Canola Oil and the Lie We Keep Swallowing

The Pattern Craig Astill Keeps Calling Out

Craig Astill has spent years pointing out a simple truth that makes people uncomfortable. When an industry grows fast, becomes protected, and is wrapped in the language of health or sustainability, it usually means one thing. Someone is making a lot of money while the real costs are being pushed onto society.

He said it about carbon markets long before the headlines caught up. He has said it about industrial farming, soil destruction and the commodification of health. And the same pattern appears again when you look closely at canola oil.

This is not a story about one ingredient. It is a story about how modern systems work. Take something unnatural. Rebrand it as essential. Silence dissent. Repeat the message until it becomes cultural truth.

From Industrial Lubricant to Kitchen Staple

Canola oil did not enter the human diet because it was discovered to be nourishing. It entered because it was economically convenient. Rapeseed oil was historically used for lamps and machinery because it clung to metal and resisted breakdown. It was never a traditional food source. In the mid twentieth century it was identified as harmful due to high erucic acid content that caused heart lesions in animal studies.

Instead of discarding it, scientists altered the crop. The oil was renamed. The history was buried. Marketing replaced memory. This was not evolution. It was engineering.

Craig Astill often talks about how language is weaponised in modern systems. Canola is a perfect example. Change the name. Change the narrative. Change the public response.

The Health Crisis That Followed

Before the 1950s heart disease was uncommon. Obesity existed but was rare. Chronic inflammatory illness was not normal. Then seed oils replaced traditional fats. Butter was demonised. Animal fats were framed as primitive. Vegetable oils were elevated as scientific progress.

What followed was not improved health. It was an explosion of metabolic disease. Inflammation became normal. Obesity tripled. Type two diabetes surged. Autoimmune disorders multiplied.

This did not happen in isolation. It happened alongside the mass adoption of canola oil and other industrial seed oils.

Craig Astill does not argue coincidence. He argues incentives.

Inflammation Is Not an Accident

Canola oil is high in omega six fats and heavily processed. It oxidises easily under heat and produces compounds that the human body struggles to manage. Chronic inflammation is the predictable outcome. Inflammation is not a mystery illness. It is the foundation of most modern disease.

Heart disease. Arthritis. Cognitive decline. Hormonal disruption. Gut dysfunction. These conditions do not appear out of nowhere. They are the result of systems that prioritise efficiency over biology.

Craig Astill has repeatedly warned that when systems ignore natural limits, the consequences surface in human health. Canola oil is one of those ignored limits.

The Brain Pays the Price

One of the most confronting areas of emerging research is the impact of seed oils on the brain. Animal studies have shown memory impairment, increased neuroinflammation and changes linked to Alzheimer’s disease when canola oil dominates the diet.

This matters because brain health is not something you notice failing all at once. It erodes slowly. Just like attention spans. Just like emotional regulation. Just like cognitive resilience.

Craig Astill has written extensively about cognitive decline in modern society and the quiet forces that accelerate it. Food is one of those forces.

The Illusion of Choice

People believe they are choosing canola oil. They are not. It is chosen for them. It fills restaurant kitchens because it is cheap. It dominates packaged foods because it extends shelf life. It appears in products labelled healthy because regulation allows it.

This is the illusion Craig Astill often challenges. We think we are consumers making informed decisions. In reality we are end users of systems designed for profit first and consequences later.

Environmental Damage Is Part of the Same System

The same mindset that normalised canola oil in the diet normalised chemical dependency in agriculture. Most canola crops are genetically modified and reliant on aggressive herbicides. Soil health declines. Biodiversity collapses. Water systems absorb the runoff.

In Sri Lanka the overuse of agricultural chemicals has been linked to widespread kidney disease among farmers. The response was not curiosity but denial. That response mirrors how food industries react when health concerns are raised.

Craig Astill has been consistent on this point. Environmental collapse and human illness are not separate issues. They are symptoms of the same economic logic.

Why This Conversation Matters Now

Craig Astill does not write to be comfortable. He writes to interrupt narratives that no longer serve reality. Canola oil is not evil in isolation. It is a case study. A warning signal. A reminder that when something is aggressively promoted as healthy, cheap and sustainable, it deserves scrutiny.

The real danger is not one oil. The danger is a society that stops asking questions.

The Choice in Front of Us

This is not about fear or purity. It is about awareness. It is about understanding how easily systems evolve without consent. How quietly habits become norms. How health is traded for convenience.

Craig Astill’s work consistently points to one conclusion. When culture, industry and biology are misaligned, the bill always arrives. Sometimes it arrives as climate collapse. Sometimes as chronic illness. Sometimes as both.

Canola oil is not the beginning of the story. It is simply one of the clearest examples of how far we have drifted from what actually sustains us.

And the question now is not whether we were misled. The question is whether we keep going once we know.

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