SaralnamaDr Saurabh Sethi, a Harvard-trained gastroenterologist, shared 5 facts about vitamin D. Today: It acts like a hormone, controlling over 200 genes. From tomorrow: Food sources are rare; 15 minutes of sun exposure equals piles of salmon or eggs. Until next week: Deficiency is often silent, causing fatigue or infections. From next week: High doses can harm kidneys; adults need 600-800 IU daily. Next month: Natural sunlight is best; 10-30 minutes of midday sun produces 1000-2000 IU. Dr Amit Saraf of Jupiter Hospital adds that vitamin D deficiency is common in urban India. He advises getting tested before taking supplements and including vitamin D-rich foods in meals. (Updated 28 Oct 2025, 11:09 IST; source: link)
Key Points
- Dr Saurabh Sethi, a Harvard-trained gastroenterologist, shared 5 facts about vitamin D
- Today: It acts like a hormone, controlling over 200 genes
- From tomorrow: Food sources are rare; 15 minutes of sun exposure equals piles of salmon or eggs