“…What began with a shared curiosity as to how this substance had transcended its niche appeal in bodybuilding subcultures (Atkinson, 2007) became an interest in the 'more-than-human' (Braun, 2005;Whatmore, 2006) embodiment of whey protein that has taken us out onto industrial dairy farms, through high street stores and kitchen cabinets stocked with whey powder, into the messy processes of human digestion, and out, by means of excretion, into wastewater systems. Along the way, we have been impelled to consider connections among the contradictory 'binge and purge' logic of 'agrofood capitalism' (Guthman, 2015(Guthman, : 2523, the uneven socioeconomic contexts in which nutritional supplements are manufactured and then marketed as vital for health (Abrahamsson et al, 2015), the slippery cultural distinction between where food stops and waste begins (Coles and Hallett, 2013;Evans et al, 2013), the multispecies composition of 'human' embodiment (Haraway, 2007;Kirksey and Helmreich, 2010), the 'biocultural' and creative character of proteins (Frost, 2016;Myers, 2015) and political ecological relations between bodies and health (Guthman, 2012;Guthman and Mansfield, 2012).…”