Nutri-Vet Milk Replacement powder contains essential amounts of protein, fat and carbohydrates plus vitamins, minerals and amino acids that newborn puppies need. It can also be used as a nutritional supplement for pregnant and nursing dogs, convalescing or senior dogs. If possible, puppies should nurse from their mother for the first two days of their lives to receive nutrient rich colostrum. Mothers colostrum helps strengthen the immune system and contains growth factors to stimulate protein synthesis, fat utilization and cell growth. Key Benefits Crafted with whey protein concentrate which offers a great source of essential amino acids to help support healthy muscles, skin and more.v Helps newborn puppies grow and gain weight. Contains Nutri-Vet's Opti-Gut?a natural recipe that features probiotics to help encourage healthy digestion, growth and development. Suitable for puppies and pregnant, nursing, convalescing or senior dogs. Features Whey protein concentrate is a source of essential amino acids that are the building blocks for healthy muscles, skin and other body tissue. Readily accepted by newborn puppies, and produces excellent growth rates and weight gain. Contains Opti-Gut, our natural recipe, complete with probiotics, for supporting a healthy gut, digestion, growth and development. Made in the USA with globally sourced ingredients.