Food loss and waste pose significant challenges in both industrial and agricultural food production sectors. In recent decades, their environmental and economic impacts have intensified due to increasing food demand, heightened production activities, and varying standards across the global supply chain. Specifically, the complexities surrounding the causes of food waste at the retail and household levels persist as a multifaceted issue, constituting a crucial topic in food policy. This is driven by various interplaying aspects, such as food security, safety, quality, and environmental sustainability, including greenhouse gas emissions from decaying food, water pollution from leaching, and the proliferation of landfills. Additionally, consumer concerns and financial losses exacerbate the urgency of addressing this issue. Therefore, this paper aims to highlight these complexities as a focal point of its discussion by the examination of interconnected causes of food waste and potential solutions and initiatives to reduce food waste occurring at these critical points in the food supply chain. Less attention has been paid to retail and foodservice than production and consumer sectors, and this review specifically focuses on these industries, where food waste is more important than food loss. This review also looks at examples in developing countries which have received less attention until now. We believe that because of the complexity of the process to reduce food waste across the food supply chain, and the many stakeholders involved, the goal of a 50% reduction by 2030 set by the United Nations will be difficult to achieve on time.

Online food delivery (OFD) platforms offer consumers a convenient and fast delivery service of foods and drinks sourced from foodservice partners (e.g. restaurants, quick service restaurants). There is a need to assess the impact of this emergent segment of the foodservice sector on diet and diet-related health. The aim of this narrative review was to describe the OFD sector in Australia, its use and identify potential ways to include OFD platforms in existing public health nutrition policy.
A search was conducted in peer-reviewed and grey literature. Sources were analysed and synthesised to report the characteristics of OFD platforms, delivery process, users and potential drivers of usage. The aim and scope of public health nutrition policies were analysed to identify ways of including OFD platforms.
Australia.
General population.
There are three main operators with 9000-16 000 foodservice partners based predominantly in the main cities of Australia. OFD revenue has grown by 72 % in the last 5 years and is predicted to increase driven by usage by working adults with high disposable income who demand convenience. Current policies and initiatives aimed at manufacturers, retailers and foodservice outlets do not specifically regulate OFD platforms, although there is scope for these to be extended to such platforms.
OFD platforms are disruptors of the foodservice sector. Innovative and consistent health policy options that target the unique challenges and opportunities posed by OFD platforms are required to limit the potentially negative impact of OFD platforms on diet and diet-related health.