And also some insectivorious snakes, such as the rough green snake, need supplementation like lizards. There has always been a debate over whether snakes synthesize vitamin D via
UVB light, or more succinctly, whether they need this type of light to manufacture vitamin D.
Basically, for your snakes, what Morti said...If you wanna see the nutritional content of various prey items, check out Misc caresheets over there <--- to the left. There's a table I compiled of nutritional composition of various prey items.
[addsig]