Research on food security and resilience has focused primarily on improving production of traditional crops and livestock (agriculture, crop science, genetics etc.). However significant losses occur after this initial production phase during storage, transportation, processing and preparation. Whilst increased competition and margin pressures within this sector are constant drivers for efficiency improvements and waste reduction, they can also have unintended consequences on the resilience of food manufacturers and their supply chains. This paper examines how current trends and initiatives could impact the resilience of the UK food manufacturing sector and their wider impacts on UK food security.