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
Cabécar people are among the tallest trees often found in Cabécar tropical home gardens. Lower strata include permanent crops such as coffee ("Coffea arabica") and cacao ("Theobroma cacao"). The lowest stratum is characterized by medicinal plants, shrubs, and tubers, including chili pepper ("Capsicum annuum"), manioc ("Manihot esculenta"), and tiquisque ("Xanthosoma violaceum"). The Cabécar maintain their tropical home gardens by removing undesired underbrush to allow for growth of wild species that can also be harvested to supplement Cabécar everyday needs. Cabécar subsistence farmers practice rotating slash-and-burn agriculture for basic food requirements. This technique is employed during the driest month to clear dense underbrush