The recent discussion surrounding our independent testing of Gluten Free Weet-Bix highlighted something important.
Not necessarily the test result itself, but the very different ways people think about risk, regulation, and personal responsibility.
For some people, the detection of glyphosate residues in a food product changes nothing. They trust the regulatory system, accept the current safety assessments, and are comfortable relying on existing exposure limits. From that perspective, if a product remains legal to sell and regulators continue to consider it safe, there may be little reason for concern.
For others, the question is different. They actively seek to minimise exposure to pesticides, heavy metals, ultra-processed ingredients, artificial additives, microplastics, and other contaminants wherever practical. They are not necessarily looking for proof of harm. Instead, they are trying to make informed decisions about what they put into their bodies and the bodies of their families.
Neither perspective is irrational. However, they begin from very different assumptions and often lead to very different conclusions.
Two Different Questions
Much of the debate surrounding glyphosate and food residues stems from the fact that people are often asking different questions.
One group asks: “Do regulators consider this safe?”
Another asks: “How can I reduce unnecessary chemical exposure in my daily life?”
Those are not the same question.
Before No More Glyphosate NZ began testing food products, consumers had very little information available to help answer the second question. Food labels do not disclose glyphosate residue levels. Supermarket shelves do not display laboratory test results. Most manufacturers do not routinely publish residue testing data for consumers to review.
As a result, people who wished to minimise their exposure had little choice but to rely on assumptions, marketing claims, or trust in the regulatory system.
Independent testing changes that.
Why Testing Matters
The purpose of our testing programme has never been to tell people what they should eat.
Instead, it has been to provide information that previously did not exist.
What people do with that information remains their choice.
Some readers looked at the Gluten Free Weet-Bix result and concluded that the detected level was unlikely to pose a health concern based on current regulatory assessments. Others decided they would rather avoid the product altogether. Many simply appreciated having access to information that had previously been unavailable.
All of these responses are valid.
The role of independent testing is not to make decisions on behalf of consumers. Its role is to provide transparency and allow people to make decisions that align with their own values, priorities, and tolerance for risk.
Do We Know Enough?
The discussion also raises a broader question.
Do we know enough to be as confident as some people claim?
That question becomes particularly relevant when discussing areas of research that continue to evolve, including microbiome disruption, endocrine effects, chronic low-dose exposure, cumulative exposure from multiple foods, exposure during pregnancy and early childhood, and the differences between pure glyphosate and commercial glyphosate-based herbicide formulations.
These are complex scientific fields, and in many cases researchers are still working to understand the long-term implications. While regulators periodically review emerging evidence, many of the exposure thresholds still relied upon today were originally established years or even decades ago.
This does not automatically mean current limits are wrong.
Nor does it mean that foods containing detectable residues are unsafe.
However, it does mean there is legitimate debate about whether existing risk assessment models fully capture everything modern science is beginning to reveal about long-term, low-level exposure.
A Different Way of Thinking About Risk
One comment made during the recent discussion referenced an ancient principle:
“Avert the danger before it arises.”
The idea is simple. Rather than waiting for a problem to become obvious, take reasonable steps to reduce potential risks before they develop into something more serious.
Modern regulatory systems generally follow a different approach. Potential hazards are identified, studies are conducted, exposure thresholds are established, and acceptable levels of risk are determined. The system is designed to manage risk based on the best available evidence available at the time.
This approach has many strengths and has helped shape modern food safety systems around the world. However, it is also inherently reactive. Scientific understanding evolves, and sometimes questions emerge years after a product becomes widely used.
Many consumers therefore adopt a more precautionary mindset. Rather than asking whether a product exceeds a regulatory threshold, they ask whether an exposure can reasonably be reduced.
Neither approach is inherently right or wrong. They simply reflect different attitudes toward uncertainty and risk.
The Bigger Issue
Ultimately, the debate surrounding glyphosate is not just about glyphosate.
It is about transparency.
It is about trust.
And it is about whether consumers have access to the information needed to make decisions that align with their own values and preferences.
Some people will continue to rely on existing regulatory assessments. Others will choose to minimise exposure wherever practical. Both positions are entirely reasonable.
What matters is that people have access to the information needed to make those decisions for themselves.
Because informed choice can only exist when information exists first.
Before the testing began, that information simply was not available to New Zealand consumers.
Now it is.
Further Reading
The discussion around glyphosate often becomes polarised, with strong opinions on all sides. Yet many of the most important questions are not answered by headlines, social media posts, or even a single study. Understanding how residue limits are established, how regulators assess risk, and where scientific uncertainty remains requires looking beyond the surface.
The following resources provide additional context, offering both regulatory perspectives and independent analysis to help readers explore the evidence for themselves.
Glyphosate and the ADI: Are We Really Protected?
This article explores how Acceptable Daily Intake (ADI) levels are established, why New Zealand’s glyphosate ADI has remained unchanged for decades, and whether emerging areas of research are challenging some of the assumptions behind traditional risk assessment models.
What Would NZ Find If It Tested for Glyphosate?
A discussion of historical glyphosate testing in New Zealand, why routine monitoring matters, and the broader question of what consumers can and cannot know when residue testing is limited. This article complements the themes of transparency and informed choice explored here.
Glyphosate in Food
New Zealand Food Safety‘s official overview of glyphosate residues in food. The page explains how Maximum Residue Limits (MRLs) are used, outlines the government’s current position on glyphosate in the food supply, and provides insight into how regulators assess residue data.
Chemicals in Food – Maximum Residue Limits
Food Standards Australia New Zealand (FSANZ) explains what MRLs are, how they are established, and why they are used. A useful resource for understanding the difference between residue limits and direct measures of toxicity.
Acceptable Daily Intakes for Agricultural and Veterinary Chemicals
The Australian Pesticides and Veterinary Medicines Authority (APVMA) maintains the ADI framework used for agricultural chemicals. This resource provides background on how ADIs are derived and the role they play in food safety assessments.
Food Residues Survey Programme
An overview of MPI‘s food residue monitoring programme, including how foods are selected for testing and how residue data is used to support food safety oversight in New Zealand.
Perhaps the most important lesson is that transparency and certainty are not the same thing. Transparency gives people access to information. Certainty is the confidence we place in our interpretation of that information.
As new research continues to explore areas that received little attention decades ago, the challenge is not simply deciding what to believe, but deciding which questions still deserve to be asked.
Image Source & Attribution
We created the feature image on this page in Canva.
