Health effects of chocolate no medical or regulatory authority has approved any health claim. "Theobroma cacao", the cacao tree, produces seeds containing flavanols. The seeds have been used to make beverages for some 2000 years in Aztec, Olmec, and Maya civilizations in central and south America. The drinks were ascribed a wide variety of curative and stimulant properties, unsupported by experimental evidence. In the 19th century, chocolate as a solid was invented, and milk and sugar were added to create milk chocolate, high in fat and sugar. Doubtful research, sometimes funded by the chocolate industry, has at times made suggestions of possible health benefits
Moniliophthora perniciosa cacao beans annually. "T. cacao" L. is an understorey tropical plant, and the understorey growth of cacao helps to preserve habitat for numerous animal and bird species in these regions. With the production losses associated with WBD, tropical landowners are forced to convert their land to other production systems that usually require the destruction of the forest cover. WBD does not only affect the supply of cacao, but also largely impacts the conservation of tropical environment where cacao is grown. Moniliophthora perniciosa Moniliophthora perniciosa (previously "Crinipellis perniciosa") is a fungus that causes "witches' broom disease" (WBD) of the cocoa tree