Society determines FED. Human institutions drive food, ecology and diet from supply chains to governance. Society is also about people, how they think, behave and their emotional responses. Feeding everyone needs...
Solutions within society
Solutions to feeding everyone have to leverage and even disrupt society with all its psychological and institutional complexity. Science is the easy part. The real inspiration is needed to tackle the man-made institutions that can and perhaps should be replaced, restructured, or reformed. This will need courage, care, and a healthy supply of evidence.
Be bold and throw your ideas into the real world of people with all their wants, needs and constraints.