Glyphosate is back in the news. It seems to come up every few years, and every time it does, the conversation tends to collapse into the same narrow question: is this one chemical dangerous or not. I understand the impulse. But after more than 50 years spent studying how agriculture, food, and health actually connect, I’ve come to believe that question, on its own, misses the real opportunity in front of us.
The real opportunity is to step back and see the whole system. Agriculture, food, and health were never three separate categories. They’re one continuous chain, and I believe we could meaningfully shift the entire chronic disease epidemic if more people understood how tightly linked that chain actually is.
It Starts in the Soil
Everything in this continuum begins below ground, with the health of the soil itself. Healthy soilisn’t just dirt holding a plant upright. It’s a living ecosystem, dense with microbial life, thatdirectly shapes the nutritional and biochemical quality of everything grown in it.
This isn’t a theoretical claim. Research on regenerative and organic agricultural practices hasrepeatedly shown that improving soil biology, through reduced tillage, cover cropping, croprotation, and rebuilding microbial diversity, correlates with measurable increases in thenutrient density of the resulting crops: higher levels of compounds like vitamin C, zinc, andpolyphenols, alongside reductions in things like nitrate accumulation. The soil a plant grows inisn’t a backdrop. It’s an active ingredient in what that plant ultimately becomes.
We’ve seen this directly in our own work. In a study on Himalayan Tartary Buckwheat, we foundthat treating seeds with beneficial mycorrhizal and bacterial inoculants, essentially, enrichingthe soil’s microbial partnerships, produced a trend toward higher rutin concentration in the resulting crop. Same seed, same species, different soil biology, measurably different chemistry.That’s the continuum working in miniature, in a single study.
From Soil, to Food, to Us
Once you see that connection clearly, the next link becomes obvious. If soil quality shapes a plant’s nutrient density, then agricultural practice isn’t just an environmental issue or a farming issue. It’s a direct input into human health, upstream of anything that happens in a clinic or a pharmacy.
This is where I think the conventional conversation about food and health falls short. We tend to evaluate food almost entirely by category, whole grain versus refined, organic versus conventional, without asking the deeper question of how that food was actually grown, and what that growing process did or didn’t preserve. Two crops of the same species can carry meaningfully different nutritional profiles depending entirely on the soil and farming practices behind them. If we’re serious about chronic disease prevention, that distinction deserves far more attention than it currently gets.
A System That Doesn’t Stop at the Body
I’d go a step further. I don’t think this continuum stops at human health either. Soil has its own kind of resilience. Plants have their own defense systems. Ecosystems, in a real sense, function with something like an immune system of their own, constantly responding to and recovering from stress. Human health is downstream of all of it, connected to the health of the soil, the food it produces, and the broader ecological systems we depend on, whether we think about that connection or not.
That’s a bigger claim than most conversations about diet or farming practices are willing to make. But I think it’s the accurate one, and I think it’s why so many of our current approaches to chronic disease fall short: we keep trying to intervene at the very end of a very long chain, in the clinic, after decades of upstream input have already shaped the outcome.
Why This Is the Real Opportunity
So when a headline about glyphosate cycles back through the news, I understand why itcaptures attention. But I’d rather use that moment to point toward something bigger: not areferendum on one chemical, but a genuine shift in how we think about the relationshipbetween agriculture, food, and health.
If we can start treating that relationship as the single continuous system it actually is, ratherthan three separate conversations happening in three separate rooms, I believe we have a realchance to change the trajectory of chronic disease, not by fighting it after the fact, but bypaying attention much further upstream, starting with the soil itself.