having a favorite brand [8]. A search of PubMed for the words 'cannabis advertising marketing' produced just eight relevant studies, showing how the cannabis industry's marketing activities have thus far been left out of knowledge chain activities.Finally, in the political chain, cannabis firms are indeed active players in the United States. From 2016 to 2019 cannabis growers and sellers spent nearly US$16 million on lobbying in state legislatures [9]. They spent more than US$6 million on 95 lobbyists at the federal level in Washington, DC in 2019, and another US$4 million in 2020 [10]. Meanwhile, alcohol conglomerate Constellation Brands reportedly has three lobbyists of its own working on federal cannabis policy, and Anheuser-Busch, the alcohol giant that on its own spent nearly $11 million on federal lobbying in 2019 and 2020 [11], disclosed in a federal lobbying report that it, too, had assigned a lobbyist to monitor government actions on cannabis and CBD in food products [12].