The very best thing you can do for your kitten is to get him off the dry food all together and onto a good canned food. Cats need their fluids with their food, not beside their food.
This is a wonderful site to read. It is an eye opener. www.catinfo.org
Of course vets and their techs will tell you their food is the best thing going. They make money off of every bag/can they sell. Cats are obligate carnivours. They need meat. Not veggies, not corn (we can't digest corn so how can cats?), not grains.
Ooops, sorry. Forgot to give you some names of foods. Wellness kitten is a good all round food to give your little one a good start. He can then graduate to Wellness grain free, Natural Balance, Innova Evo, etc. If you real labels you can quickly tell what foods are good and which ones aren't so good.