Disclaimer: This article is for general educational purposes only and is not medical advice. Always speak to a qualified healthcare professional before making major changes to your diet, especially if you have a medical condition or take medication.
For a long time, people kept hearing the same message.
Eggs were labelled as bad. Butter was seen as risky. People were told to cut back on red meat. Saturated fat became the enemy, and cholesterol was something the devil himself was responsible for.
At the same time, low-fat products, spreads, cereals, soy substitutes, and industrial seed oils were promoted as healthier options.
But many of these ideas were based on shaky evidence, simple slogans, and a poor understanding of how our bodies really work. This article will break down some of the most common diet myths and get back to the basics.
Real and traditional foods matter. Animal fats were never the villain that many believed.
Why this matters
When people are told to avoid nourishing foods, they often end up choosing products that seem healthy but don’t actually help much.
That’s why whole eggs get swapped for egg substitutes, butter is replaced with processed spreads, full-fat yoghurt is traded for sugary “low-fat” desserts, and real breakfasts are replaced with cereal and juice.
This often leads to more confusion, processed foods, and poorer health.
With these issues in mind, let’s clear away the confusion and systematically tackle these myths, beginning with one of the most common misperceptions.
Myth 1: Cholesterol is bad for you
This is one of the biggest nutrition myths today.
Cholesterol isn’t actually a fat. It’s essential for life, found in every cell of your body. The brain contains about 20–25% of the body’s cholesterol, even though it’s only about 2% of your weight. Without cholesterol, cells can’t keep the balance between flexibility and structure.
Your body actually makes most of the cholesterol it needs, showing it’s essential, not harmful.
Cholesterol is also needed for healing, making hormones, producing bile salts, keeping skin healthy, making vitamin D, and supporting nerve and brain function. It is important for normal brain function and mood. It’s also found in breast milk, underscoring its importance for babies’ growth and development. The Great Cholesterol Scam argues that cholesterol has been misunderstood for decades and has been wrongly portrayed as a public enemy.
Low Cholesterol is Associated With Mortality From Stroke, Heart Disease, and Cancer, also points in a direction many people never hear about: low cholesterol was associated with higher mortality, while high cholesterol was not a mortality risk factor in that cohort.
That’s something worth thinking about. Cholesterol isn’t the villain it’s often made out to be.
Myth 2: Saturated fat clogs arteries and causes heart disease
This message was repeated so often that people took it as a settled fact.
Saturated fats help build cell membranes. They support the brain, nervous system, immune system, bones, and heart. Some types of saturated fat also help the body’s internal communication systems.
The body depends on saturated fats in key ways, especially for the brain and nervous system. Myelin, which protects nerves, is mainly fat, and cholesterol is crucial to its structure.
The same Midwestern Doctor article is relevant here, too, because the fear of saturated fat has long been tied to the fear of cholesterol. Once cholesterol was wrongly demonised, saturated fat was dragged down with it.
The real problem was never traditional animal fat. The real problem was the rise of man-made fats, industrial processing, and fake foods that only seem healthy.
Myth 3: Eggs are unhealthy
Eggs are among the most unfairly maligned foods in modern nutrition. They contain nutrients that support the brain and nervous system. They are simple, natural, filling, and nutrient-dense.
Eggs are also one of the richest natural sources of choline, an essential nutrient that supports brain function, memory, and the nervous system.
For years, people were told to avoid the yolk because of cholesterol. But that only makes sense if cholesterol is actually harmful—and that idea is now being questioned.
Instead of fearing eggs, most people would benefit from seeing them as real food that has nourished people for generations.
Myth 4: Butter is bad for you
Butter is more than just fat.
Butter has been pushed out of many kitchens and replaced with “heart-healthy” spreads that are anything but natural.
Butter has nourished healthy populations for millennia, providing fats and nutrients vital for growth, development, and brain function.
Avoiding butter leads people to distrust a traditional food and trust factory-made substitutes instead.
Butter is not a new invention; it is a longstanding part of the human diet and is real food.
Myth 5: Lean meat and low-fat dairy are always healthier
This idea sounds sensible on the surface, but it often ignores how nutrition actually works.
When fat is removed, you do not just lose calories. You lose flavour too. You also lose the food’s natural structure and often miss out on vitamins A and D, along with other nutrients needed for growth, thyroid function, brain function, and normal cell function. And once that natural flavour is stripped out, it is often replaced with sugar, artificial flavourings, and other additives to make the product taste appealing again.
This doesn’t mean everyone should avoid lean foods. It just means “low fat” shouldn’t always be seen as a sign of health. Often, it just means the food is less satisfying and less nourishing than the original.
Myth 6: Grass-fed animal foods are no different
Quality matters.
Not all animal foods are exactly the same. How an animal is raised affects the quality of the food it gives us.
Grass-fed animals provide important nutrients that support the heart, brain, and nervous system, including B vitamins, zinc, phosphorus, carnitine, CoQ10, and fat-soluble vitamins. The fat in grass-fed meat is also reported to contain beneficial compounds such as CLA.
This does not mean only grass-fed food is good and everything else is bad. It simply means quality matters, and traditional diets understood that long before modern packaging and marketing arrived.
That is why soy is often part of this conversation.
Modern soy products are frequently marketed as clean, clever plant-based replacements for traditional animal foods. But many critics’ concern is that these products are not simple whole foods like eggs, butter, meat, or full-fat dairy. They are often highly processed substitutes.
They are described as blocking mineral absorption, inhibiting protein digestion, disrupting hormones, suppressing thyroid function, and containing compounds that may cause harm.
Whether someone agrees with every part of that argument or not, the bigger point is simple: a processed replacement should not automatically be assumed to be healthier than a traditional whole food just because it is marketed as modern or plant-based.
Myth 8: Vegetable oils are healthier than animal fats
This is another idea that has had a big impact on modern diets.
People were encouraged to move away from traditional animal fats and towards industrially processed vegetable oils. But the points you shared suggest that this dietary shift occurred during the same broad period when heart disease rose sharply, while animal fat intake declined.
That does not prove every cause on its own, but it does challenge the simplistic story that animal fats were the problem.
Hydrogenated fats and industrial vegetable oils are major causes of poor health. These man-made fats weren’t part of traditional diets; they come from the modern food industry, not the old kitchen.
Animal fats are traditional, while hydrogenated and industrial fats are manufactured.
They are not the same thing.
Myth 9: A vegan diet is healthy
A vegan diet is often presented as the healthiest option, but that claim deserves more scrutiny.
Certain nutrients are found only in animal foods or are much harder to obtain in the right form and amount without them. These include complete protein, cholesterol, and vitamins A, D, B6, and B12. Plant foods do not provide true vitamin A in the same way, and vitamin B12 is not properly obtained from plant sources.
A vegan diet means more planning and nutritional caution to avoid deficiencies. It requires careful choices or supplementation.
This is not about attacking anyone’s ethics or personal choices. It is about recognising that the human body has real biological needs, many of which have traditionally been met through animal foods. For that reason, a vegan diet should not automatically be described as the healthiest way to eat, especially when essential nutrients can be much harder to obtain.
Myth 10: Organic cereals, snacks, and breakfast foods are healthy by default
The word “organic” has a powerful effect on people.
It can make a product sound wholesome even when it is still heavily processed.
The points you shared make this very clear. Organic cookies, crackers, cereals, chips, and juices are still refined convenience foods. They may avoid certain chemicals, but they can still be nutrient-deficient and far removed from real nourishment.
Breakfast cereal is a good example. It’s been marketed as a health food for decades, but the material you shared says many cold cereals are made using extrusion, a harsh process that changes the proteins in grains.
So the label alone isn’t enough.
Organic junk food is still junk food.
The bigger truth
When you step back, a clear pattern appears. Saturated fats, such as eggs, butter, full-fat dairy, meat, and animal fats, were gradually framed as dangerous.
Meanwhile, foods produced by industry, such as hydrogenated fats, processed oils, low-fat substitutes, synthetic spreads, and boxed cereals, were sold as progress.
That swap has not served people well.
The truth is that traditional animal foods were wrongly feared, while man-made fats and heavily processed foods became normalised.
That’s the real nutrition myth that needs to be busted.
Final takeaway
If a food has nourished people for centuries, it deserves more respect than a catchy slogan or a supermarket label.
Eggs, Butter, Cholesterol, and saturated fat are not the enemy. Man-made processed food is.
I heard this a long time ago, which stuck with me: “ Humans are smart enough to create their own food, and dumb enough to eat it”
The bigger problem is that real food has been replaced by industrial food, and common sense by marketing.
That’s the bigger lesson here.
It’s worth remembering this whenever a box, bottle, or spread claims to be healthier than the food your grandparents ate. Then it’s a lie.
