Indoor Tanning Bad, Docs Say
What about Vitamin D? continued...
Levine says indoor tanning provides radiation far in excess of what is needed to get enough vitamin D. And too much radiation exposure, she says, can actually remove vitamin D from the body.
"There is a certain point at which too much radiation causes the vitamin D production pathway to go backwards," Levine says. "With extended exposure, vitamin D is converted back to its precursors. It is doubtful that the greater risks incurred by extensive tanning will be offset by the benefits of vitamin D from this radiation."