Most protein foods of animal origin such as meat, poultry, fish, eggs, cheese and milk include all of the essential amino acids and are consequently called complete proteins. (fitnessandpower.com)
This product is free from ingredients and processing aids derived from animal origin. (hersheys.com)
They are found in most protein sources, particularly those of animal origin like meat, poultry, eggs, dairy and fish. (healthline.com)