Small dogs have very distinct physiological traits such as jaw size, bone structure, digestive systems, and high energy requirements. Typically they live longer than large dogs, and are fussy eaters. Most of the growth of a small-sized dog occurs in the first 6 months of their life. After 10 months, their birth weight has multiplied by 20! Royal Canin MINI formulas are designed to meet their specific needs at every stage of their life.