Puppy food is higher in protein and vitamin & mineral content and should be given to a Lab or labradoodle for about 1 full year. This will ensure that the pup gets adequate nutrition as he grows.

Adult food can be given after a years time. I use a 30% protein food which can be found in higher quality foods.

A dog has a much more efficient metabolism than a human- and has a body temperature of 101.5 degrees. When puppies are born- their temperature will be lower than their 101.5 temperature.  They cannot regulate their temperatures and need their Mothers and littermates to keep them warm. An adult dog will have a temperature of 101.5, which is 2.9 degrees higher than that of a human! This is a huge difference and allows a dog to burn more calories through a higher thermogenic efficient temperature. A dog needs 30 calories per pound per day! An active or pregnant dog can require two to three times this amount! 

Dogs also require different nutritional needs than humans. While humans rely mostly on carbohydrates, a dogs diet should consist of mainly protein and fats. Fats contain 9 calories per gram while carbohydrates and proteins contain 4 calories per gram. Since a dog has a higher body temperature than a human, it is able to metabolize and burn calories much more efficiently than a human! This includes medications. Pound for pound, a dog would need a greater amount of a medication than a human who weighs more.