Final regulations to implement ACA provisions, issued in 2013 by the US Department of Labor (DOL), said health-contingent wellness programs can vary group health plan premiums or cost sharing based on health status and will not be considered to discriminate based on health status if they meet five standards.
It's only a partial answer, but a Nile crocodile can eat up to half its body weight at a sitting, according to National Geographic. Since few freshwater fish weigh half as much as a crocodile, we can probably assume these croc feasts occur when they're able to ambush ungulates (e.g. zebras and antelope).
What do Giraffes Eat? Giraffes are avid eaters when food is plentiful. They prefer to consume what is in the trees including twigs and leaves. Their eating habits often encourage the growth of new foliage too which means that they can return to feed in that location on and off again. They also will consume a variety of types of fruits that seasonally grow in the trees.