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.
We’ve all grown up equating sugar to energy, but new research suggests our bodies are engineered to run on fat…
Fatburn Fix Saves Life of Type 2 Diabetic
I would like to thank you for literally saving my life. Back in February, I had to be hospitalized while on vacation in Phoenix with an A1C of 11% and had to start taking 2 types of insulin and 2 other meds. I read the Fatburn Fix in April, and followed the program to a tee, and I’m down by 15 pounds, 6.8 A1C, and only one once weekly diabetes medicine. Prior to reading the book, it was almost impossible for me to lose weight as a diabetic.
I feel free
For the last month, I have really been reading all labels on everything. I have completely remove those 8 oils you talk about. I must tell you, I feel great! I have more energy and I am now 197 lbs (have always been around 205 to 210lbs). I eat potatoes with real butter, grass fed steak, pasta with the right toppings. I eat everything! I seem to crave less sugar. I love it!
I feel so much better
I had terrible aches and pains everywhere in my body, my hands, shoulders and knees. I feel so much better and the way I feel is motivating me every day! Thank you
Mike Deb Wootan Burcin
Better than ever
I am an anesthesiologist in Orlando and a huge fan of both of your books! I have been incorporating your principles for the last 10 months and feel that my health is better than ever.
Marnie Robinson, MD
My allergies disappeared
The biggest difference for me (and a surprising one) is that my allergies have almost completely disappeared! This is a big deal for me, because I’ve had allergies most of my life and they have often affected what I do which is a teaching music in [a public school district]. In general, I feel much better and have more consistent energy throughout the day.
Heart Palpitations have Stopped
I’ve lost 20+ pounds (also fasting 16-24 hours daily) and haven’t had palpitations except for one occasion — I had a mini bag of Fritos for the first time in July. And, I feel better now on a daily basis than I ever did all through college.
Deep Nutrition and Fatburn Fix reader
I’ve lost over 50 pounds
I’ve lost over 50 pounds. I’m 56 years old. Cutting processed food and unhealthy fats from my diet was one of the first things I did on my health recovery journey...I went cold turkey off the bad oils. Emptied my pantry into the trash and just started eating real food
Mitzi Wilkinson Champion
Knowledge I didn’t know I needed
Your Fatburn Fix book is amazing, my friend. Thank you! I’m an Functional Nutritional Therapy Practitioner and I know my stuff. This is the extra layer of knowledge I didn’t know I needed. Well done!
Fatburn Fix reader
Lost a solid 20 lbs and my bloodwork is great
I have lost a solid 20 lbs and my bloodwork (after 3 months of eating your way) was even better! I was metabolically healthy (per your book) before I read your book, but barely. Lowering my weight, sealed the deal! I have been talking about you and your book to anyone who will listen...Thank you for all you’ve done and what you continue to do! You are changing lives for the better!
FatBurn Fix reader
Lost 20 lbs I could never shed
I love your Fatburn Fix! Has helped me so so much! I have had the dreaded weight all my life - 20 or so pounds I could never shed. I have lost that now. I only eat 2 meals a day lunch and dinner with a glass of milk or cappuccino around 4 to hold me over. No snacking and not bad oils. It has been the key to unlocking my fatburn. I work out in the am and believe I am burning fat for energy not from food!
I feel great
My waist is four inches smaller. I feel great and many of the minor aches and pains that I had (knees and lower back) are gone. Also, my muscle tone is amazing, even though I have not increased my workout routine.
Completed Dr Cate's online course
The go-to for strength and conditioning coaches
Whenever I advise my clients about eating to perform I go straight to what I have learned from Dr. Cate. Her book Deep Nutrition has become the go-to for strength and conditioning coaches across the country.
Major League Baseball Agent with WME Sports
Dismantles the lie
Dr. Cate dismantles the lie that seed oils are healthy, which may the biggest lie about nutrition and health because it’s so insidious.
Ken D Berry, MD
Author of Lies My Doctor Told Me
She knows the chemistry
Dr. Cate alerts us to the harms of seed oils and she’s convincing because she knows the chemistry better than anyone.
Dr. Drew Pinskey, MD
Globally recognized internal medicine and addiction medicine specialist, media personality, LoveLine Host, and New York Times bestselling author
No one is better at communicating nutritional truth
Dr. Cate has had the single greatest impact on how we talk to people about fueling for both performance or durability. While we all are a little unique, the foundational principles of human nutrition are immutable. If you are looking to create a more durable, resilient body, no one is better at communicating nutritional truth than Dr. Cate.
Dr. Kelly Starrett
Physiotherapist coach and New York Times and Wall Street Journal bestselling author
Highly recommend The Fatburn Fix
Dr. Shanahan has had a significant impact on my practice of medicine. I am known as a Low Carb Doctor, but I never really appreciated the negative effects of processed seed oils on the health of my patients. I highly recommend The Fatburn Fix to my patients and have a loaner copy in my waiting room. It is amazing how quickly blood sugars and overall health improves with cutting seed oils. It is not just about the carbs!
Dr. Brian Lenkzes, MD
CEO of LowCarbMD San Diego, co-host of Low Carb MD Podcast and host of Life's Best Medicine Podcast
Respected in the sports world
Dr. Cate reordered my diet when I was with the L.A. Lakers, and the benefits, for me personally, were felt immediately and have served me to this day. I’ve come to take real food so seriously I started a small family farm. I know of no M.D./nutritionist more respected in the sports world than Dr. Cate Shanahan.
Brought seed oil issue front and center
Cate brought the seed oil issue front and center. Healthy fats matter. So much so that I created an entire product line to swap out bad fats with good.
Founding Father of the Primal/Paleo Movement
Optimal health starts with food
If you want to understand how optimal health starts with food, start with Dr. Cate. Her book Deep Nutrition leaves you with an appreciation of the profound relationship between our genes and the planet, inspiring us to be good shepherds of both.
Attribution author of The Whole 30
Helped me with endurance
Deep Nutrition really helped me with endurance. I started to feel better as a player. I was able to run more, I was able to be more active …and I just decided to keep going with it to this day.
Silver bullet for me
Dr Cate’s teachings helped me lose 60 pounds like it was nothing. It was like a silver bullet for me.
Paul Grewal, MD
Dr Grewal Internal Medicine, MD, author of Genius Foods
Radically improve your health…
Dr. Shanahan has provided a solid reference that deserves a place in the library of anyone who is seriously interested in nutrition. Her perspective on the vital role that healthy fat has in our diet is novel and, if implemented, can radically improve your health.
Dr. Joseph Mercola
Author of Fat for Fuel and Founder of Mercola.com
Pull up a chair…
I have based my work on the idea that getting the right kinds of healthy fats into your body and avoiding the worst fats is essential to optimal health. I've interviewed dozens of the world's top experts about this, and I know of no one who speaks more eloquently on this topic than Dr Cate. If she’s talking fats, pull up a chair. Take notes.
Author of the Bulletproof Diet
The key to unlocking my fatburn
I love your Fatburn Fix! Has helped me so so much! I have had the dreaded weight all my life - 20 or so pounds I could never shed. I have lost that now. I only eat 2 meals a day lunch and dinner with a glass of milk or cappuccino around 4 to hold me over. No snacking and not bad oils. It has been the key to unlocking my fatburn.
Saved my life
I would like to thank you for literally saving my life. Back in February, I had to be hospitalized while on vacation in Phoenix with an A1C of 11% and had to start taking 2 types of insulin and 2 other meds. I read the Fatburn Fix in April, and followed the program to a tee, and I’m down by 15 pounds, 6.8 A1C, and only one once weekly diabetes medicine.
Tears of joy
I'm crying tears of joy and appreciation for all you've done for me and my health! Without Deep Nutrition and Fatburn Fix, I would literally still be in the vicious cycle I'd been fighting all my life! In a nutshell - I am no longer a compulsive overeating addict suffering under the crushing 'thumb' of all food and alcohol.
I recently attended a fascinating series of meetings in Baltimore, MD accompanied by the top physiology and weight loss specialists in the country. Although I’d long known sugar was dangerous and advised limiting all carbs to 50-100gm per day, going into the meeting I’d assumed we needed some. Specifically, I thought our brain cells required glucose because that’s what I learned from biochemistry books, physiology books, and other medical texts.
During the meeting, however, I became convinced by the abundance of newer lab and clinical data showing that brain cells, and the vast majority of other cells in the body, actually prefer a product of fat metabolism, called ketone bodies. The power plants of the cell that burn oxygen to produce energy in the form of ATP, called mitochondria, function poorly in the presence of another chemical, called malonyl-coA, which comes from the breakdown of glucose. Forcing mitochondria to deal with malonyl-coA overwhelmes their ability to control the high-energy electrons used in the making of ATP, and the result is a release of free radicals. Free radicals can cause DNA mutations as well as enzymatic destruction.
A minority of cell types actually do require glucose, specifically a few types of cells in the liver and cells without mitochondria (e.g., red blood cells). All other cells work perfectly well burning fat and special kinds of fat-breakdown molecules called ketone bodies. According to world-renowned metabolism expert Dr. Mary Vernon, we need 30 gm (2 Tbsp) of glucose per day to keep those cells that prefer glucose running properly. That small amount can readily be supplied by the conversion of protein to glucose in a metabolic process carried out through a cooperation between the liver and kidney, called gluconeogenesis.
What about Adrenal “Burn-Out”?
Somebody got the idea circulating that low-carb diets might cause adrenal “burn out,” and a few readers have asked about this. I’ve looked everywhere and I can’t find any data supporting the theory. I do find a physiologically plausible mechanism by which carb consumption may cause adrenal gland problems. Take a look at the diagram I’ve adapted here (below) from a lecture presented by Dr. Jeff Volek. It illustrates the mechanism by which high carb diets produce energy swings.
It’s important to consider that, if you have a metabolism that’s been running on glucose for decades, your metabolism is not in a healthy state and therefore will need some time to realign itself with the input of proper nutrition. You’ll need to give your body some time to adapt to the new fat-burning state. A whole new set of enzymes will need to be re-manufactured, which can take a few weeks to accomplish. For those with metabolisms in serious trouble, I typically advise going low-carb one meal at a time giving each mealime two weeks.
Bottom line: All the latest science contradicts the assertion that we need carbs—any carbs—in our diets. This isn’t to suggest that everyone needs to remove carbohydrates entirely from their diets. Indeed, there may be some as-yet undiscovered benefit to dietary sugar. Today’s article is not meant to suggest that we’d all be better off with zero carbs in our diet. It is, however, meant to point out that very few of our cells need dietary sugars for energy, and therefore the old idea that we need to include carbs in our diets or we’ll feel tired all the time, is running on empty.
ADDENDUM: Thanks to Paul Jaminet, Matt Stone, Cheeseslave and others, there has been a much-needed awareness-raising of the fact that we can overdo every good thing. Since originally posting, I’ve added the following caveat:
I believe that just as we enjoy a change of pace from time to time, so does our metabolism. There may be benefits from consuming enough carb to kick you out of ketosis (50-120 gm per day) on occasion. I suspect our ancestors enjoyed seasonal fruit binges from time to time, for example, and a rare (emphasise RARE) infusion of simple carbohydrate may flood your body with a variety of different sugar molecules in ways that aid fertility, and support tissues that require sugar molecules for structural purposes (like tear and mucuous production by the eyes and digestive system). Just remember, whatever as-yet unexplained benefit carb-flooding may offer, it may also temporarily stall weight loss .