Addressing food waste and loss in the Nigerian food supply chain: Use of Lean Six Sigma and Double-Loop Learning

Food waste and loss (FWL), although a growing problem in the world, there is limited research especially from the developing country context. In this research, we investigate FWL in the processing and distribution stage of the Nigerian Food Supply Chain (FSC). We propose the use of Lean Six Sigma (LSS) tools coupled with Double Loop Learning (DLL) to reduce FWL. Using case study strategy we explored the perception, understanding and experience of the FSC stakeholders on the effectiveness of LSS tools and DLL to reduce FWL in two case companies. We found awareness, identification of root causes of FWL and taking responsibility as the major steps adopted by the case companies to reduce FWL. We provide insights regarding how DMAIC could support Organisational Learning Theory (OLT) while solving FWL issues.