Essential fatty acids (like omega 3 and omega 6 fatty acids) and fat soluble vitamins (Vitamin A, Vitamin E, Vitamin, D, Vitamin K). The plain fat is a nutrient too.
Kittens, generally, can begin to use a litter box at about four weeks of age, and a kitten being raised without its mother or adult cat will take slightly longer to litter train; so, keep this in mind when you begin the task of litter training your kitten. - Place the kitten in the box 1/2 hour after play or meals.
1 Most kittens train themselves with a litter box with a little nudge from us. 2  If you have the kittens in a large area, you may wish to provide more than one box so 'accidents' don't happen. 3  Type of litter: Do not use clumping litter with kittens under 4 months. 4  Litter can get into the eyes and cause infections. A kitten may need hand raising because the mother has died, become ill, rejected the kittens or abandoned them. 2  In the case of feral cats, the kittens may have been taken from the mother for taming. 3  Kittens should not be taken from the mother before 5 to 6 weeks of age if possible.