My dog has dandruff. What can I do?

All of the foods you mentioned are high quality EXCEPT Nutro. It is nowhere near the quality of the others you mentioned. It contains corn gluten, wheat, soy and menadione. None of the others use any of these ingredients. Nutro does not use the high levels of Omega 3 fatty acids that the others use. EVO, Blue Wilderness, HALO Spot's Stew and Taste of the Wild are all very good foods. Nutro is not in the same cl.