bike,

@brainpilgrim @marenf @actuallyautistic

This exposure of 10–15 minutes, on a frequency of two to three times per week, will cause the adult's skin to produce enough vitamin D."

https://en.wikipedia.org/wiki/Health_effects_of_sunlight_exposure

but this quote from wikipedia doesn't specify skin, latitude, or time of year. so presumably it's talking about a white person somewhere in the US during summer.

4/4

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