Your body makes vitamin D for free, from sunlight. So why are almost half of people low on it?
• Only one narrow band of sunlight, UVB, starts the process in your skin
• In Boston, samples made none from November through February
• Skin does not make vitamin D from sunlight through a window
• Darker skin and older skin tend to make less
• You would need about 14 large eggs to reach 600 IU, one day’s recommended amount for most adults
• The worst numbers came from the sunny Eastern Mediterranean region: about 72% below 50 nmol/L
• It is about 16% worldwide below 30 nmol/L and 48% below 50 nmol/L. Low does not always mean sick
Full 3D breakdown on our channel. General information, not medical advice.
Sources: Cui et al., Frontiers in Nutrition, 2023; Webb et al., 1988; Engelsen, Nutrients, 2010; MacLaughlin and Holick, 1985; NIH Office of Dietary Supplements. Explanations for the Eastern Mediterranean are suggested by the study’s authors, not measured. All 3D built in code with three.js and GSAP. Mannequin by Quaternius (Poly Pizza, CC BY 3.0). HDRI: Poly Haven (CC0). Illustration, globe stylized.
#shorts #vitaminD #health #sunlight #science #3D
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