>For those that don’t know, Vitamin d is created when sunlight hits skin. Actually it's when UVB rays hit the skin, and only during certain times of the day, a

>For those that don’t know, Vitamin d is created when sunlight hits skin. Actually it's when UVB rays hit the skin, and only during certain times of the day, and north of 37 degrees only during part of the year. In order to get enough UVB rays to make Vitamin D you need sunlight from around noon, during spring summer and fall https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3257661/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3257661/