WHO review: Coca not harmful, prohibition is

The consumption of the coca leaf in its raw form by millions daily across the Andes carries no significant risks, but official coca control strategies are associated with “substantial public health harms,” according to a review commissioned by the World Health Organization. Filter viewed an advance copy of the report that was distributed to members of the WHO’s Expert Committee on Drug Dependence (ECDD).

Coca, the mildly stimulating and medicinal leaf that is the base ingredient of cocaine, was banned globally by the UN in 1964 after its investigators claimed coca leaf chewing is “definitely harmful” and “the cause of racial degeneration of many population groups.” A WHO paper also described the use of the calcium-rich plant as “a social evil.”

But despite US-backed militarized efforts to eradicate coca leaf production in Colombia, Peru, Bolivia and Ecuador throughout the decades-long drug war, the consumption of the plant—which for many Indigenous communities holds profound spiritual value—has remained stubbornly prevalent, with production in Colombia at all-time highs.

“Research reviewed for this report did not reveal evidence of clinically meaningful public health harms associated with coca leaf use,” states the comprehensive scientific review commissioned by the ECDD. “The research record does, however, robustly document the substantial public health harms associated with coca control strategies at all scales.”