5 ms·
In theory. In practice most people, especially at non-Tropical latitudes or who don’t spend multiple hours outside everyday don’t get nearly enough.
by TylerE 4y ago
In theory.
In practice most people, especially at non-Tropical latitudes or who don’t spend multiple hours outside everyday don’t get nearly enough.
- 2000UltraDeluxe 4y agoAll day at Arctic latitudes, and that assumes your skin is somewhat lightly pigmented, and that you don't live too far north. If you do, there is no sunlight during winter. If you've got a daytime job, live above the Arctic circle or immigrated, then your only option is to eat vitamin D-rich foods or eat supplements.