I have a marmoset monkey. a marmoset are one of the smallest monkeys in the world. They come from south America. His name is Tarzn. He eats marmoset can meat that is made for marmosets and other primates. He also eats Fresh fruits and veggies. He also eats monkeys biscuits,monkey O's, yogurt,babyfood,cereal,cheese,pizza crust,noodles. I can go ON&ON but to make it short he can eat almost anything a humin eats. He also gets vitamins daily and he also get a childrens gummie vitamin and everyother dy i give him 1/2 a tab of a tums. It gives him some calcium. Tarzan is one amazing little monkey. I will say theses monkeys sell from $1,500 to $2,500