slow-healing wounds, as Vitamin D aids skin repair and infection control.
8. Excessive sweating, particularly on the forehead.
9. Muscle weakness, especially in older adults.
10. Muscle pain, often reduced with supplements.

If you notice these symptoms, get more sunlight, eat Vitamin D-rich foods like fatty fish, eggs, and cheese, or consider supplements. Consult your doctor to confirm deficiency and discuss treatment options. Early intervention can prevent serious health risks.