Before INCAP 8 can be made in large amounts at a price that everyone can afford, answers to many problems must be found. One of these is that of the amino acids. Among the many amino acids that have been discovered since work began in this field over a century ago, only eight seem to be needed by human beings. All of these amino acids must be present at the same time and in certain amounts if the protein is to serve the body as it should. But what are the correct amounts of amino acids? No one yet knows but studies are being made in order to find the correct balance.