Hamsters love fruit and vegetables, but you need to be careful about the amount you are giving them. Hamsters are obviously only small creatures and too much fruit and veg in their diet can cause diarrhea. A small cube of apple, carrot or cucumber is enough. Hamsters normally especially love carrots but remember they are high in sugar so don’t give your pet too much. Other fruit and vegetables your hamster may like are; chicory, cauliflower, broccoli, pear, peach and banana. You should never give your furry friend any citrus fruit or onion as they are high in acid and your hamster could end up with an upset tummy.