Sometimes kittens can't get the nutrients they need from their mother's milk, but Breeder's Edge Foster Care Feline Milk Replacer has just what they need. With an effective combination of vitamins, minerals and amino acids, this exclusive formula has all they need for the first 35 days of their life. Bio-Mos promotes the growth of good bacteria to boost their natural defenses, IgY supports their immune system against disease, while Taurine helps with eye and heart health. It's also a great nutritional supplement for adult cats that need the extra nutrients.