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Re: Does anyone think that over exposure to UVB could..........
Posted by Eric on 11/23/2015, 3:31 am, in reply to "Does anyone think that over exposure to UVB could.........."
According to wikipedia, it's impossible because an equilibrium is reached where degradation equals synthesis in the skin.
Of course, oral dosing of Vitamin D3 can certainly result in toxicity.
I read a paper recently that showed that iguanas could utilize Vitamin D3 in their diet which means that UVB bulbs aren't strictly necessary. I always wondered about that...