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 As your kitten grows, you will need to put more litter in the pan. 2  By the time your kitten is six months old, you should start placing two to three inches of litter in the pan. 3  It's best if you have a house with tile or wood flooring because that way the pee can be mopped up. To clean the litter box, scoop the waste out of the box, place it in a small baggie, close the bag, and throw it away. 2  You can leave a small bit of feces in the litter box (changing it frequently) during the first few weeks. 3  This helps the kitten recognize what the box is for.