Rats are omnivores, just like human beings. In addition to Becky's homemade dry food mix (which is excellent!) you can give them table scraps that are leftovers from your own dinner. Just do NOT let them get fat on them. Fat rats die early, get more cancers, have strokes, etc. Here's a great link for what you can and cannot feed a rat as far as "human" foods.

http://www.ratnutrition.com/suppleme...forbiddenfoods