Monopoly can not exist in a free market without government intervention (the government being, itself, a monopoly of legal force). Witness how the American Dietetics Association is attempting to gain a government-granted monopoly over nutritional advice counseling by applying for government certification protection through the US Patent Office, courtesy of a Forbes columnist:
The Association document linked above minces no words about its purpose. It opens: “This Backgrounder highlights the significant competitive threat Registered Dietitians. . . face in the provision of various dietetic and nutrition services. . . . We must be aware that existing legal and regulatory constraints on practice are unlikely to prevent robust, broad competition in these growth areas.” [Emphasis added.]
A conspiracy to prevent you from accessing alternative viewpoints on nutrition in the name of preventing competition and artificially raising prices. In other words, the ADA /AND is trying to keep you fat to keep its members’ wallets fat.
A House Rises 