As with all pet foods, feeding instructions are a guide only.
All animals caloric requirements depend upon their activity levels and their specific metabolism. As pets age their activity will be reduced compared to their younger sprightly days and therefore do not burn off the calories at the rate they used to and should therefore their caloric intake should be less. Much as we human animals, when we are active our bodies require additional calories to provide fuel for the energy we burn and less if or when we lead a more sedate lifestyle.
Based on feeding guidelines, the quantity of food should be moderately increased if your pet is very active and not maintaining weight, correspondingly, feeding should be moderately reduced if they have a tendency to become portly, until they reach the ideal framework for their size and breed.
Because Timberwolf and Serengeti diets are nutritionally dense your pet will still absorb the required wholesome nutrition their bodies require for optimum health.