The Intersection of Health and Planet: Why Food Choices Matter

Abstract

Objective: To explore the interconnected crises of chronic disease, environmental degradation, and social inequity through the lens of food systems and to highlight the potential of plant-based dietary patterns to mitigate these challenges. Main Outcomes and Measures: Evidence demonstrates that plant-based diets reduce the prevalence of chronic diseases, including heart disease and type 2 diabetes, alleviate environmental harm by reducing greenhouse gas emissions and water usage, and promote health equity by increasing access to affordable, nutritious foods. Quantitative outcomes include projected savings of trillions of dollars in health care and climate-related costs and the prevention of millions of premature deaths globally. Results: Transitioning to plant-forward food systems has been associated with a reduction in chronic disease risk by up to 90%, a significant decrease in health care expenditures, and a 75% reduction in agricultural land use. Key interventions, such as produce prescriptions and plant-based meal programs, demonstrate the effectiveness of systemic solutions in improving health outcomes while addressing structural inequities. Conclusion: Aligning individual and collective efforts toward sustainable, health-focused food systems presents a transformative opportunity to improve global health, conserve natural resources, and foster social equity. By adopting plant-based diets and supporting equitable food policies, individuals, health care professionals, and policymakers can collaboratively create a more resilient, sustainable, and just future for generations to come.

“Investing in sustainable agricultural practices can restore ecosystems, protect water supplies, and create long-term solutions to food insecurity.”

Introduction

The crises of chronic disease, environmental collapse, and social inequities are intricately linked—and the thread that ties them together is food. What we eat does not just shape our personal health; it ripples outwards to influence the vitality of communities, the stability of ecosystems, and the future of our planet. How we feed ourselves profoundly impacts both public health and environmental sustainability. And yet we live in an all-too-often toxic food culture in which unhealthy foods are normalized, advertised and even subsidized—despite contributing to chronic diseases, disability, and premature death for millions of people every year. At the same time, industrialized farming practices contribute to soil degradation while intensifying air and water pollution, creating a harmful feedback loop that further harms our health. What is more under-resourced communities around the world are affected the most.

If the problem is largely related to what is on our plates, then that is also where we can look for solutions. Indeed, shifting our dietary choices, far from being a trivial pursuit, can uplift health outcomes for all and contribute to a safer and healthier environment.

The Burden of Chronic Diseases

Current health care systems are overburdened in part because they focus heavily on managing symptoms rather than addressing root causes—an approach that is both inhumane and financially unsustainable.

In the United States alone, healthcare expenditures have skyrocketed to $4.5 trillion annually—over 15% of the nation’s GDP ¹ —with more than $4 trillion allocated to managing chronic illnesses. ² To put this in perspective, that is more than four times the U.S. military budget. ³ Globally, chronic diseases claim 41 million lives prematurely each year, accounting for 71% of all deaths. ⁴ These staggering numbers reflect a preventable tragedy fueled by diet and lifestyle choices.

Chronic diseases exact a heavy toll beyond mortality, leading to years of disability and diminished quality of life. Worldwide, they account for 255 million disability-adjusted life years lost annually ⁵ —a stark measure of how illness erodes productivity and well-being. These lost years represent more than personal suffering; they also burden families, communities, and economies. Caregivers sacrifice time, resources, and emotional energy to support loved ones.

The human toll of chronic disease is immeasurable, robbing individuals of productive, joyful years. Families endure emotional and financial strain, while communities lose creativity, innovation, and potential. And as we will explore below, these illnesses disproportionately impact low-income populations.

A Path of Hope for Human Health

Despite the enormity of this challenge, hope abounds. While mainstream health care focuses on surgical and pharmaceutical interventions, and policy makers debate how to pay for all the staggering costs of an overwhelmed health care system, there is a comprehensive solution right under our noses: a global shift toward nutrient-dense foods could save millions of lives.

Research increasingly highlights a link between diet and chronic conditions like cardiovascular disease, type 2 diabetes, and obesity. Studies show that a lifestyle rooted in whole-foods and plant-based eating, regular physical activity, and non-smoking habits can reduce the risk of heart attack by up to 90% and type 2 diabetes by 90%.^6-8 Such a lifestyle also decreases the risk of coronary heart disease by 65% and stroke by 50%.^6,7

Increasing fruit consumption alone could prevent 4.9 million premature deaths each year, while higher intakes of nuts, seeds, vegetables, and whole grains could save another 6 million lives annually. ⁹ In Finland, nationwide dietary initiatives promoting greater fruit and vegetable consumption have been linked to a significant reduction in cardiovascular disease over the past two decades. ¹⁰ What we choose to eat has the power to significantly reduce the crushing toll of chronic disease.

By embracing preventive care and whole-foods, plant-forward dietary patterns, we can slash health care costs while enhancing public health. We can also contribute to a healthier environment.

The Environmental Impact of Food Systems

The way we produce food has a significant impact on the health of our planet. Animal agriculture, in particular, stands as a major driver of greenhouse gas emissions, deforestation, water depletion, and biodiversity loss. ¹¹ To ensure a sustainable future for humanity, we must confront these challenges and embrace solutions that align with the needs of both people and the planet.

Climate Chaos

The evidence for climate change is overwhelming—and sobering. Every year, greenhouse gases like carbon dioxide (CO₂), methane (CH₄), and nitrous oxide (N₂O) accumulate in the atmosphere, forming an insulating blanket that disrupts Earth’s natural systems. ¹² Methane and nitrous oxide, emitted in substantial amounts by livestock, are significantly more potent than carbon dioxide at trapping heat in the atmosphere, making them major contributors to global warming. These gases drive the global warming that is reshaping our world.

But it is not just about rising temperatures. The extended effects of climate disruption destabilize ecosystems. Polar ice is melting, sea levels are rising, and storms and floods are intensifying ¹³ —all with devastating consequences for human and animal communities.

Land Use and Greenhouse Gas Emissions

The inefficiencies of animal agriculture are staggering. It consumes 83% of the world’s agricultural land yet provides only 18% of global calories. ¹¹ This imbalance drives deforestation, particularly in biodiversity-rich regions like the Amazon. Vast areas—equivalent to the size of South America ¹⁴ —have been cleared to create land on which to grow crops, like soybeans—much of which are fed to livestock. ¹⁵ In addition, we have taken over an area the size of Africa for the raising of livestock. ¹⁵ Each acre lost not only destroys habitats but also releases stored carbon into the atmosphere, further fueling climate change.

Livestock farming is a leading emitter of greenhouse gases. Beef, for example, generates ten times more emissions than pork or poultry and over 100 times more than plant-based, protein-rich foods like lentils or beans. ¹⁶ Transitioning to a plant-based diet could reduce agricultural land use by more than 75%, ¹⁷ freeing up land for reforestation and allowing nature to begin repairing itself. ¹⁸ Such efforts could sequester an estimated 226 billion metric tons of carbon one-third of the excess emissions since industrialization. ¹⁹

Biodiversity and Ecosystems

Our planet’s biodiversity is under siege. Today, 34% of all mammalian biomass on Earth is humans, 62% is composed of livestock, while wild animals make up only 4%. ¹⁹ This imbalance reflects the destruction of natural habitats to make way for grazing lands and feed crops. The Amazon rainforest, often referred to as the “lungs of the Earth,” is being decimated by cattle ranching and soy farming for animal feed.

The consequences are heartbreaking. Species are being pushed to extinction, and ecosystems are losing their resilience. Reducing meat consumption can relieve this pressure, opening the door for reforestation and the rewilding of ecosystems. By prioritizing plant-based diets and embracing regenerative practices, we can help restore habitats, enhance biodiversity, and combat climate change.

Water Consumption

Water is life, yet we are depleting it at an unsustainable rate. By 2040, more than half the global population is projected to live in regions experiencing high or extreme water stress. ²⁰

This crisis demands a shift to less water-intensive foods. Agriculture accounts for 92% of humanity’s freshwater use, ¹¹ with animal-based foods as the primary culprits. Producing just one pound of beef requires an astonishing 1850 gallons of water—enough to stack a pile of 1 gallon water jugs higher than the Empire State building.^21,22 In contrast, crops like corn (152 gallons of water per pound of corn flour) and lentils (228 gallons of water per pound, uncooked) require a tiny fraction of that amount. ²¹

Globally, especially in regions like the Middle East and Northern Africa, ²⁰ prioritizing plant-based food production in agriculture could substantially decrease water consumption, easing the strain on limited water resources. Transitioning to plant-based diets can significantly reduce the pressure on freshwater systems, helping to ensure access to water resources for generations to come.

A Path Forward for Ecological and Community Restoration

The environmental case for dietary change is undeniable. A shift to plant-based eating has the power to slash greenhouse gas emissions, conserve water, and rejuvenate ecosystems. It can also support communities that are already struggling the most. Regions burdened by limited resources often face the brunt of environmental challenges, such as deforestation, water scarcity, and food insecurity, which disproportionately affect those with fewer opportunities. ²³

Sustainable food systems can help address these disparities. Aligning our diets with principles of sustainability means protecting the planet while also fostering opportunity, well-being, and resilience for everyone.

Building Opportunity and Fairness through Food

Food is more than nourishment; it is a tool for improving opportunity and fairness. The choices we make about what we eat affect not only our personal health and the environment but also the well-being of our communities. Underserved populations—especially those with lower incomes—are disproportionately affected by diet-related health challenges and limited access to nutritious foods. Tackling these barriers is essential for creating greater opportunity for all.

Health Disparities across Communities

Diet-related health challenges are not evenly distributed. In the United States, Black and Hispanic Americans experience significantly higher rates of heart disease, diabetes, and Alzheimer’s disease than White Americans. African Americans, for example, are 30% more likely to die from heart disease.^24,25 These disparities have been linked to barriers to health care, economic constraints, and limited access to nutritious and affordable food. ²⁶

In neighborhoods where fresh and healthy food is hard to find, families often rely on calorie-dense, nutrient-poor processed foods. This reliance fuels poor health outcomes and creates cycles of illness and financial struggle that are hard to break. The costs of medical care, combined with lost productivity, further strain families and local economies—perpetuating intergenerational poverty.

The Economic Costs of Health Disparities

The financial toll of racial and ethnic health disparities is staggering. In 2018, alone, these disparities cost the United States $451 billion. ²⁶ Much of this cost falls directly on families in underserved communities, but it also ripples across society. Public health care systems often bear the expense, which in turn impacts taxpayers.

A national U.S. study revealed that targeted interventions to address food insecurity could save billions in Medicaid spending each year, fostering a more efficient and equitable health care system. ²⁷ By improving access to healthy food in all communities, we can ease this strain and create pathways to economic mobility.

Food as a Catalyst for Opportunity

Access to healthy food can transform lives. Increasing the availability of affordable, fresh, and culturally appropriate food is a critical step toward empowering communities to improve their diets and overall well-being. Programs like urban farms, community gardens, and local food cooperatives offer solutions that allow communities to regain control over their food systems and health.

Educational programs that teach healthy eating habits, especially those emphasizing whole and plant-based foods, can be particularly impactful. When these programs honor cultural preferences and values, they can lead to long-lasting changes that benefit entire communities. Improved health means families can spend less on medical bills and focus more on employment, education, housing, and building a brighter future.

The Potential of Produce Prescriptions

One innovative approach is the use of produce prescriptions, which offer financial support for purchasing fruits and vegetables. These programs, part of the “Food Is Medicine” movement, have gained traction in states like Washington, New York, and California. ²⁸

Research from Tufts University found that produce prescriptions are significantly more cost-effective than modern weight loss medications. The incremental cost-effectiveness ratio of produce prescriptions was more than ten times lower, demonstrating their potential for improving public health at a fraction of the cost. The study projected that providing produce prescriptions to 6.5 million eligible recipients could prevent 292 000 cardiovascular events and generate 260 000 quality-adjusted life years over their lifetimes. ²⁹

These benefits are consistent across diverse populations, demonstrating the universal potential of this approach. ²⁹

Produce prescriptions not only improve individual health but also reduce health care costs, making them a win-win for families, taxpayers, insurance buyers, and the broader health care system.

What We Have to Gain

Programs like produce prescriptions highlight what is possible, but they are only part of the solution. To create meaningful change, we need a multi-faceted approach that includes policy shifts, community initiatives, and individual actions.

Researchers from the Oxford Martin School ²⁷ highlight the incredible potential of dietary changes. A global transition to plant-based diets by 2050 could save 8 million lives annually by reducing the prevalence of chronic diseases and the associated strain on health care systems. This shift could also avert over $1.5 trillion in climate-related damages by mitigating the environmental costs of industrialized food systems. Perhaps most compellingly, these changes could generate $20 to $30 trillion in net economic value by reducing premature deaths—showing just how deeply health and sustainability are intertwined.

Global organizations like the United Nations Food and Agriculture Organization (FAO) and the World Health Organization (WHO) echo this call to action. ²⁹ They advocate for sustainable diets that promote individual health, reduce environmental harm, and remain accessible, affordable, and culturally relevant for all. By adopting such dietary patterns, we can bridge critical gaps in health equity, environmental stewardship, and public health, ensuring that all people have a fair shot at thriving.

Call to Action

Addressing the intertwined crises of chronic disease, environmental destruction, and social opportunity demands urgent, deliberate action. It will take all of us—individuals, health care practitioners, policymakers, and communities—working together to reshape our food systems to prioritize healthy people, and a healthy planet.

Empowering Individual Choices

Each meal is an opportunity to make a difference. By adding more plant-based foods—like fruits, vegetables, legumes, and whole grains—to our diets, we can reduce our risk of chronic diseases, protect natural resources, and minimize environmental harm. Even small steps, such as incorporating one plant-based meal per day or choosing seasonal, locally grown produce, can create meaningful momentum.

The Role of Health care Professionals

Health care practitioners are uniquely positioned to influence dietary choices. By incorporating nutrition education into patient care, they can empower individuals to make life-changing decisions. Practitioners can also advocate for systemic improvements, such as subsidizing fresh produce, offering plant-based meal options in hospitals, and integrating nutrition into medical training.

By prioritizing preventive care and focusing on lifestyle changes, the health care system cannot only save lives but also reduce costs and improve overall societal well-being.

Advocating for Systemic Change

While individual actions are important, addressing structural barriers is essential. Policymakers can help by ensuring that all communities—regardless of income or location—have access to nutritious food. Regulating the marketing of unhealthy processed foods, especially to children, and redirecting subsidies toward health-promoting crops are critical steps. Investing in sustainable agricultural practices can also restore ecosystems, protect water supplies, and create long-term solutions to food insecurity.

Conclusion

The challenges of chronic disease, environmental harm, and social inequities may feel overwhelming, but they are not insurmountable. The food choices we make every day have the power to transform our health, protect our planet, and build a brighter future for all.

Whole-food, plant-based diets offer a path forward. They reduce the risk of chronic illness, ease the environmental footprint of agriculture, and promote fairness by making nutritious food—and health—more accessible to everyone. Globally, transitioning to healthy and plant-based food systems could save millions of lives annually and generate trillions of dollars in economic value.

The power to create change is in our hands—and on our plates. Together, we can build a healthier, more resilient, and more sustainable world. Every meal, every conversation, and every decision matters. Let us act now to create a future where all people and the planet can thrive.

ORCID iD

Ocean Robbins https://orcid.org/0009-0008-8123-7857