A world without coffee is hard to imagine. At the turn of the century, humans consumed 2·25 billion cups of coffee a day globally, and its trade, consumption, and supply have steadily increased since. Coffee-drinking habits differ across the globe on the basis of trading history and cultural factors. Coffee culture is intricately linked to customs, rituals, lifestyles, social interactions and positioning, trade, employment, poverty, inequalities, ecosystem decline, and tourism. This Comment will briefly explore the global coffee-market chain, reviewing some of the health and ecological implications of this process and advocating for consumer-led strategies within university settings to improve planetary health.