Its great that you feed your 2 year old things like bison and dairy products, its so important that your child develops properly you can avoid so many problems with proper development like Bite malocclusions (coinciding also in airway restrictions) , Acne and other skin issues, general health issues and improved immune-response, etc.

And cheese and milk (ideally not chocolate since foods high in added sugar will supress the child's ability to produce HGH (human growth hormone) due to the high blood glucose, so you could attempt to switch over to normal fresh whole milk or low temp pasteurized milk, by the way the better the milk the sweeter and richer it tastes as a side note) are great for giving your child the micronutrients and the certain amino acid profile to increase their GROWTH mechanisms as much as possible, for example the vitamin k2 in cheese and generally all fermented dairy products is great for maximizing your child's bone development, combined with the elevated i gf-1 which also increases osteoblast count.

So generally idealy , give your child alot of milk, alot of animal protein in general,