Chicken, turkey, fish, (stay away from ocean fish with mercury) your better off with a natural diet, insects and vegetable matter. Insects have two things that are necessary in the skunk's diet, taurine and calcium. Taurine is an amino acid and is very often deficient in a skunk's diet. So far, I haven�t seen this problem in my current skunks. I think switching to an insect diet along with vegetation has done the trick. What insects can you feed skunks? Cricket to the mealworm from the dubia roach to the butterworm (butterworms cannot be raised at home) but they have twice the calcium as other insects we feed our pets). You will not want to harvest insects where there is any possibility of pesticides, herbicides or other contamination. Insects you purchase are often not fed the most nutritious of diets. My solution is raising them at home. I hand feed insects. My skunks wouldn't chase one for the world, it is beneath them, but they will happily crunch anything insect handed to them. They love cicada which we do harvest but in the middle of South Dakota away from farmland.
In the wild skunk's get a lot of exercise. They have to get out and find their food. We got to keep the little sweethearts moving if they want to or not

Feeding small amounts throughout the day is better than two bigger meals and a snack. If feeding insects you don't have to deal with the fat in milk products. Pet food will kill your pet...full of awful stuff and fattening.
Penelope will be fit and trim if she eats what skunks ought to eat.
One more thing where skunk have a deficiency is vitamin D. They get none to little sunshine. You ought to consider using a UVB light. Purchase one where reptile supplies are sold.