Cabbage, the stuff your grandpa eats too much of and leaves him farting all night long. Well it’s not too far off from what will happen to your guinea pig if you give him too much. Cabbage, just like broccoli is prone to giving guinea pigs bloating and gas. It is safe to feed them green cabbage (savoy is a good choice), but stay away from red leafed varieties. Being a gaseous veggie, limit cabbage to 1 leaf per week if you can.