Abstract During the Covid-19 pandemic, migrant workers in the food supply chain (FSC) were deemed an essential workforce. At the same time, they were particularly exposed to risks as shown by Covid-19 outbreaks, for example in meat-processing plants. The pandemic has thus highlighted preexisting inequities related to precarious migrant labor in the FSC. We use the Covid-19 pandemic as a showcase to comparatively examine occupational safety and health (OSH) protection gaps for migrant workers in agriculture and meat-processing in Illinois/USA, the Netherlands, and North-Rhine Westphalia/Germany. We conducted harmonized policy analyses of OSH policies for migrant workers generally, and of pandemic measures specifically. The policy analysis was complemented by expert consultations. The Covid-19 syndemic has prompted OSH measures in horticulture and meat-processing. However, our analysis demonstrates the reliance of FSC industries on various precariously employed worker groups. Intersecting health-, work- and migration-related factors led to poor adaptation of policies for some of these groups, including instances where protective measures excluded them or exacerbated their marginalization. Our analysis shows how influence peddling prevents better protection of workers in some contexts. But it also identifies positive policy changes; for instance the prohibition of subcontracting in meat-processing in Germany. Across different contexts, agriculture remains problematic, with major evidence gaps on migrant workers’ conditions. Comprehensive improvements in the social and health protection of migrant workers in FSC industries will require tackling the structural causes of migrant workers’ exploitability, including low visibility, racial capitalism and cronyism; intersectoral action on OSH; stronger enforcement; and firewalling data exchange between OSH and immigration agencies.