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We believe Americans consume unhealthy amounts of seed oils and that the American Heart Association (AHA) actively promotes them because of conflicts of interest. Healthcare professionals for the most part accept the AHA’s advice without question because they are unaware of the history of the organization’s dependence on funding from companies selling products made with seed oil. Most healthcare professionals are also unaware of the scientific fraud perpetrated by the men who originally proposed the idea that seed oils are healthy and saturated fats are unhealthy.

This regularly updated post contains information, resources, and references on seed oil toxicity. Want to go deep down the rabbit hole? This is Dr. Cate’s flagship post for you…

All PUFA Articles

The following articles are about PUFAs or include a mention of the term. PUFA is an acronym that refers to polyunsaturated fatty acids. See also: Seed Oils

Attention Keto Dieters: Seed Oil is Worse than Sugar

Table of ContentsFellow members of the keto community, keto dieters everywhere, we need to talk.That’s why I’m so excited for the opportunity to partner with the Metabolic Health InitiativeFellow keto leaders: we must align our health advice with the science.But Wait…Why Does Atkins-Style Keto Work?Common False Claim about KETO:Have you heard of something that keto…

Low Smoke Point Olive Oil on High Heat–Is It Safe?

Table of ContentsOlive Oil has a Low Smoke Point. Can you still cook with it?Invisible Oxidation Makes Oils Toxic BEFORE They Start to SmokeRefining Raises Smoke PointOlive oil smoke point, by grade.Removing Antioxidants Exposes Polyunsaturates to Toxin-Generating Oxygen ReactionsWhere do toxins in refined oils come from?Virgin Olive Oil Has A Lower Smoke Point Than Refined…

Seed oil Toxicity: Trend or Truth?

Since avoiding seed oils has become a trend, the newest trend debunks the idea that we need to avoid them. This post debunks the debunkers.

Guilt by Association: Salt Is Not Even A Little Bad For Our Health

Table of ContentsYou might think salt makes you bloated. It’s actually something else.Ignoring How Healthy Kidneys Easily Deal With SaltA sprinkling of circular reasoning about salt.Disregarding toxins that damage kidneys.RBD Vegetable Seed Oils (The Hateful Eight) Contain Dangerous ToxinsThe Awful AldehydesOverlooking the role of malnutrition.How to make food cheaper.Making recommendations before doing any research.We need…

Seed Oil Makes Sunburn Worse and Ages Your Skin

Find out why seed oils make sunburned skin more inflamed and how avoiding them protects your collagen and keeps you looking young

French Fries are the Least Healthy Fast Food, But Not Tallow Fries

Toxicologist finds same toxins in French Fries cooked in seed oils and cigarettes. This may explain why fries are the most fattening food.

How Eliminating Vegetable Oil (AKA the Hateful 8 Seed Oil) Helps Weight Loss

To lose weight we need to burn more body fat than we build. But the hateful 8 seed oils block fat burning. Find out how.

Menopause, weight gain, and metabolic health.

Going through menopause is miserable for millions of women. But it can be (almost) a breeze! if you eat to optimize your metabolic health. In fact, while I was living in Hawaii, I noticed a particular group of patients breezed through menopause. Discover their secrets!

Seed oils: Questions and answers for your health

All the answers to your health questions about how seed oils are harmful to your health. And which vegetable oils and fats are good and which are bad.

4 Videos Explaining How Vegetable Seed Oils Rob our Energy and Cause Inflammation

Four of my best videos that explain how vegetable seed oils are the root cause behind conditions currently blamed on genetics and bad luck.

Dr. Cate Discusses Controversy Over School Lunch on Jesse Watters Primetime

Kids need love—that goes without saying. But kids need good nutrition too, and that very often is left unsaid in the conversations over the USDA’s National school lunch program. Or, only raised as a follow-up after what it costs, who is paying, and its calorie content. Jesse Watters hosts a National news and talk show…

Valentine Chocolate: Saying “I love you” Without Lecithin

Soy lecithin is unavoidable in all but a few chocolates. How important is it to avoid? What are the best brands of chocolate?

Why Vegetable Oils are Toxic and Why Kobe Drinks Bone Broth

Have you heard all the rage about bone broth? From Gwyneth Paltrow to Kobe Bryant, big-time celebs are hopping on the bone broth train. Not to mention, our guest this week helped Dwight Howard conquer sugar addiction. You’re about to learn how.

Why is Junk Food Bad for Your Health? It’s the FAT (mostly) but NOT the Saturated Fat

Processed food can make us fat, but it may have effects that are more profound, including the disruption of facial geometry.

Fatty Liver Promotes Long Covid (New Study)

New studies show fatty liver makes COVID not just deadly but also disabling by increasing the chance you’ll develop “long covid.” You can reverse fatty liver to prevent long Covid by avoiding seed oils, cutting soda and juice, and keeping alcohol under 4 drinks per week. Of the above three factors, the most important is…

Are Toxins Affecting Sexual Organ Size?

Shanna Swain, author of Countdown, makes some shocking claims about human genitalia and the future of the human race. She focuses on persistent environmental toxins, but there’s a more powerful factor that reproductive endocrinologists like Swain know little to nothing about.

Can’t stay motivated? It might be your metabolism

Your ability to control cravings takes energy. Brain energy. But if you’ve been eating seed oils, they can deprive your brain of energy, hijacking your willpower.

Cholesterol: What the American Heart Association is Hiding from You (Part 3)

In part 3 of this series exposing the truth about cholesterol I show you the documents the American Heart Association use to trick doctors into believing there is ample evidence linking cholesterol to heart disease.

Cholesterol: What the American Heart Association is Hiding from You (Part 2)

In Part 2 of this series we learn about a large human clinical trial that the American Heart Association leadership buried. This trial disproves the cholesterol theory of heart disease, shows that lower cholesterol correlates with greater death, and offers solid evidence that vegetable oils increase your risk of dying.

Cholesterol: What the American Heart Association is Hiding from You (Part 1)

Part 1 of my 3 article series explains that cholesterol is a nutrient and not the root cause of heart disease. The root cause is a chemical process called oxidation. After all, smoking doesn’t raise cholesterol. It causes oxidation.

Make Mayo Fast and Foolproof in 2 Minutes Flat

Unknown to most mayo lovers, the mayo in the store is a metabolism-breaking fat bomb, greased up with highly toxic seed oils.

PUFA-Project: Scientific References on Seed Oil Toxicity

Table of ContentsMission:Basic PrinciplesThe Excessive Seed Oil HypothesisHistorically adipose tissue contained a fraction of the PUFA found in adipose tissue today.Reference supporting the notion that excessive PUFA intake causes oxidative stressHow Seed Oils Lead to Obesity and Diabetes:Seed Oils Make You Crave Carbs, SugarHow Genetics Plays a Role: The Personal PUFA Threshold Concept.DOCUMENT NAVIGATION BAR…

Food Rules: A Doctor’s Guide to Healthy Eating

In this book, Dr. Cate shows how all calories are not created equal; food is information that directs our cellular growth. Our family history does not determine our destiny: what you eat and how you live can alter your DNA in ways that affect your health and the health of your future children.

Deep Nutrition

In this book, Dr. Cate shows how all calories are not created equal; food is information that directs our cellular growth. Our family history does not determine our destiny: what you eat and how you live can alter your DNA in ways that affect your health and the health of your future children.

Is the Coronavirus Racist?

Why do African Americans die from COVID at roughly twice the rate of whites? The mainstream media pundits won’t bring up anything immediately actionable by a single individual.

Dr. Cate on Real Time with Bill Maher

4 Minute Read In case you missed it, last week I spoke to Bill Maher on HBO’s Real Time to impeach the poster boy of the junk food/pharmaceutical-industrial complex—seed oils (aka vegetable oils). I also threw down a challenge: If anyone in America has been diligently avoiding vegetable oils for five years and got hit…

The Hateful Eight: Enemy Fats That Destroy Your Health

Eliminating the eight high-PUFA seed oils that are overabundant in the food supply is the NUMBER ONE best thing you can do to help your immune system beat coronavirus. Here’s why.

Can HDL Over 60 Protect You From Coronavirus?

If you are worried about coronavirus, you should be more worried about low cholesterol according to a new study that shows lower HDL and LDL predicts poor outcomes

The Fats Making Us Sugar Addicts

If you want to get off sugar you need to know if your metabolism depends on it as a cellular fuel. Learn 11 common signs of metabolic sugar dependence, and why fixing your metabolism is the first step to controlling a sweet tooth.

Hidden Metabolic Disorders Allow COVID-19 to Kill “Healthy” People

Table of ContentsGOOD NEWS! Physical copies of Deep Nutrition and The FATBURN Fix sold out from Amazon but ebooks and audiobooks are still available. Deep Nutrition is available from BooksAMillion.com and The FATBURN Fix is available from Barnes and Noble. Food Rules is available in all formats on Amazon.This article coversWhy coronavirus is “like a flu”…

Dr. Cate Shanahan’s book: The FatBurn Fix

It’s not you that wants to overeat. It’s not you that doesn’t have the energy to exercise. It’s your metabolism. If you’ve gained and been unable to lose or lost and regained, it’s not lack of willpower. It’s lack of FATBURN.

Dr. Cate on: Avoid This Foods To BOOST BRAIN HEALTH & Reduce Inflammation

Shawn Stevenson of The Model Health Show invites Dr. Cate Shanahan on his show again to discuss the number one risk factor for cardiovascular disease. Dr. Cate also shares how vegetable oils can promote inflammation and more.

Are Products with Soy Lecithin Safe to Eat? (Like Chocolate & Ice Cream)

Table of ContentsPage Content:What is Lecithin and why is it in so many foods?Is soy lecithin bad (high PUFA)? What about Sunflower?How much soy lecithin is there in chocolate, ice cream and other products?Should I avoid chocolate or other foods that contain soy lecithin?What about other problems with soy like GMOs and phytoestrogens?What is Lecithin…

Can You Really Cook with Olive Oil?

The whole concept of smoke point may have been created by the edible oil industry to sell us their cheap, flavorless and (now we know) unfortunately quite toxic products.

List of Good Fats and Oils versus Bad

This page was created to serve as a resource listing good fats and oils versus bad fats and oils. The goal is to serve as a clearinghouse for discussions around why a given fat or oil is good or bad for human health, and to include recommendations for the healthiest cooking practices.

Can a low-PUFA Diet Really Increase Your IQ?

Learn how your diet may be affecting your IQ. We used to think that our IQ was fixed based on our genetics. But now we know that just as our genes can change during our lives, so can our neurons.

Migraine Headache Diet Treatments that Work: Cut Your PUFA Consumption

Today’s post will review two very interesting articles using very different sounding but actually similar strategies to improve migraine pain, low-fat vegan, versus targeted omega-3/omega-6 rebalancing

Overeating is Bad for Mitochondria: Calories Count, PUFA Calories Count More

We often overlook the fact that simply overeating puts a stress on the system (and PUFA-rich seed oils are the worst). I think we should include a fourth macronutrient: time between meals. The longer you can go without a meal or a snack or a beverage other than water, the healthier your mitochondria will be.

Birth Month and Autism Risk

An astute reader of Deep Nutrition points out the connection between holiday season indulgences in high carb and vegetable oil rich foods and increased risk of autism.

Vegetable Oil and Sugar Block Fat Burn and Mitochondrial Function

In 2017, mainstream medicine has taken giant step towards science backed advice. Meanwhile, sports nutrition still espouses that sugar is the best fuel for athletes, that low carb diets deplete glycogen stores, and that polyunsaturated fats are the healthy kind of fat.

Study Shows 100% Pre-Diabetes Remission With High Protein Diet

The first ever diet trial to 100% resolution of pre-diabetes with diet is neither low fat nor low carb. It’s high protein.

Fat Adapted Athletes Perform Better (video interview)

In this interview, we discuss the science behind real food-based, low-carb diets and sports performance. Additionally, we discuss the Four Pillars (common findings) of all healthy human diets

Cholesterol Is Good, The American Heart Association is Bad

Are you watching your cholesterol? Then you might be interested to read this story, describing the American Heart Association’s role in creating mass cholesterol-phobia, including evidence that they actively suppressed information that would have changed the course of medical history.

Study: PUFA-Rich Soy Oil Promotes Obesity and Fatty Liver

American’s are now consuming 1000x more soy oil than we did 100 years ago. Soy oil promotes oxidative stress, which makes it more fattening than it’s caloric content would suggest.

Confounding the truth about seed oils

If you are someone with heart disease, or are at risk for heart disease or simply want to make the right nutritional choices, this article will help you understand how statisticians have misled us into being afraid of natural saturated fats, and fats in general.

Paleo Diet Basics Part Two: Points of Contention

Today’s post is designed to air out some of the points of contention about Paleo, to best assure your Paleo plans result in you enjoying the success you are hoping for.

How Many Calories does Real Mayo Have?

Primal Blueprint recently started selling mayonnaise! So I’ve been eating a lot of mayo. And it dawned on me that my heaping teaspoons might be much bigger than the serving size that says 100 calories on the label. So I did a quick experiment to learn how many calories of mayo it takes to make canned tuna yummy.

Deep Nutrition Made Simple: START HERE

As a doctor, I’ve discovered that most chronic conditions occur because two thirds of our calories come either toxic seed oils or blood sugar elevating carbohydrates and sweets. These are themain ingredients in junk food. But many products containing these same unhealthy ingredients are disguised as health foods.

Are You Pop Paleo or Deep Paleo? Read this to find out.

Table of ContentsTo be, or not to be, labeled Paleo: that is the question.I’m thrilled to have been invited to be a speaker. And I think it’s time I made one thing clear:Canola oil may be the farthest thing from Paleo ever invented.So are you Deep Paleo? Here’s the test:ADDENDUM A superficial understanding of the…

Finally! A Shopping Guide for Healthy People

Rich Food, Poor Food, a new book by Jayson and Mira Calton, answers many of the practical shopping questions my health-conscious patients ask.

Foods High in Fat are GOOD for You for These Five Reasons

It seems counterintuitive that we need to eat (natural) fats to burn fat, but we do. You are what you eat, but that’s not the whole story! Many people on a low-fat diet lose their ability to burn fat, though they can still store it very effectively.

For Fast, Healthy, Lasting Weight Loss, Avoid Empty Calories

The best way to lose weight is to avoid empty calories. But even nutrient-dense foods can, for some people, be converted to body fat. Dr Cate shares solutions.

What Causes Gluten Intolerance?

The cause of gluten intolerance is not gluten. It’s immune system dysfunction. Learn why your immune system starts to go off track, and what you can do to right your immune system’s wrongs.

Advantages of Breastfeeding: Formula Contains Aluminum!

Breastfeeding but thinking of quitting? If you worry about aluminum in vaccines, you may be surprised at how much aluminum is found in popular infant formulas.

Canola Oil: The blob that ate butter, olive oil, coconut oil and peanut oil threatens American cuisine

Canola oil can constitute up to 1/3 of the calories in even a high-end restaurant meal, making your $50 plate a health hazard. Luke and I are on a campaign to get this trans-fat containing “neutral” oil out of restaurants. Take back the tables! Wouldn’t you love it if there were restaurants where people who care about their health could dine with confidence?

Is dairy paleo? Revising history with new persectives on flocks of goats, femur bones and feckless nutritionism

A few decades ago, people of Paleo were universally against dairy. Today, the attitude towards dairy is undergoing a transformation. Still, the official word on dairy is a luke-warm maybe rather than the resounding yes I think it deserves to be. I believe many of us can add dairy into our diet not just for good health, but also to more accurately reproduce a true Paleolithic era diet.

Can Coconut Oil Help With Weight Loss (Part 2)

My latest post on coconut oil can help you determine if you should add coconut to you diet for weight loss, thyroid health, or other metabolism-optimizing purposes.

Tiger Woods’ Concussion: What kind of recovery can he expect?

Tiger Woods recently had a single car accident–a nasty one. Reports say he was out for as long as six minutes when his wife found him. When a doctor hears that a patient has suffered a brain injury severe enough to alter consciousness, they get concerned. Loosing consciousness altogether suggests a significant insult to the…

The Natural Way To Prevent or Reverse Cancer

We used to think a single cell of cancer was a death sentence. New research shows how a healthy immune system can eradicate cancer cells.

Beyond Calories – How Food Affects Your Body

If you read Good Calories, Bad Calories, you know carb make you gain weight beyond the calories. Learn about another food with the same effect.

Vegetable Oil Is Everywhere

Look for vegetable oils on every label. They promote inflammation starting in the gut and extending into the arteries, nervous system, and everywhere else.

Salad Dressing: The Silent Killer

If your switch from fries to salads hasn’t helped you, it’s because you are pouring deadly trans fat onto those crispy, vitamin-rich greens.

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