Editor ingredient insight
Purina Pro Plan Bright Mind Adult 7+ Chicken & Rice starts with chicken, poultry by-product meal, and rice, then adds whole corn, corn protein meal, whole wheat, and vegetable oil as an MCT source. I would treat it as a pragmatic senior food for palatability, vitality positioning, and joint context rather than ingredient prestige. It discloses 29% protein, 14% fat, 3,791 kcal/kg, 1.0%/0.8% calcium/phosphorus, 0.3% EPA/DHA, 500 mg/kg glucosamine, and 500 IU/kg vitamin E, so it is not a low-protein senior formula. I would avoid it for by-product, corn protein, wheat, egg, fish meal, beef fat, or garlic-oil avoidance, and for meat-density expectations.
Logic-based verdict
This food can stay in comparison, but ingredient quality still needs a more conservative read.