8 Nutrition myths you learned in school (that just aren’t true)
Published on February 24, 2025

Committing to healthy eating can usher in a whole smorgasbord of conflicting food information. One minute, we’re told to eat low-fat, the next we’re supposed to load up on healthy fats. Carbs go from being the enemy to an essential part of a balanced diet. So, what’s the truth?
We were taught a lot of nutrition “facts” from school, the media, and everywhere food-related, but some of that advice has only aged like milk after being proven to be the exact opposite or oversimplified.
Turns out the food pyramid isn’t the gold standard, not all calories are created equal, and your body actually needs salt to function properly.
Let’s dispel some of the biggest nutrition myths so we can focus on enjoying eating well.
1. Myth: The food pyramid is the optimal nutrition guide
The Truth: The original food pyramid prioritized high-carb intake while downplaying the importance of healthy proteins and fats. Many medical professionals now believe this has significantly contributed to rising obesity rates.
The USDA’s 1992 Food Pyramid told us to load up on 6-11 servings of bread, pasta, and grains daily while limiting fats and proteins. This not only encouraged excessive consumption of refined carbohydrates but also ignored the benefits of nutrient-dense proteins and healthy fats – both of which are essential for satiety, hormone production, and brain function.
Research shows that a balanced diet with quality proteins, healthy fats, and fiber-rich carbs is much better for long-term health. Instead of following an outdated pyramid, focus on whole, nutrient-dense foods like lean proteins, nuts, vegetables, and unprocessed carbs.
2. Myth: Eggs raise your cholesterol
The Truth: Eggs are a nutrient powerhouse and don’t significantly impact cholesterol for most people.
For decades, eggs were blamed for raising cholesterol, leading many to avoid them or only eat egg whites. However, modern research has debunked this claim. What’s more, studies have shown that dietary cholesterol has little effect on blood cholesterol levels for most people so keep that scrambled, poached, or boiled goodness coming.
Instead, it’s trans fats and refined sugars that play a bigger role in heart disease. Eggs are loaded with high-quality protein, choline (essential for brain health), and key vitamins – making them one of the most nutritious foods you can eat.
3. Myth: Drink 8 glasses of water a day
The Truth: Hydration needs vary from person to person, and water isn’t the only source of good fluids.
The idea that everyone needs exactly eight glasses of water daily is an oversimplified guideline. Factors like age, activity level, and climate all impact hydration needs. Plus, water-rich foods like fruits and vegetables, and other beverages like milk, tea, coffee, or broth can all contribute to healthy daily fluid intake.
Drinking when thirsty is a more effective approach than forcing a set number of glasses per day. Instead of fixating on chugging liters, listen to your body’s thirst cues and make hydration choices based on your lifestyle needs. Put simply – drink when you’re thirsty.
4. Myth: All calories are equal
The Truth: The source of calories matters more than just the number.
In theory, 100 calories from candy and 100 calories from almonds are the same – but your body processes them very differently. Highly processed foods can spike blood sugar and cause energy crashes, while whole foods provide sustained energy and essential nutrients. We’ve all been taught to read labels and judge food by its calorie count instead of eating good food until we feel refueled and satisfied.
Not all calories are equal. For instance, studies show that diets higher in protein and fiber lead to greater satiety and better metabolism regulation than high-carb, ultra-processed diets. This is why eating 2,000 calories of whole, nutrient-dense foods will fuel your body far better than 2,000 calories of junk food.
Rather than obsessing over calorie counts alone, prioritize nutrient density – choosing foods rich in protein, fiber, vitamins, and minerals for better overall health and satisfaction.
5. Myth: Carbs are the enemy
The Truth: Carbohydrate quality is key, rather than cutting it out entirely.
Carbs have been unfairly demonized as a health and fitness nightmare, but not all carbs are created equal. Whole-food sources like vegetables, fruits, and whole grains provide essential fiber, vitamins, and minerals, while processed carbs like white bread and sugary snacks contribute to blood sugar spikes.
Interestingly, Americans often find when traveling abroad to countries like Italy that the bread and pasta don’t leave them bloated and sporting an extra three pounds like we often feel from our own bread products. This is in part because these countries use less refined wheat for flour, preserving more of the nutrients and fiber that make carbs healthier, and making them easier to digest than American versions.
Instead of eliminating carbs, choose whole, fiber-rich sources and prepare them in ways that support digestion – such as pairing them with protein and healthy fats.
6. Myth: red meat is bad for you
The Truth: Quality matters – lean, unprocessed red meat is highly nutritious.
For years, red meat has been blamed for heart disease and cancer, but the problem isn’t red meat itself – it’s the processing and overconsumption of poor-quality meats. Processed meats like bacon, hot dogs, and deli meats have been linked to health risks, but grass-fed, unprocessed red meat is packed with protein, iron, zinc, and B vitamins. This is the perfect reason to enjoy that mouthwatering steak.
Studies have found little evidence to suggest that moderate consumption of unprocessed red meat significantly increases health risks. Opt for high-quality, lean cuts and pair them with fiber-rich foods for a balanced diet.
7. Myth: Low salt is better
The Truth: Excess sodium from processed foods is the issue – not natural salt.
Salt has long been blamed for high blood pressure, but your body actually needs sodium for proper nerve function, hydration, and muscle contraction. The real problem isn’t natural salt – it’s the excessive sodium found in processed and fast foods.
In fact, too little sodium can be just as harmful as too much with studies showing that both extremely high and extremely low sodium intake can increase the risk of cardiovascular problems.
So stay salty and season your dishes with natural salts like Himalayan pink salt or sea salt, while keeping an eye on the sodium content for fast and processed foods.
8. Myth: Organic equals healthier
The Truth: Organic doesn’t always automatically mean nutritious – organic junk food is still junk food.
It’s easy to assume that anything labeled “organic” must be better for you, but that’s not always the case. Organic simply refers to how food is grown, meaning it’s made without synthetic pesticides, GMOs, or antibiotics in animal products. While that can be great for reducing pesticide exposure and supporting sustainable farming, it doesn’t automatically make food more nutritious.
A 2017 study found that people tend to overestimate the health benefits of organic foods, often eating more of them without realizing they can still be loaded with sugar, refined carbs, and unhealthy fats. So that tasty cookie dough protein bar may be organic, but still a sugary snack option.
That said, organic fruits and vegetables can be a good choice for certain high-pesticide crops, like strawberries and spinach. But when it comes to overall nutrition, pay attention to the actual contents and quality of the food instead of grabbing the first organic label off the shelf.
Bottom line
If there’s one thing we’ve learned, it’s that nutrition science has evolved a ton in the past few decades and we all have a chance to reclaim our health through a little proper food education.
It’s freeing to know we don’t have to frantically count calories and be afraid of foods that make our bodies feel and work better. Your health isn’t about one magic rule – it’s about consistency, balance, and making informed choices.
Bon Appétit!
This is a fantastic article! How did all these myths of the 90’s get so much traction, and why? Thanks for clarifying!
The evil food industry.
ALL due to heavy push by our government
It started in the 1940’s… during the war. Here’s a food chart:
https://digital.library.unt.edu/ark:/67531/metadc619/m1/1/
The USDA and Big Agriculture started pushing “enriched foods”. Examples:
Enriched margarine replaced butter. (Butter is healthy, margarine is cheap and not healthy).
Grain flours were bleached and stripped of all their nutrients, but gained increased shelf life. Then it was “enriched” with vitamins that your body can’t process as easily as natural flour.
In the 80’s high fructose corn syrup (HFCS) replaced cane sugar. HFCS is more addictive and it is linked to diabetes.
In the 90’s the Big Ag modified the genes of wheat, corn, etc… to make it resistant to RoundUp (glyphosate). Glyphosate is very good at killing weeds… imagine what it does to humans.
Suddenly people started developing food allergies, like gluten sensitivity.
As stated, in the 90’s motivated by big donations from Big Ag, the USDA developed the disease producing food pyramid.
On the medical front, homeopathic remedies were replaced with pharmacology. In the early 1900’s John D Rockefeller/Andrew Carnegie poured big money into the medical schools and eradicated homeopathic medicine. Doctors used to prescribe exercise, sunshine, a healthy (pre-Big Ag) diet and natural remedies for many ailments. Now they prescribe drugs based more on profit, than curing the sick. Sick people are profitable.
Oh I wrote mine before I saw yours!
What a program!
The government has been promoting the substitution of non-foods for real food and easily made-from-scratch food since at least th 1940s. War is a great excuse for large scale reengineering and social innovation!!
Thanks for the article but the part about the water ends with bad advice, “drink when you are thirsty.” As we age, our senses deteriorate, including the sense of thirst. Dehydration in older folks is a very common problem and the cause of many physical problems for them such as chronic constipation, mental confusion and balance issues. Many of them end up in the emergency room because they have become dehydrated. They aren’t thirsty so it doesn’t occur to them to drink. It’s also not true about coffee and tea counting as hydration; unless they are decaf, the caffeine is actually dehydrating.
Great article! However, Italy uses refined flour; it’s the wheat itself that is different. Wheat in the USA is almost all GMO, while that in Italy is not.
The first GMO wheat, modified to be more drought tolerant, was commercially available only last fall. It has not been widely planted, yet.
Perhaps you are thinking of corn or soybeans.
Josie,
There are absolutely zero GMO wheat seed available in the US
Thank you for…the truth!!!
The Food Pyramid actually makes sense when you’re consuming whole grains in their natural form like fresh-milled flour for instant. Wheat berries contain 40 nutrients & fiber which are mostly stripped out of the flour that’s for sale in the store. Wheat is not GMO in our country yet but sadly seems to be heading that way. Most people who cannot tolerate refined wheat can tolerate freshly-milled modern wheat with no problems. It’s not the wheat, it’s the flour that’s the problem. Getting back to fresh-milled flour will solve a plethora of modern health problems. We’ve seen it in our own family & more & more folks are experiencing that as well.
Finally! As a lifestyle guru trying to motivate my 50+ target market, having updated research to debunk the harmful eating theories, thank you so muc!
Sounds good to me. I have been of this opinion for awhile.
Why doesn’t anyone bring up the fact that folic acid is a synthetic and is added to almost everything?! And why? Because some percentage of women are pregnant and need to make sure they have enough folate. Folate and folic acid are two different things.
You missed one; hint: ”lean red meat”.: ANIMAL FAT is good for you!! It does not cause heart attacks and cholesterol is essential for healthy brain fu cation. Fat also helps you lose weight, counterintuitive but true!
All good, but lacking probably the most important fallacy that processed seed oils, i.e. canola oil, soybean oil,etc (which are in EVERYTHING processed) have any positive benefit at all. In actuality they are loaded with harmful linoleic acid which can impair brain function.
The thirst mechanism gets delayed as we get older, so that if you wait until you’re thirsty to drink fluids then you are likely to become relatively dehydrated. Thirst is a response to a fluid deficit. This contributes to fatigue, functional constipation and other issues that could be avoided with a routine of regular fluid intake without regard to thirst. Drink regularly and you will never get thirsty.
A really helpful article. Should be published everywhere people read! I especially liked “Jim’s” response! Thank you.