I gave mine treats as soon as they could eat. Make sure if you're going to give them vegtables like carrots to cut them up TINY. Almost mash them. Watermelon is a great 1st choice. Here's some things you must NEVER give them.
Avocado
chocolate
onion
citrus fruits
chicken(it will make them go caniball)
tomato plant parts
eggplant
also avoid junkfoods