While certain grains have some useful nutrition if you have to stay grain inclusive, as Marie said, they have no real need for them. Dogs derive the most energy and benefit from meat protein.
That said:
Dani eats grain free because I prefer to have as high of protein content as possible. I’d feed raw if my life allowed for it, but atm, it doesn’t. When she starts competing I will adjust my life and go raw. She also gets about 25-40% of her daily intake via dehydrated or canned, both of which tend towards much higher protein to carb ratios
Liesl however eats grain inclusive because she has some food allergy/intolerance whatever you feel like calling it that comes from grain free (legumes, mainly) so she eats 50-60% of her diet as canned and dehydrated. Grain inclusive is almost always lower protein than grain free
