Future Food as an Optimization Problem: Balancing Nutrition, Sustainability, Justice, and Agency

Introduction: Future-food debates often frame innovation in terms of technological intensification, market substitution, and nutritional optimization. This paper argues that they must also address the organization of material dependence. Industrial food systems generate abundance and convenience, but they also externalize ecological harms, obscure labour relations, and distance consumers from the material conditions of nourishment. The central question is therefore how food provision can balance nutrition, ecological responsibility, social justice, feasibility, and materially engaged agency.

Methods: The paper applies a value-pluralist optimization framework to four pathways: (A) industrial market dependence, (B) ethical market consumption, (C) calibrated self-provisioning, and (D) complete autarky. These are assessed according to nutritional adequacy, environmental burden, labour requirements, dependence on opaque supply chains, preservation of modern capabilities, and opportunities for practical agency. The normative analysis is supported by data from a long-term Mediterranean agroecological case study of nutritional self-sufficiency.

Results: Industrial market dependence maximizes convenience while preserving structural opacity. Ethical consumption may reduce some harms but remains market-mediated. Complete autarky is rejected as practically and normatively sub-optimal, since it would sacrifice essential modern capabilities. Calibrated self-provisioning emerges as the strongest pathway: it combines direct food provision with selective reliance on tools, shared knowledge, and wider institutions. The case study shows that, under favourable Mediterranean conditions, complete nutritional self-sufficiency can be achieved on under 0.1 hectare, with modest training, about one day of labour per month, no synthetic chemicals, and compatibility with full-time employment. It also provides nutritional yield per area broadly comparable to conventional agriculture while generating substantially lower environmental burdens.

Conclusions: Sustainable food policy should redefine efficiency to include nutritional sufficiency, ecological burden, resilience, justice, and agency. Policy should support calibrated food self-provisioning where feasible through land access, agroecological training, shared tools, seed and compost infrastructures, water-sensitive regulation, and community-scale provisioning models.