The Puppy and the Dog They have been man’s companion through the ages and adapted to their owners, but they have their own behavioural and nutritional demands. Knowing and respectingthem will guarantee their health and well-being.

The cat’s feline nature is always a matter of fascination.He adapts with apparent ease to daily life, and yet he has behavioural and nutritional requirements of his own. Knowing them and respecting them will guarantee his well-being and his health.

Because of its composition, a Royal Canin Health Nutrition food provides all essential nutrients measured out with utmost precision in order to contribute every day and on a long-term basis to the well-being and health of every animal, according to his age, his size, his physiological condition and his breed.

Innovation for the sake of dogs and cats’ health. For over 40 years, Royal Canin has worked with breeder partners and veterinary nutritionists to go ever further into innovation and precision to enable us to formulate nutritional solutions which perfectly meet dogs and cats’ real needs.



Arginine is an essential amino acid for cats and dogs. Newborn puppies fed with mothers’ milk with an arginine deficiency soon develop cataracts that lead to blindness.Arginine is also a nitric oxide (NO) precursor, which relaxes the smooth fibers of the blood vessels. Arginine supplementation may accordingly have beneficial effects in case of heart or kidney disease.

A little background information

Arginine plays a part in the synthesis of urea from ammoniac. In the absence of arginine in the diet, in a few hours cats develop clinical signs of ammoniac intoxication (hyperammoniemia), with vomiting, hypersalivation and nerve problems. This deficiency may lead to death if it is not corrected rapidly.

Its role in the body

It has been shown that arginine reduces the respiratory problems caused by the increased production of CO2 during effort in humans suffering from severe chronic heart failure. Arginine also plays a role in the immune mechanisms.

Natural sources

Arginine is abundant in animal tissue, such as muscle,skin and hair. Gelatine is fairly rich in arginine.