Hamster Diet
All hamsters need a good diet for good health. Selected seeds, minerals and vitamins can give your hamster a luscious coat and bright eyes. However, a poor diet can result in a hamster that is more prone to illness, and the incorrect ingredients may even kill. Also, too little food can result in a hamster which is underweight and emaciated and too much can result in an overweight hamster.
Overweight Hamsters
Some people don't think having an overweight hamster is a problem. However, it is very unfair to your hamster - they won't be able to get around properly and won't live a happy life. Obesity can be caused by feeding them too much at a time, giving them too many treats or feeding them a food which is too sugary or fatty.