Translations:Vitamin D/91/en

Adequate amounts of vitamin D can be produced with moderate sun exposure to the face, arms and legs (for those with the least melanin), averaging 5–30 minutes twice per week, or approximately 25% of the time for minimal sunburn. The darker the skin on the Fitzpatrick scale and the weaker the sunlight, the more minutes of exposure are needed. It also depends on parts of body exposed, all three factors affect minimal erythema dose (MED). Vitamin D overdose from UV exposure is impossible: the skin reaches an equilibrium where the vitamin D degrades as fast as it is created.