http://www.theguardian.com/global-development/2015/feb/09/peru-maca-indigenous-root-china-biopiracy
What does Chinese demand mean for Peru’s maca boom

Sales of a Peruvian root called ‘maca’ have boomed due to an unprecedented Chinese demand. The root is said to boost fertility, increase energy, and even have an aphrodisiac effect. Despite the increase in price many worry it’s being smuggled out of country.