Through advanced computational simulations and multidisciplinary expertise spanning nutrition, agriculture, economics, environmental science, and justice, the Commission reveals the profound impact that current food systems have on planetary health. Food production accounts for nearly 30% of global greenhouse gas emissions, outstripping fossil fuel use in some regions as the dominant source of environmental degradation. The report elucidates that food systems are a principal catalyst for the transgression of five critical planetary boundaries, including climate change, biodiversity loss, freshwater depletion, land use shifts, and nutrient pollution.

Despite the world’s adequate food calorie production to nourish its population, nearly half of humanity—about 3.7 billion people—lack consistent access to nutritious food, fair labor remuneration, and safe environments. This stark inequity underscores the social justice dimension of food systems transformation, one repeatedly emphasized in the report. Millions of agricultural workers live under hazardous conditions, with women especially burdened by wage disparities and limited participation in decision-making, which exacerbates systemic inequalities.

Central to this transformative framework is the Planetary Health Diet (PHD), an evidence-based, culturally adaptable diet characterized by a rich intake of minimally processed plant foods, complemented by moderate consumption of animal-sourced products. The PHD’s nutritional architecture recommends daily servings of whole grains, fruits, vegetables, nuts, and legumes, alongside weekly portions of red meat, poultry, fish, eggs, and dairy, all strategically balanced to ensure adequate intake of vital micronutrients. Epidemiological modeling indicates that adherence to this dietary pattern can reduce premature mortality risk by 27%, potentially preventing 15 million early deaths annually worldwide by mitigating chronic illnesses such as type 2 diabetes, cardiovascular diseases, cancer, and neurodegenerative disorders.

Notably, the PHD framework recognizes the heterogeneity of cultural dietary practices and nutritional requirements across life stages and geographies, advocating flexible applications tailored to local contexts. Supplemental interventions such as fortification and supplementation are highlighted to bridge nutritional gaps, particularly for vulnerable populations including pregnant women and children. Environmental benefits of adopting the PHD are substantial: a global shift toward this diet could reduce food-related carbon emissions by over 15%, a figure that rises above 20% when combined with halving food loss and waste and adopting regenerative agricultural methods.

The food system is a complex network encompassing production, processing, distribution, consumption, governance, and policy. The Commission delineates that meat production, methane emissions from rice cultivation, and land-use changes such as deforestation are dominant contributors to the sector’s environmental footprint. Despite this, the report underscores the immense untapped potential of food systems to drive positive change. Transitioning to sustainable farming practices enhances soil health, conserves biodiversity, optimizes water use, and can curb greenhouse gases significantly. Concomitantly, dietary shifts reduce pressures from resource-intensive livestock operations, creating synergies between human and planetary health.

Addressing inequities within global food systems emerges as a non-negotiable element of sustainable transformation. The analysis reveals that the wealthiest 30% of the global population is responsible for roughly 70% of food system–related environmental degradation, while large swaths of humanity struggle with food insecurity, poverty wages, and unsafe living conditions. This imbalance demands policies promoting equitable access to healthful diets and fair labor conditions, alongside the empowerment of marginalized communities including smallholder farmers, indigenous populations, and women.

Projections towards 2050 envision a transformative scenario in which a full embrace of the Planetary Health Diet combined with aggressive climate mitigation across all sectors slashes greenhouse gas emissions from food systems by more than 60%. This scenario also forecasts a 7% reduction in agricultural land use, unlocking space for biodiversity conservation and ecosystem restoration. Economic shifts accompanying these changes imply a decline in labor demand within livestock sectors but growth in sustainable plant-based agriculture, necessitating robust worker transition policies and social protections.

Current hidden costs of food systems—estimated at an astronomical $15 trillion annually through health burdens and environmental damages—offer a stark economic rationale for urgent overhaul. Investments ranging from $200 to $500 billion per year stand to deliver over $5 trillion in returns, including healthcare savings, productivity gains, and diminished environmental remediation costs. These funds can be mobilized by reorienting subsidies, leveraging climate and biodiversity financing mechanisms, and attracting private investment aligned with sustainability and equity goals, with low-income countries requiring international support through aid and debt relief.

The Commission outlines eight integrated pathways for transformation: embracing healthy, plant-rich diets aligned with PHD principles; safeguarding traditional diets that are nutritious and culturally meaningful; advancing agricultural practices that enhance productivity with minimal environmental harm; protecting critical habitats to preserve biodiversity; halving food loss and waste through supply chain innovations; securing fair labor rights and safe work environments; empowering marginalized communities in governance; and implementing social safety nets to alleviate poverty and reduce nutritional disparities.

Achieving this transformation hinges on forging robust collaborations among governments, private sectors, civil society, and consumers. Policies must be carefully sequenced and bundled to maximize impact, balancing incentives and disincentives through taxation, subsidies, supportive agricultural practices, and public programs such as school meals. Initiatives by EAT, mobilizing over 750 actions across diverse stakeholder communities, exemplify the collective engagement necessary to drive sustained progress.

Leading voices from the Commission stress that justice and equity are foundational prerequisites, not mere aspirations, for effective food system reform. Without confronting entrenched social and economic disparities, environmental and health gains will remain elusive. Ensuring that corporate interests do not eclipse public welfare is essential to maintaining integrity and inclusivity in decision-making processes.

In summary, the 2025 EAT-Lancet Commission report offers a scientifically rigorous and socially conscious blueprint for reshaping global food systems. The stakes could not be higher: the health of billions of people, the stability of ecosystems, and the resilience of the planet depend on bold, equitable, and coordinated action. As this evidence-informed framework permeates policy circles and public consciousness, it calls for a revolution in how humanity produces, consumes, and governs food to secure a sustainable and just future.

Subject of Research: People

Article Title: EAT-Lancet Commission on healthy, sustainable, and just food systems

News Publication Date: 2-Oct-2025

Web References: www.thelancet.com/commissions-do/EAT-2025

References: Food in the Anthropocene: the EAT-Lancet Commission on healthy diets from sustainable food systems, The Lancet, published 16 January 2019

Keywords: Health and medicine; Foods

This research comes at a time when the world faces unprecedented pressures from climate change and intensifying agricultural demands, both of which contribute significantly to biodiversity loss and ecosystem degradation. Land and water resources, essential components of functioning food systems, are increasingly compromised by unsustainable practices, undermining productivity and resilience. The innovative proposition to weave aquatic elements explicitly into agroecological principles signals a crucial step towards overcoming these challenges by harnessing the full spectrum of ecosystem services spanning terrestrial and aquatic domains.

One of the most striking contributions of the study is its thorough examination and subsequent rephrasing of six established agroecological principles, each adjusted to encompass water, aquatic foods, and the integration of land-to-seascapes. By doing so, the authors illuminate how traditional agroecology’s predominantly terrestrial focus inadvertently constrains the potential for holistic, landscape-scale interventions that can drive truly sustainable food system transformation. This paradigm shift recognizes that the hydrological connectivity and health of both freshwater and marine ecosystems are indispensable for food security and ecosystem resilience, especially in the face of climate variability.

Aquatic foods — encompassing fish, shellfish, algae, and other organisms harvested directly from aquatic environments — provide not only a rich source of nutrition but also possess a relatively low environmental footprint compared to many terrestrial animal protein sources. Despite their proven importance in global diets, aquatic foods have remained peripheral in agroecological discourse and practice. Freed and colleagues argue persuasively for their central inclusion, emphasizing that aquatic food systems, when managed according to ecological principles, can reduce pressures on land resources, bolster biodiversity, and enhance equitable access to nutrition.

Delving deeper into the integrated land–water nexus, the paper stresses that agricultural landscapes cannot be conceptualized in isolation from adjoining aquatic ecosystems. This includes rivers, wetlands, estuaries, and coastal zones, which collectively form dynamic systems that regulate water quality, nutrient cycling, and habitat connectivity. The authors advocate for embracing a ‘land-to-seascape’ approach, where management strategies are designed to optimize the symbiotic relationships between terrestrial and aquatic elements, thus enhancing overall ecosystem productivity and resilience.

A particularly compelling aspect involves the suggested cross-sectoral actions intended to leverage aquatic features within agroecosystems. For instance, restoring floodplains and wetlands adjacent to agricultural lands can serve multiple functions: improving water retention and filtration, providing habitat for aquatic species, and buffering against floods and droughts. Integrating aquaculture practices into diversified farming systems further exemplifies how aquatic and terrestrial food production can mutually reinforce sustainability objectives.

From a policy perspective, the integration of water and aquatic foods demands coordinated governance mechanisms that transcend traditional sectoral boundaries. Agricultural policies, fisheries management, water resource planning, and biodiversity conservation must become better aligned to enable integrated land-water management. Freed et al.’s work underscores the necessity for transdisciplinary collaboration, where scientists, farmers, fishers, and policymakers co-create solutions that are ecologically sound and socially just.

Furthermore, the researchers highlight the importance of inclusive approaches that recognize the roles of indigenous and local communities, who often possess intricate knowledge of aquatic ecosystems and sustainable harvesting practices. Their involvement is critical not only for implementing agroecological principles effectively but also for safeguarding cultural heritage tied to aquatic food systems. This inclusion reinforces equity dimensions critical to food system transformation.

Addressing climate change adaptation, the study elucidates how aquatic ecosystems can act as buffers against environmental shocks. Healthy wetlands, for example, sequester significant amounts of carbon while regulating hydrological extremes, thereby enhancing the climate resilience of adjacent agricultural landscapes. Aquatic foods provide alternative livelihood and dietary options during times of terrestrial crop failure, diversifying risk and improving food system robustness.

The research’s technical rigor is reflected in its comprehensive synthesis of ecological, social, and economic dimensions underpinning agroecological principles. This interdisciplinary analysis draws on hydrology, fisheries science, agroecosystem ecology, and socio-economic frameworks, offering a roadmap for operationalizing integrated food systems that are both sustainable and nutritious. The study dismantles disciplinary silos, emphasizing the interconnectedness of ecosystem processes and human well-being.

Intriguingly, Freed and colleagues also call for the refinement of agroecological principles to better incorporate metrics and indicators that capture aquatic ecosystem functions and services. Current monitoring frameworks often overlook or inadequately assess water quality, aquatic biodiversity, and fishery health, thereby limiting feedback loops essential for adaptive management. Enhanced data integration and technological innovations, such as remote sensing and environmental DNA, could revolutionize how aquatic components are embedded within agroecological assessments.

By repositioning water and aquatic foods at the core of agroecology, the study invites a reimagining of food system narratives that have long separated land from water, agriculture from fisheries. This conceptual realignment not only mirrors the ecological reality of coupled land-sea systems but also opens new avenues for sustainable food production strategies that respond to the complexities of 21st-century challenges.

The implications of this research extend beyond academic discourse into tangible shifts in farming and fisheries practices. Embracing polyculture systems that incorporate aquatic species alongside traditional crops can enhance biodiversity, reduce reliance on external inputs, and optimize nutrient cycling. Such mixed systems have shown promise in small-scale and community-based initiatives, illustrating scalability potential.

Moreover, the proposed inclusion of aquatic foods within agroecological frameworks may catalyze innovation in food processing, marketing, and consumption, fostering diversified diets rich in micronutrients essential for human health. This is particularly pertinent in regions where malnutrition and nutrient deficiencies persist, and where aquatic foods represent accessible, affordable sources of high-quality nutrition.

In conclusion, this seminal work by Freed et al. charts a compelling path forward for agroecology and food system transformation. By articulating the imperative to integrate water and aquatic foods explicitly into agroecological principles and actions, the study bridges gaps between traditionally siloed sectors and underscores the multifaceted potential of aquatic ecosystems to contribute to sustainable, resilient, and equitable food systems globally. As the world confronts mounting environmental and social challenges, this integrated approach offers a beacon of hope for nourishing both people and the planet.

Subject of Research: Integration of water and aquatic foods within agroecological principles to accelerate sustainable food systems transformation.

Article Title: Water and aquatic foods in revised principles of agroecology can accelerate food systems transformation.

Article References:
Freed, S., Lo, M.G.Y., McCartney, M. et al. Water and aquatic foods in revised principles of agroecology can accelerate food systems transformation. Nat Food 6, 432–439 (2025). https://doi.org/10.1038/s43016-025-01152-9

Image Credits: AI Generated

DOI: https://doi.org/10.1038/s43016-025-01152-9