adding to a complete mix?

[racinghamster]

Supreme Science Selective is supposed to be a good food actually so I would agree with adding some every now and then if you fancy another addition, or if your hamster likes the SS, then nothing wrong with adding it daily. As Anthorn said, it`s a complete biscuit, so all the nutrients will be within that one biscuit. It can also be a good food to soften for an elderly hamster.

Don`t know how much Science Selective is though so if it`s expensive and your hamster isn`t keen on it, could be money wasted unless you have more than one hamster.