It's nice that there are so many choices of cat litter to choose from except when you find one you like and then they come up with a new one. It used to be clay and now you have the choice of paper, corn, wheat, sawdust, citrus and walnut. The Littermaid Premium Walnut litter is made from the shells and not the nuts, but there is a chance of nut pieces for those of you who have nut allergies. Littermaid Premium Walnut litter is great for kittens, because they are likely to sample most litters when they are young. Most litters have some dust and will be tracked around the house but I didn't notice any dust with the Littermaid Premium Walnut litter, and like most litters I did notice some granules tracked around the house. The Littermaid clumps great and as long as you stay on top of removing the clumps daily and replacing it with fresh litter it will last longer. The Littermaid Premium Walnut litter works great in the odor control area, it has a natural smell that I didn't mind at all. The Littermaid Premium Walnut litter runs about a dollar a pound which isn't bad when you consider all of the benefits.