Lizards should be able to eat raw meat without food poisoning.

[DioChasek]

Question is do we mess with additional species digestive systems or only lizard and cow? Can roaches start eating ???? and the other really bad food? What about aquatics do we go real life analogs or their rpg equivalent illithids? Could also consider adding dietary traits like celiac disease, vegan, and strict carnivore.

Of course the other thing to bring up is there enough benefit to justify what could turn into a huge headache of coding and redesign of species traits. I like it personally but I also am a humble non coder.