Blue Buffalo Life Protection Adult Dry Dog Food vs Purina ONE + Plus Digestive Health

Both are chicken-and-rice adult kibbles with no corn, wheat or soy, and both rate well with owners. Blue Buffalo Life Protection stands out for its LifeSource Bits and the breadth of its vitamin and mineral panel, and it has a much larger review base behind it. Purina ONE Plus targets sensitive stomachs with added probiotics and a SmartBlend of easily digested ingredients, and it comes in a bigger bag. Pick Blue Buffalo for a dog that does fine on a standard adult formula and for the brand's long track record. Pick Purina ONE if your dog has a touchy stomach or you want a larger bag.

• Choose the Blue Buffalo Life Protection if you want a widely reviewed adult chicken-and-rice kibble with antioxidant-rich LifeSource Bits and no poultry by-product meal.
• Choose the Purina ONE Plus if your dog has a sensitive stomach and you want a probiotic-enhanced, highly digestible chicken-and-rice kibble in a larger bag.