Proteins are the basic building blocks for cells, tissues, organs, enzymes, hormones and antibodies, and are important for growth, maintenance, reproduction and repair of your cat. Proteins can be obtained from a number of sources, like fish.
Proteins also have building blocks called amino acids. They are divided into essential non-essential amino acids. They cannot be naturally produced by your cat. The essential amino acid, taurine, prevents eye and heart disease and improves reproduction, foetal growth and survival. It is found in fish, among other foods of animal origin.