leafy greens like spinach, kale, spring mix, romaine lettuce (I don't know if iceburg is ok or not, my understanding is that it's mostly crunchy water, not much nutrition, but I could be wrong) they can have toms, broccoli, cucumber, squash, cooked pumpkin, cooked sweet potatoes, peas, corn, green beans, cooked beans like lima or kidney etc (be careful with things that cause gas, don't give too much as it can cause stomach discomfort) cooked Brussels sprouts, etc. Banana, apple, pear, all natural applesauce (no added sugar) baby food veggies and fruits and cereals, melon, watermelon, red and green grapes, berries like blueberry and strawberry . Um, yes there's a LOT of veggies and fruits that are ok, only a few that they can NOT have, let me dig up the list of forbidden foods for you
OK here it is:
http://www.ratshackforum.com/forum/showthread.php?t=22782
also I moved your thread to the diet section, ;-)