I saw on TV here last week where our Gvt is trying to bann tanning beds because of the high risk of melanoma and other skin cancers. Tanning beds have a concentration of UV something like 3 times what you would get in the sun at the hottest part of the day, in the middle of summer.

Sufficient daily Vit D can be obtained from incidentary sun exposure.... for just 10 minutes per day. That could be from hanging out the washing, going to the store, emptying the mail box....etc.