A recent study has shown that leaf protein biorefineries could potentially meet the world's protein needs within one to two years during a global food crisis. By extracting protein-rich juice from green leaves and converting plant fiber into sugar, the process is both affordable and scalable. However, the main challenge lies in the availability of raw materials, with a substantial increase in legume biomass cultivation needed to meet global protein requirements.

Despite this hurdle, the sector of leaf protein production is already gaining traction, with companies such as Leaft Foods, Day 8, and The Leaf Protein Co. working on commercializing leaf-derived ingredients. However, taste remains an issue to overcome, as the naturally bitter and grassy flavor of leaf protein concentrate may deter consumer acceptance. Further research into processing techniques that can enhance the taste without compromising protein yields is necessary for the widespread adoption of leaf protein as a viable food source.