HOW SHOULD I FEED MY HAMSTER?

If you use a mix, use a good packaged one. Some hamsters get sore cheek pouches, because the hamster mix has got sharp oats in it. Some loose mixes have a lot of dust in them. Try to make your hamster finish up its mix. If it leaves a lot, reduce the amount you feed so that it has to eat up everything in the mix. Otherwise it will just eat the bits it likes best and won¹t get a balanced diet.
Too many hamster nibbles, hamster choc drops or sunflower seeds will make your hamster too fat. Hamsters need fresh fruit and veg, as well as hamster mix. This is important not just for their health but for their emotional wellbeing. A variety of food makes their life more fun. They love grapes and almost all sorts of fruit and veg. Go easy on lettuce. Only feed this about once a week. Feed nuts in their shells (not shelled), so that the hamster has to chew its way in. This is good for their teeth and gives them something to do. Try dog biscuits as treats. These aren¹t too fattening.