Natural pet food plus essential vitamins and minerals. Veterinarian recommended. Clinically Proven: to provide complete, balanced nutrition; to maintain ideal body weight; to maintain lean muscle and avoid excess body fat; antioxidants to maintain cellular health because they fight free radicals. Nature's Best is a clinically proven food developed to provide your pet complete, balanced nutrition. I'm Kim Friesen, PhD and a Pet Nutritionist, one of the developers of Science Diet Nature's Best pet food. I've cared for animals my entire life, starting with daily chores on my family's farm in rural Nebraska. My family and I rescued our Golden Retriever, Penny, from a local shelter in Kansas. Like you, I am committed to feeding my pets the best nutrition available. If you read packages, you know how difficult it is to choose the best natural pet food. Many claim to provide a variety of benefits, but Nature's Best is different. It is the first and only natural pet food clinically proven to provide complete, balanced nutrition to help your pet maintain ideal body weight and maintain lean muscle. And like the natural food you eat, Nature's Best is not only healthful, it tastes great, too. Hill's is committed to the lifelong health of pets; that's why Hill's employs more than 150 veterinarians, food scientists, technicians and PhD nutritionist. Hill's is so sure Nature's Best will make a difference to your pet's health. Thanks for being a pet owner who cares and for choosing Nature's Best brand pet food. - Kim Friesen, PhD, Pet Nutritionist. Premium Chicken: Benefit: Fresh chicken builds and maintains lean muscle. It's a high-quality, highly digestible protein without added hormones and steroids. Source: Chicken from USDA-inspected facilities. Chicken Meal: Benefit: Chicken meal benefits your dog's skin, coat and muscle. It's a great source of protein with essential fatty acid. Source: Chickens from USDA-inspected facilities. Soybean Meal: Benefit: When combined with meat protein soybean meal helps maintain lean muscle. It's a high-quality, highly digestible protein with essential amino acids. Source: Grown by farmers in North America. Egg: Benefit: Egg helps build lean muscle and a shiny coat. It has the highest essential amino acid content of all naturally-occurring protein sources. Source: Collected from USDA-inspected facilities. Wholesome Grains: Benefit: Brown rice, whole wheat, oats and barley are carbohydrate sources for energy. These wholesome grains are also a source of fiber, vitamins and fatty acids. Source: Whole grains grown on North American farms. Carrots, Peas & Broccoli: Benefit: Carrots, peas and broccoli help the immune system as a natural source of vitamins, minerals, dietary fiber, antioxidants and phytonutrients. Source: Farm grown in North America and Europe. No added sulfites. Apples & Cranberries: Benefit: As natural sources of antioxidants like vitamin C + E, apples and cranberries support your pet's immune system on a cellular level. Source: Farm grown in the United States. No added sulfites. Flaxseed: Benefit: Flaxseed gives your dog a lustrous coat and soft skin with essential amino acids and vitamin E. Source: Grown by farmers in North America. Soybean Oil: Benefit: Soybean oil gives your dog soft skin and a lustrous coat. It's high in essential fatty acid. Source: Grown by farmers in North America. Vitamins E & C: Benefit: The antioxidant power of vitamins E &C promote body-wide cellular health. Source: Processed in Europe and the US. US Vet's no. 1 choice: More US veterinarians recommend and feed Science Diet brand pet food than any other brand. AAFCO Statement: Animal feeding tests using AAFCO procedures substantiate that Science Diet Nature's Best Chicken & Brown Rice Dinner Adult Dog Food provides complete and balanced nutrition for maintenance of adult dogs. Made in USA.