A particular concern with quinoa, given its narrow (native) growing area, and the poverty endemic to that area, is that worldwide demand for the crop has out-priced its growers' and their communities' ability to afford it in order to feed themselves . A select few brands set aside some of each harvest specifically for that purpose (and also put some of their profits back into improving the farms, sending the farmers'…
[1] http://marcfbellemare.com/wordpress/2013/01/quinoa-nonsense-...
[2] http://ain-bolivia.org/2011/05/bolivian-quinoa-questions-pro...