Reptile nutrition — UVB-dependent vitamin D3 synthesis and calcium regulation
Verbatim first-hand facts from Merck Veterinary Manual — Reptiles (saved first-hand text). Each bullet is an exact substring of the cited source and C1-substring verified (second-round nutrition broadening, reusing saved Merck source).
Nutritional facts
- important for most diurnal lizards and chelonians for vitamin D3 synthesis and calcium regulation