Main article: Protein (nutrient) A complete protein (or whole protein) is a source of protein that contains an adequate proportion of all nine of the essential amino acids necessary for the dietary needs of humans or other animals.
Ethics is defined as a moral philosophy or code of morals practiced by a person or group of people. An example of ethics is a the code of conduct set by a business. the study of standards of conduct and moral judgment; moral philosophy. a treatise on this study.
It is therefore connected to Aristotle's other practical work, the Politics, which similarly aims at people becoming good. Ethics is about how individuals should best live, while the study of politics is from the perspective of a law-giver, looking at the good of a whole community.