Cat Nutrition Tips: Proteins
Proteins are the basic building blocks for cells, tissues, organs, enzymes, hormones and antibodies, and are essential for growth, maintenance, reproduction and repair. Proteins can be obtained from a number of sources. Animal-based proteins have complete amino acid profiles. (Please note: Do not give your pet raw eggs.) Protein is also found in vegetables, cereals and soy, but these are considered incomplete proteins.
Source : https://www.aspca.org/