Kittens grow in 2 unique phases. In the 1st phase (weaning to 4 months) the babycat's immune system is fragile. The transition from milk to solid food is a delicate time and can create digestive issues for the babycat. Proper nutrition is essential in helping babycats get off to a healthy start. MOTHER & BABYCAT is for Queens during gestation & lactation and for kittens in the 1st growth stage (weaning to 4 months). It provides 100% complete and balanced nutrition while supporting immune system health and promoting digestive health.