Follow the Money: Seven Health Narratives That Got Distorted — And What the Evidence Actually Says

A post has been circulating — you may have seen it. Seven health "lies" laid out with righteous fury, each one a conspiracy, each one neatly resolved. It credits Aamir Nasim via Facebook. I am not going to dismiss it. There is genuine, important truth in there. But there is also some material that is overstated, or that will not survive contact with the evidence base — and if I share it uncritically, I am doing the same thing I am criticising: choosing a convenient narrative over an honest one.

So let me do something different. Let me take each claim seriously, tell you where I think the grievance is legitimate, tell you where I think it is being oversimplified, and give you my clinical read after nearly forty years of working with people whose health has been directly shaped by these myths.

This is not an anti-medicine post. It is an anti-lazy-thinking post. The health and pharmaceutical industries have absolutely influenced the science in ways that served profit over people. That is documentable and real. But the answer to bad science is not to replace it with bad counter-science. The answer is to look more carefully.

This one is substantially correct — and it may be the most consequential nutrition policy failure of the twentieth century.

The low-fat dietary guidelines that dominated from the late 1970s onwards drew heavily on the work of Ancel Keys. You may have heard that Keys had data from 22 countries and picked the seven that fitted. That story is itself a distortion. The 22-country critique (Yerushalmy and Hilleboe, 1957) was aimed at an earlier six-country graph of Keys's, and when they added the other countries the association between fat and heart disease got weaker but did not disappear. The later Seven Countries Study chose its populations for contrasting diets, not by cherry-picking results. The fair criticism of Keys is a different one: that a hypothesis resting largely on observational data was turned into population-wide dietary policy far faster and more confidently than the evidence justified. And the industry influence was real, just not where the popular story puts it: in 2016, researchers published internal documents showing the sugar industry funded a 1967 Harvard review that played down sugar and pointed the finger at fat.

What followed was a population-scale experiment in nutritional policy. Fat was demonised. Food manufacturers reformulated their products to remove fat — and replaced it with sugar, refined carbohydrates, and cheap industrial ingredients to restore palatability. Low-fat yoghurt. Reduced-fat biscuits. Skimmed milk with added sugar. The "heart healthy" stamp on boxes of processed grain. Every cell in your body is wrapped in a lipid bilayer. Your brain is approximately 60% fat by dry weight. Your steroid hormones — cortisol, oestrogen, testosterone, DHEA — are synthesised from cholesterol. Dietary fat is not an optional extra. It is structural.

Between 1976 and 2000, as fat intake fell and carbohydrate intake rose, obesity and type 2 diabetes rates climbed consistently. That correlation does not prove causation — correlation never does — and how much of it was carbohydrate itself, rather than the flood of cheap, highly palatable processed food that replaced traditional diets, is still debated. What is clear is that swapping fat for sugar and refined starch did people no favours.

This is where I start to diverge from the original post — not because the grievance is entirely wrong, but because the picture is more complicated than "they lied to us."

The claim correctly identifies a real methodological problem: lumping grass-fed beef with ultra-processed deli meat in the same epidemiological category is scientifically indefensible. Hot dogs and sliced ham are not nutritionally equivalent to a piece of rare-cooked grass-fed steak any more than Coca-Cola is equivalent to water because both are liquids. The World Health Organisation's 2015 classification that put processed meat in the Group 1 carcinogen category (alongside smoking and asbestos) and red meat in Group 2A was reported in ways that created exactly the kind of panic the post is reacting to.

But the honest position requires acknowledging that the evidence on red meat and colorectal cancer in particular is not a clean industry fabrication. There are plausible mechanisms — haem iron and N-nitroso compound formation in the gut, the effect of high-temperature cooking creating heterocyclic amines, the difference between ruminant meat and ultra-processed variants. The observational studies are confounded (people who eat a lot of red meat often have other lifestyle factors associated with cancer risk), but they are not nothing.

What I would say clinically is this: the quality of the meat, the cooking method, what surrounds it in the diet, and the individual's gut microbiome status all matter enormously. A client with an inflamed gut, compromised microbiome, and elevated beta-glucuronidase — exactly what I am seeing in clinical work right now — will process haem iron and its metabolites very differently from someone with a robust, diverse microbiome. Context is everything. That nuance gets lost when you flatten the conversation to "they lied to us about meat."

I have written three posts on vitamin D — the insufficiency epidemic, the full story including Scottish latitude and UVB seasonality, and the mineral axis required to make vitamin D functional. If there is one topic where I am genuinely exercised about public health messaging, it is this one.

The case for appropriate, non-burning sun exposure is strong. UVB radiation hitting the skin drives 7-dehydrocholesterol to pre-vitamin D3 — a process that cannot be replicated through diet alone at scale. We evolved under the sun. Vitamin D deficiency is associated with immune dysregulation, autoimmune conditions, poor bone metabolism, mood disorders, and elevated all-cause mortality. In Scotland, where meaningful UVB synthesis is only possible roughly April to September, the public health messaging to avoid the sun at all costs has contributed to a population-level insufficiency problem that is genuinely costly to health.

The sunscreen chemistry argument is real but needs care. Chemical filters — avobenzone, oxybenzone, octinoxate — do have evidence of endocrine disruption potential and some systemic absorption in humans; this is not a wellness conspiracy theory, it has been studied. Mineral-based sunscreens (zinc oxide, titanium dioxide) do not carry the same concerns. The distinction matters. Saying "sunscreen is toxic" is not the same as saying "some chemical UV filters have biological activity worth considering." One is a useful clinical point. The other is a talking point that will cause people to burn and increase actual skin cancer risk.

The claim that sunlight has "zero side effects" is also not accurate — UV radiation is a known carcinogen and the dose-response curve for skin cancer is real. The argument is not that sunlight is risk-free. The argument is that the risks of insufficiency have been systematically underweighted relative to the risks of excess exposure, and that the financial incentives of the sunscreen industry have influenced that balance.

The origin story here is accurate and worth knowing. The idea that breakfast is nutritionally non-negotiable was not born from nutrition science. It was born from a marketing campaign. John Harvey Kellogg and C.W. Post were the architects of the modern breakfast cereal industry in the early twentieth century, and the "breakfast is the most important meal of the day" claim was part of their commercial strategy. It was later amplified by General Mills, Kellogg's, and Nestlé, who had an obvious interest in turning cheap grain into a daily dietary habit.

The nutrition science does not strongly support the idea that eating breakfast is inherently beneficial for everyone. Time-restricted eating, including extended overnight fasting, has a reasonable evidence base for metabolic health in certain populations. Some people perform better with breakfast. Some genuinely do not, and forcing food on an unsympathetic circadian window is not serving them.

Where I would add nuance: the claim that "for most of human history, breakfast did not exist" is partly romantic. Meal timing has varied enormously across cultures and climates. Hunter-gatherer eating patterns were not uniformly "eat once in the evening." What is true is that continuous grazing — eating from morning to night without a meaningful fast — is metabolically problematic, and the cereal industry absolutely shaped a cultural norm of eating within 30 minutes of waking regardless of hunger signals.

Clinically, I am interested in when clients eat as much as what they eat. HPA axis rhythm, cortisol awakening response, and blood sugar regulation all interact with meal timing in ways that matter to outcomes.

Cholesterol is not a poison. It is one of the most important molecules in the human body: the precursor to every steroid hormone you make, essential to cell membranes, central to bile acid production and therefore fat digestion, and part of the myelin that insulates your nerves. Your liver makes it because you need it. Treating the molecule itself as a ticking time bomb was a damaging oversimplification.

But the original post, and my first version of this section, went too far the other way. It's often said that half of people who have a heart attack have "normal" cholesterol. That's partly because "normal" in Western populations is itself high, and partly because many of those people are already on treatment. It's true that in older people, falling cholesterol is linked to higher mortality, but illness and frailty lower cholesterol, so that link is confounded rather than protective.

Meanwhile, the evidence that LDL particles are one genuine cause of atherosclerosis is strong. People born with genes that lower LDL have far fewer heart attacks, whatever their lifestyle. And drugs that lower LDL by completely different mechanisms (not just statins) reduce events roughly in proportion to how much they lower it. The better measure is apoB, which counts the particles, rather than the cholesterol they carry.

Inflammation, insulin resistance, blood pressure, smoking and lipoprotein(a) all matter too, often as much as LDL for a given person. "LDL is one cause among several" is what the evidence supports. "It's the repair crew, not the fire" isn't.

Statins have clear indications. After a heart attack or stroke, or with familial hypercholesterolaemia, the evidence for benefit is strong, and "no drugs" as a blanket rule can cost those people dearly. For primary prevention in people at low risk, the absolute benefit is small: typically one or two fewer events per hundred people over five years. The side effects are real but less common than often claimed (muscle symptoms in about 1 in 100 in the first year, and a small rise in diabetes risk). And the drift of treatment thresholds downwards over three decades, often decided by panels with industry ties, deserves exactly the scrutiny it gets.

I want to be honest with you here: this is the claim in the original post where I am most cautious about how I present my position, because the evidence is genuinely mixed and the framing — "industrial waste dump" — is doing more heat than light.

What is true: fluoride at high doses is a thyroid disruptor. There is reasonable evidence that it competes with iodine at the sodium-iodide symporter and can affect thyroid hormone synthesis. Studies in regions with naturally high fluoride in water supplies (above 2 mg/L) have shown associations with reduced thyroid function. The IQ and neurological development studies that have attracted attention — some showing associations between high fluoride exposure and lower IQ in children — are largely from regions where water fluoride levels are substantially higher than those used in community water fluoridation in the UK (around 1 mg/L).

What I think requires more care: applying those high-dose findings directly to UK community water fluoridation at 1 mg/L is not a straightforward extrapolation. The dose-response relationship matters. The evidence that dental fluorosis — mottling of enamel — occurs even at standard doses is real. The evidence that community water fluoridation at standard doses causes the thyroid disruption, IQ reduction, and bone damage described in the post is weaker than the post implies.

I am not a defender of the fluoride industry. I think the question of whether it is appropriate to add any substance to the public water supply without individual consent is a legitimate ethical question independent of the toxicology. I also think that optimal oral health is best achieved through diet — eliminating sugar and refined carbohydrate, addressing mineral status, supporting the oral microbiome — rather than through any single additive. But characterising it as an industrial waste dump that is actively poisoning the population conflates the genuine concerns with a framing that will lose credibility with the people you are trying to reach.

The salt story is one of the clearest examples of how a real but partial finding gets amplified into a blanket public health recommendation that does more harm than good for a significant portion of the population.

The core finding — that reducing sodium intake lowers blood pressure in hypertensive individuals — has some support, particularly in salt-sensitive hypertensives. The DASH diet trials showed meaningful blood pressure reductions in people with established hypertension who reduced sodium and increased potassium. That is not nothing, and I am not dismissing it.

But the extrapolation to "everyone should dramatically reduce salt intake" is not well-supported. The relationship between sodium and blood pressure in normotensive individuals is weak. Multiple studies — including a substantial Cochrane review — have found that aggressive sodium restriction in healthy individuals produces only modest blood pressure effects and may have adverse effects on insulin sensitivity, aldosterone, and renin-angiotensin system activation. Some observational studies suggest a J-curve, with both very high and very low sodium intake linked to higher risk, but those findings are disputed because of how sodium intake was measured. And there is strong trial evidence in the other direction: in a large Chinese trial of nearly 21,000 older people with high blood pressure or a previous stroke, swapping ordinary salt for a salt substitute (less sodium, more potassium) reduced strokes, cardiovascular events and deaths.

What changed the cardiovascular picture in populations over the twentieth century was not salt. It was processed food, seed oils, refined sugar, magnesium depletion (dietary and via soil exhaustion), and potassium deficiency from reduced vegetable and mineral-rich food intake. The sodium-potassium ratio matters far more than sodium in isolation, and that ratio has been devastated by the modern diet.

Clinically, I am interested in sodium in the context of the full electrolyte picture — sodium, potassium, magnesium, chloride — and in the context of adrenal and aldosterone status. A client with low cortisol and high aldosterone will handle sodium very differently from a healthy person. A client craving salt is often telling you something about their mineralocorticoid axis, not their desire to damage their cardiovascular system.

What Connects All Seven

Every single one of these stories involves money. That is not a conspiracy theory — it is an observation about how research gets funded, how guidelines get written, and how public health messaging gets shaped by the industries that have the most to gain from the outcome.

The sugar industry funding research that pointed at fat. The breakfast cereal companies and the dietary guidelines committees they funded. The pharmaceutical industry and the lowering of LDL targets. The sunscreen market and the "avoid all sun" messaging. These are not imaginary connections. They are documented. They matter.

But there is a mirror image problem that is also worth naming: the wellness industry is not neutral either. Supplement companies, functional medicine practitioners (including people in my field), biohacking brands, and social media health influencers all have financial interests that can distort the evidence in the opposite direction. "Pharma is corrupt therefore supplements are pure" is not a logical inference. It is a different version of the same error.

The post that prompted this one ends with a line I agree with entirely: "You are not sick, you are nutrient deficient." I have spent nearly forty years watching people get labelled, medicated, and discharged when what they actually needed was someone to look at the whole picture — test comprehensively, identify what is actually missing or dysregulated, and address it at the root.

Chronic fatigue that is actually iron deficiency. Depression that is magnesium depletion. Anxiety that is unresolved HPA axis dysfunction. Gut symptoms that are a disrupted microbiome and a leaking barrier, not IBS. Thyroid symptoms that are autoimmune and nutritional, not just a TSH number. I see this pattern every week. There is no profit in magnesium, sunlight, or clean food — that is true, and it matters.

But the way to fight that is with better evidence, better testing, and more honest communication. Not with viral posts that trade one set of oversimplifications for another.

If you want to understand your own picture — not the population average, not the guideline designed for the median patient, but what is actually happening in your body — that is what the Test, Don't Guess approach exists for. Start with the Health Pattern Finder. Or book a call and let us look at the actual data.

Because the most important thing the original post gets right is this: you deserve better than a system that profits from your confusion.