Evanger’s Duck & Sweet Potato Dinner is formulated to meet the nutritional levels established by the AAFCO nutrient profiles for all life stages. Puppies, pregnant and nursing dogs may require 2-3 times above amounts, and reduced for less active or older dogs. Amount of food your dog requires depends on activity, age, environment and breed. Duck & Sweet Potato Dinner is certified Kosher for Passover by the cRc.