Food combining (also known as trophology) is a term for a nutritional approach that advocates specific combinations of foods as central to good health and weight loss (such as not mixing carbohydrate-rich foods and protein-rich foods in the same meal). It has been described by medical health experts as a "pseudo-scientific system" and quackery.
The best-known food-combining diet is the Hay Diet; Hay lost 30 pounds in 3 months when he implemented his research. One randomized controlled trial of food combining has been performed, and found no evidence that food combining was any more effective than a "balanced" diet in promoting weight loss.
- Raso, Jack. (1993). Vitalistic Gurus and Their Legacies. In Stephen Barrett. The Health Robbers: A Close Look at Quackery in America. Prometheus Books. pp. 236-240. ISBN 0-87975-855-4
- Golay A, Allaz A, Ybarra J, Bianchi P, Saraiva S, Mensi N, Gomis R, de Tonnac N (2000). "Similar weight loss with low-energy food combining or balanced diets". Int. J. Obes. Relat. Metab. Disord. 24 (4): 492–496. doi:10.1038/sj.ijo.0801185. PMID 10805507.