Our eight-month-old Standard, at 54 lbs, suffers us through the stinkiest night flatulence after he eats most canned dog foods. We avoid grains, especially corn and questionable additives. I cook boneless, skinless chicken breast, shred it and freeze it. He, Sammy, is doing very well on Gentle Giants kibble, Gentle Giants canned food and a bit of chicken to spice things up. The gas problem is gone except after he gulps down cat poop.