How do you stop the starvation of my hamster?

If your hamster is lossing a little weight then that's ok if it's lossing a lot then buy some crickets or meal worms only from the pet store they are high in protein and are a good food to give your hamster in its diet or it can be a yummy treat for your or anyone's hammy but not all hamsters like the same things your hamster might have a bold reaction or your hamster might ignore it or run away from it and that is totally fine and you can give your hamster more food than usuall, I hope this helps good luck