Royal Canin Light Weight Care not only contains all the nutrients needed for good health. They also have an adapted content of protein, fat and calories to promote a healthy weight and maintain muscle.Royal Canin uses a carefully optimised combination of insoluble and soluble dietary fibre to help keep your cat feeling full and satisfied. The food contains, L-carnitine, which is linked to healthy fat metabolism. When reducing the total number of calories, the amount of protein the cat consumes is also often reduced. This can lead to your cat losing muscle instead of fat. All Royal Canin's diets contain highly digestible proteins. An optimal combination of soluble and insoluble dietary fibre, including psyllium, helps keep your cat feeling full. Good news for cats on a diet. The food also ensures regular intestinal transit and helps maintain a healthy intestinal flora in the colon. Research shows that supplementing with L-carnitine can make it easier for overweight cats to lose weight.