ok, i found this on garlic:
Question
Hello, I have read conflicting things about whether garlic is good or bad for bunnies. On PubMed there are medical studies showing the reduction of arthersclerosis in rabbits w/ garlic use. However, non-expert sources such as House Rabbit groups are insistent that garlic is toxic. What is your opinion?
Answer
Dear Melinda,
I would not give garlic or onions to a rabbit. Mammals other than the great apes (including humans) sometimes contract a dangerous type of anemia (Heinz Body anemia) from compounds present in these aromatic vegetables.
Rabbits given a healthy diet don’t generally have a high risk of atherosclerosis, so I wouldn’t worry about that. Just keep him on a healthy diet:
http://www.bio.miami.edu/hare/diet.html
and you should be fine.
I hope this helps.
Dana
here is the site address i got it from:
http://en.allexperts.com/q/Rabbits-703/Garlic-good-bad.htm