The modern industrial agri-food system not only fails to ensure food for all, it also delivers a diet that makes us sick and kills us early.
Dr. Trevor Hancock
25 May 2026
700 words
Food is a fundamental need: No food, no life. But in addition to having something to eat, food also must be nutritious and safe – it should not make us sick – and it has to be available to everyone.
Unfortunately, the modern industrial agri-food system not only fails to ensure food for all, it also delivers a diet that makes us sick and kills us early. Moreover, it produces food in ways that are enormously harmful to the planet. All this is documented in the October 2025 report of the EAT–Lancet Commission on healthy, sustainable and just food systems.
The Commission was established in 2018 by The Lancet, one of the world’s leading medical journals, and EAT, a Norwegian science-based global platform for food system transformation. The Commission showed that our agri-food system is deeply implicated as a major contributor to the transgression of planetary boundaries for many of the nine Earth systems that are vital for life on Earth.
Their report states: “food is the single largest cause of planetary boundary transgressions, driving the transgression of five of the six breached boundaries.” (Since October 2025 it has been determined we have crossed a seventh boundary, ocean acidification, to which agriculture also contributes).
In terms of toxins, agriculture accounts for 85 – 90 percent of total pesticide use and 73 percent of total antimicrobial use, while it contributes around half to three-quarters of flows of nitrogen and phosphorus to surface waters, which cause algal blooms and dead zones. Agriculture is also responsible for two-thirds of all freshwater use, while “Unsustainable land conversion, particularly deforestation, remains a major driver of biodiversity loss and climate change.” In addition, agriculture contributes 30 percent of all human-generated CO2 emissions that cause global heating, and a quarter of the CO2 emissions that contribute to ocean acidification.
In addition to being a massive contributor to unsustainable ecological changes, our agri-food system is already suffering the consequences of those changes. Climate change alone is a major concern, as a recent joint Food and Agriculture Organization/ World Meteorological Organization report notes. The combination of rising temperatures and heatwaves, drought and water scarcity “represent a systemic risk to global food security and to the livelihoods of more than 1.23 billion people who rely on agriculture.”
Add to that the impacts on food supply and food quality of ocean acidification, algal blooms and dead zones due to nitrogen and phosphorus pollution, as well as widespread use of pesticides and antibiotics and food chain contamination with plastic nano-particles and it is clear that our current agri-food system is ecologically unsustainable.
Not only that, but this unsustainable system does not produce a healthy diet. On the contrary: “More than half of the world’s population struggles to access healthy diets, leading to devastating consequences for public health”, the Commission states.
But the good news is that a shift to a ‘Planetary Health Diet’ (PHD), as proposed by the EAT-Lancet Commission, can not only markedly improve the health of the population but can dramatically benefit the environment.
Derived solely on the basis of the evidence as to what constitutes a healthy diet, the PHD is “rich in plants: whole grains, fruits, vegetables, nuts, and legumes comprise a large proportion of foods consumed, with only moderate or small amounts of fish, dairy, and meat recommended.” Such a diet, the Commission estimated, would avoid “an estimated 15 million deaths per year among adults (27% of total deaths) . . . globally” – and that is probably an underestimate.
Not included are the additional deaths and diseases caused by agriculture’s contribution to air pollution (about 650,000 deaths annually), climate change, use of pesticides, nitrogen pollution of water, antimicrobial resistance and pandemic risk.
Importantly, the Commission notes, producing such a diet through sustainable and ecological intensification of the food system reduces “agricultural land area, water
consumption, and nitrogen use, and substantially reduces greenhouse gas emissions”; pesticide and antibiotic use would also be markedly reduced.
It is time the federal and provincial Ministries of Agriculture and Food insist that our national and provincial agri-food systems focus on the Planetary Health Diet, on what is good for people and the planet, not just on profit and corporate power.
© Trevor Hancock, 2026
Dr. Trevor Hancock is a retired professor and senior scholar at the
University of Victoria’s School of Public Health and Social Policy
Dr. Trevor Hancock - Healthy people, healthy communities, a healthy planet 