11 Essential Bone Health Facts About Calcium and Vitamin D You Should Know

8. Sun exposure: how much is practical and safe for vitamin D?

Sunlight helps your skin make vitamin D, but how much you need depends on several factors: skin tone, latitude, season, time of day, and clothing. Short periods—about 10 to 30 minutes of sun on face, arms, or hands several times a week—can help many people build vitamin D stores, but those with darker skin may need longer exposure. Morning sun is gentler and easier to fit into routines like a short walk before tiffin prep, while midday offers higher UVB but also more burn risk. Sunscreen reduces vitamin D production, and that’s important for skin cancer prevention; balance safe sun habits with dietary sources. If regular sun exposure is impractical, focus on fortified foods and testing-guided supplements to maintain healthy levels year-round.