You can give her tomatoes, celery, carrots, and cucumber. There's so much more, so you should check out that link. Make sure you don't feed them things such as avocado, potatoes, and iceberg lettuce. If you are planning on giving your guinea pig broccoli or cauliflower, (Not really sure how to spell it, lol) make sure you go easy because too much can give your guinea pig(s) bad gas, which is very bad for them.