KMR Kitten Milk Replacer Powder (12 oz) Pet Ag KMR is a milk replacer for kittens that gives extra nutrition and temporary immunity against some diseases. It closely matches mother's milk in protein and energy for a healthier kitten. Recommended as a food source for orphaned or rejected kittens or those nursing, but needing supplemental feeding. Also recommended for growing kittens or adult cats that are stressed and require a source of highly digestible nutrients. Powdered form, just mix with warm water.