Kittens grow in 2 unique phases. In the 2nd phase (4 to 12 months) the kitten's growth slows down. Precise nutrition is vital to ensure she is getting the proper support during this critical growth phase. KITTEN is for kittens in the 2nd growth stage (4 to 12 months). KITTEN maintains digestive healthy while supporting the immune system. It provides 100% complete and balanced nutrition while promoting healthy growth.