The merger of the world's two largest beer manufacturers "represents a major threat to global health, to which researchers, funders and regulators must respond more effectively," warn global health experts in The BMJ this week.
Of particular concern are the health implications for the growing epidemic of alcohol related harm across low and middle income countries, they say.
Last month, it was announced that Belgium based Anheuser-Busch InBev (AB InBev) and London based SABMiller have agreed in principle to merge.