Kevin Trudeau (/truːˈdoʊ/; born 1962 or 1963) is an American author, salesman, television personality, and convicted felon, known for promotion of his books and resulting legal cases involving the US Federal Trade Commission. His late-night  nfomercials, which promoted unsubstantiated health, diet, and financial advice, earned him a fortune but resulted in civil and criminal penalties for fraud, larceny, and contempt of court.