This paper reports on a systematic review of grocery store interventions undertaken to evaluate their effectiveness in changing food purchasing behaviours, and to examine whether this effectiveness varied with intervention components, setting, or socioeconomic status. This is the first paper to synthesise evidence from randomised controlled trials (RCTs) in grocery stores across a wide range of intervention types.

UK charity Oxfam has launched a new campaign, Behind the Barcodes, to highlight human suffering in the food supply chain. Oxfam has scored the major UK supermarkets on their human rights policies in the categories of transparency, workers, farmers and women, and is encouraging shoppers to contact supermarkets to voice their concerns.

A podcast by Planet Money discusses price fixing in the US chicken industry.

A recent paper examines the connections between food system changes and diet and nutrition changes in Latin America and the Caribbean. It finds that food systems are changing to include more processed food, more and more easily available meat, dairy and out-of-season foods, cheaper food and a rise in supermarkets. It concludes that, while some Latin American countries are leaders on interventions to change demand (such as by introducing taxes on sugary beverages or regulating the advertising of unhealthy food), there is a long way to go, and that a change towards healthier food systems will require introducing incentives for companies to market healthy foods, driven by consumer demand.

US grocers focus more on donating and recycling food waste than on preventing it, reports the Centre for Biological Diversity. The report scored 10 US grocery chains and the UK supermarket Tesco on food waste reduction commitments, policies and actions.

Large, powerful companies control much of the US food supply chain, with detrimental effects on consumer choice, food safety and food system resilience, according to a recent paper by researchers from NGO Food & Water Watch. The paper discusses the current “nearly unprecedented wave of food megamergers”, impacts on consumers of grocery consolidation and different types of mergers throughout the food supply chain.

UK supermarket chain Sainsbury’s has agreed to buy Asda from US supermarket Walmart. Together, Sainsbury’s and Asda will have a market share of 31% of the UK grocery sector, ahead of rival Tesco. The supermarkets claim that the merger will allow them to lower prices by 10% on many items.

UK charity WRAP has launched the UK Plastics Pact, a voluntary scheme which brings together businesses responsible for 80% of the plastic packaging on products sold in UK supermarkets. The pact aims to make 100% of plastic packaging reusable, recyclable or compostable by 2025, among other goals.

Walmart has developed a machine learning tool to predict when fruit and vegetables will spoil and make supply chains less wasteful.