This would seem to be even more important in the event that WHS may be diet-related. Always remember that too much supplementation can do more harm then good. After I add the meat, supplements, fruits and veggies, I then add about 6 crickets to each dish of food and several dry pellets of a commercial food. I feed mealworms as a treat only as these are high in fat. There are many different commercially prepared hedgehog foods on the market.
Some people also use cat food.
All are rated in the top 10 in the United States for quality, using all natural, human-grade ingredients. Do your research on the hedgehog foods as well. Due to the eventual immobility of WHS hedgies, they will not be able to get to, or stand at their food dishes. As long as your hedgehog can still eat regular foods, you can easily prop him up to eat and drink by rolling a couple of hand towels and situating him in the center. Use shallow dishes to allow further ease of accessing the food and water.