5 ms·
"It has been suggested by some vitamin D researchers, for example, that approximately 5–30 minutes of sun exposure between 10 AM and 3 PM at least twice a week
by grok2 8y ago
"It has been suggested by some vitamin D researchers, for example, that approximately 5–30 minutes of sun exposure between 10 AM and 3 PM at least twice a week to the face, arms, legs, or back without sunscreen usually lead to sufficient vitamin D synthesis..." as per [1]. Maybe the quality of exposure is different? Atleast from reading articles like this, it seems like normally people at any latitude should not have trouble getting sufficient Vitamin D.
1. https://ods.od.nih.gov/factsheets/VitaminD-HealthProfessional https://ods.od.nih.gov/factsheets/VitaminD-HealthProfessiona...
- diimdeep 8y agoThere is massive genetic factors related to producing Vitamin D.
- cuspycode 8y agoThis is a hasty conclusion. For example, the city of Kiruna in northern Sweden (latitude 67 degrees north) has about three weeks of total darkness each winter. So there is no sun exposure at all during that time. And even south of the arctic circle, the chance of getting 5-30 minutes of sun exposure twice a week is not guaranteed in northern countries. For example, you might be stuck in an office building while the sun is above the horizon.