When dogs consume a diet of natural whole prey rather than processed dry foods, their pituitary gland does not have to work excessively to maintain hormonal balance. Their blood sugar levels also remain stable. The dogs' diet is intended to include fur and feathered prey as a source of natural fiber that promotes healthy digestion in the gut. The fur acts as a broom to sweep out sludge and other impurities that may be lodged in the gut. This is especially beneficial for dogs' anal glands, as the fur or feathers help to increase the bulk of their stool and assist them in expressing their glands themselves. Once the gut is cleansed, this process allows for better absorption and assimilation of essential nutrients.