The absence in the diet of any of these essential amino acids stops the synthesis of life-sustaining proteins.The animal then uses its natural proteins to synthesise what it needs, which can gradually puts its survival in danger.
Essential amino acids* cannot be synthesised by the body and must therefore be provided by the food in appropriate quantities.
Essential amino acids are aptly named, since, without them, the body cannot use natural protein to synthesise what it needs.
The growth of kittens and puppies will be slowed down, while essential functions such as nitrogenous waste elimination and haemoglobin synthesis will be disrupted in adult animals.
Dietary proteins of ‘high biological value’ are those that combine good digestibility and a high content of essential amino acids, such as casein from milk, egg, meat and fish proteins and soy isolates.
*Arginine, Histidine, Isoleucine, Leucine, Lysine, Methionine, Phenylalanine,Taurine (cats only), Threonine, Tryptophan, Valine.