Try to aim for at least 30% protein from a meat source like chicken.
And try to stay under 12% for the fat content.
Buy the best quality food that you can to ensure that your hedgie thrives and does not acquire fatty liver disease.
In the spring time mine always loved to munch on a fresh caught June bug for a treat. The crunching is kind of gross, but they are primarily insectivores ,naturally, so I put up with the grossness.
There are some decent hedgie care sites on the net with lots of tips. Enjoy !