JAMA Clinical Reviews Vitamin D Guidelines for Healthy Children and Adults
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Apr 23, 2025 Sherri-Ann M. Burnett-Bowie, an Associate Professor at Harvard Medical School, dives into the latest recommendations on vitamin D supplementation. She discusses the challenges of getting enough vitamin D from natural sources and fortified foods. The conversation highlights the safety and efficacy of supplementation, especially in disease prevention for both children and adults. They evaluate the impact of dosage across different age groups and clarify guidelines, emphasizing personalized approaches for at-risk patients.
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Vitamin D: More Than a Vitamin
- Vitamin D is not a typical vitamin because our skin produces it when exposed to sunlight.
- Most people rely on fortified foods or supplements due to insufficient sunlight exposure.
Vitamin D Food Sources
- Eat fatty fish like salmon, trout, and tuna for natural vitamin D sources.
- Choose fortified milk or plant-based milks and UV-exposed mushrooms to supplement vitamin D intake.
Vitamin D Supplement Safety Limits
- Limit daily vitamin D supplementation to 4,000 IU to avoid harm.
- Excess vitamin D can cause high calcium levels and kidney stones, though these are rare.