Description
Vitamin D is naturally produced by the body when exposed to direct sunlight, however, actual UV ray exposure and Vitamin D synthesis are dependent on many factors (e.g. seasons, location, time, age, smog, skin darkness)
Vitamin D is naturally produced by the body when exposed to direct sunlight, however, actual UV ray exposure and Vitamin D synthesis are dependent on many factors (e.g. seasons, location, time, age, smog, skin darkness)