Discover the brilliance of Nature and Science with SMARTBLEND™ Our expert Nutritionists have discovered which of nature's ingredients work best with your pet's body, to help unlock his true potential. SmartBlend™ combines these ingredients into concentrated, nutrient-rich morsels with enticing taste and texture, to help you do the right thing to nourish your pet's health. Because more important than how we make Purina ONE® SmartBlend™ formulas... is how they make your pet feel