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Superfuel: Ketogenic Keys to Unlock the Secrets of Good Fats, Bad Fats, and Great Health

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New York Times best-selling author Dr. Joseph Mercola teams up with cardiovascular expert Dr. James J. DiNicolantonio to cut through the confusion about how dietary fats affect our bodies--and set the record straight on how to eat for optimal health.

Should you cook with coconut oil or vegetable oil? Eat butter, cream, or olive oil? Supplement with fish oil or flax oil? Sometimes it seems as if everyone has a different opinion on these crucial questions--but this book holds real answers. Best-selling author and teacher Dr. Joseph Mercola teams up with cardiovascular expert Dr. James DiNicolantonio to cut through the confusion about how dietary fats affect our bodies and set the record straight on how to eat for optimal well-being.

Dr. DiNicolantonio, an internationally known and respected scientist, has spent nearly a decade studying the effects of different fats on the body. Dr. Mercola is one of the world's leading authorities on natural health. In Superfuel, they've gathered a wealth of information and insight in a form that's both impeccably researched and highly accessible.

You'll read

• The many health problems supposedly caused by saturated fat--that actually aren't
• Why the so-called healthy vegetable oils are actually making you sick and fat
• The optimal ratio of omega-3 to omega-6 fats in your diet
• Foods that help resolve inflammation, increase longevity, and fight or prevent chronic illness
• A cyclical ketogenic eating plan that keeps your body burning fat as healthy fuel
• Supplemental fats such as fish oil, krill oil, and flax oil--what to take and how to choose
• Which oils you should cook with, how to use them, and why
• And much more

Drawing on Dr. DiNicolantonio's firsthand research at Saint Luke's Mid America Heart Institute, as well as hundreds of groundbreaking studies from the medical literature, Superfuel will give you the facts you need to optimize your fats and your health.

237 pages, Hardcover

Published November 13, 2018

219 people are currently reading
459 people want to read

About the author

James DiNicolantonio

58 books144 followers

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5 stars
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Displaying 1 - 23 of 23 reviews
221 reviews2 followers
December 30, 2018
I’ll save some time for those Interested in reading this book. Summary: vegetable oils are bad. More omega 3 less omega 6 ( but you need both). You’re welcome.
This entire review has been hidden because of spoilers.
Profile Image for Scott Jiles.
31 reviews10 followers
January 17, 2019
Big Tobacco meets Big Vegetable Oil. Very interesting. I will never look at an ingredients label the same way again.
92 reviews3 followers
August 14, 2019
We have more calories available to us today than ever before, but fewer nutrients. We are, as they say, overfed but undernourished.

Super Fuel by Dr. James Dinicolantonio and Dr. Joseph Mercola uncovers myths and misconceptions about dietary fat in the society. The book deals with various misconception about dietary fat in the society, and debunks it systematically and scientifically to improve our understanding of dietary fat. The understanding of fat and nutrition is crucial for our health.

What are Fats
Fats are long strings of carbon atoms joined together with extra space for other atoms to attach them. When all the extra spaces are filled, the fat is saturated with hydrogen atoms. When two or more of the carbon atoms in a fat double up on each other, it crowds out room for hydrogen and is said as unsaturated. When there is just one double bond in the fat molecule, it’s a mono saturated fat. When there are two or more double bonds, it’s a poly saturated fat. The oil that we eat are combination of saturated, unsaturated and poly saturated fats. No fat or oil is entirely saturated or entirely unsaturated. The more saturated a fat is, the harder it will be at colder temperatures like Butter, Ghee etc.

The understanding of various types of fats i.e. saturated, unsaturated, trans fats, and its impact on our health is important.

Myth about Fat
There is the misconception that the saturated fats that come from animals, such as butter, Ghee etc contains lots of fat & it’s not good for health, and the polyunsaturated vegetable oils such as corn, soybean, sunflower oils etc are health promoting. Supermarket shelves are full of products marketed as fat free, low fat products, but contrary to the negative connotation associated with dietary fat, fat is essential for health, immunity and weight loss. Due to convenience and ease of production in the market & growing demand for cheap food, industrial seed oils are being marketed as healthy for heart in comparison to sources of animal fat.

Market forces and incorrect observational hypothesis resulting in misconception & myth about fats
The American Heart Association (AHA) recommendation in 1961 based on incorrect observational hypothesis that if high cholesterol levels were a major cause of heart disease, and if saturated fats increases cholesterol levels, saturated fats must therefore cause heart disease. This incorrect recommendation resulted into the strengthening of the myth about fats. Saturated fat was inappropriately demonized as the dietary culprit causing heart disease. It gave space to the consumption & growth of industrial oils seeds.

The recommendation to replace saturated fat with omega-6 that comes with industrial seed oils have likely increased the risk of heart disease and other chronic disease. The addition of industrial trans-fat i.e. when liquid vegetable oil goes through process of hydrogenation i.e. addition of hydrogen atoms has worsened the consequences of industrial seed oils. The popularity and consumption of partially hydrogenated fats grew exponentially due to aggressive marketing and ease of its production. The omega-6, found primarily in vegetable and seed oils was mistakenly anointed as healthy for heart.

But later on it was found that intake of low omega-3 was the more likely factor contributing to high cholesterol, and not saturated fat per se.

Evolution of Human Body and change in dietary fats
Industrial oils were not part of the human diet during the vast majority of our evolution. Today hundreds of thousands of calories are available in convenience at the nearest grocery store or we can order online. But it was not always like that. Human body has evolved over thousands and thousands of years with natural disasters, wars and disruption in diet. Under such uncertainty, fat was prized as an energy source.

With the domestication of wild plants, the demand for food to be produced quickly and cheaply grew. Another important change that happened in the food supply is that transition from eating wild plants & wild animals to domesticated ones, grown in mono-cropping system/ animal farm.

The fat that we consume later goes on to form the cell membranes, and it can literally change us from inside out. The trans-fat that we eat changes the composition and function of cells inside us.

Abundance of omega-6 and scarcity of omega-3 in Modern Food
Abundance of omega-6 and the scarcity of omega-3 in the modern food supply are major contributors of many chronic diseases. Our body needs a lot more omega-3 fats than we are getting, and this omega-3 deficiency can result into many ailments.

Modern day plants are lower in omega-3 than wild vegetation, and domesticated animals contains more omega-6 and less omega-3 than wild animals and less omega-3 than animals that are grass fed or allowed to forage on pasture. This high omega-6/omega-3 ratio might lead to diabetes, weight gain, obesity and other chronic diseases The grains contains high omega-6 while grasses are higher in omega-3.

High omega-6/omega-3 & impact on health
Population around the world with a low dietary omega-6 to omega-3 ratio experience extraordinary health. By studying the population of India, Japan, Greenland, Kitava and Israel, researchers have determined that diets high in saturated fats and omega-3, but low in omega-6 fat, produce lower rates of inflammation, cancer, type 2 diabetes and heart disease.

In India based on research findings of S L Malhotra in, he found that between 1963 and 1964 the incidence of heart attack was over seven times in southern India compared to northern India. North Indians used to consume 19 times more fat than those in the south. But the difference was the type of fat. At the time of study, animal fats, including dairy made up majority of dietary fat in northern India, whereas oil seed were favored in the south. In south, they had a low fat intake, with most of it coming from peanut and sesame oils. In contrast with the north, where fat intake was 23 % of total calories, and most of it came from ghee,milk fat and milk products like yogurt, lassi. In the 1950s, death from heart disease was extremely rare in the north of India compared to the western world.

The main cooking fat in the traditional Indian diet were ghee and coconut oil, which are both high in saturated fat, and mustard oil (high in mono saturated fat and omega-3). By the 1990s, almost all the traditional cooking fats in India were replaced with omega-6 oils due to the promotion of vegetable oils for low cholesterol level. The fats consumed by the health-conscious urban elite are mostly seed oils that are marked heart healthy. It has resulted in the spread of cardiovascular diseases and diabetes.

The most substantial changes in the modern food supply are the dramatic reduction in omega-3 intake and the resulting skewing of the omega-6/omega-3 ratio.

The contribution of Fred Kummerow in debunking the myth about trans fat
Fred Kummerow, a researcher at the University of Illinois, analyzed autopsy samples from individuals who died due to heart disease. After examining the samples, he was able to locate artificial trans-fat lining the tissues of human heart. Kummerow published his findings in Science, a prestigious academic journal. Rather than inciting further research and discussion, his findings were met with contempt.

But Kummerow was determined to further explore the effects of trans fat. He continued his crusade against trans fats for more than 50 years. His findings were even rejected even on flimsy grounds that he was a biochemist and not a cardiologist. The processed food industry collaborating with scientist often heckled his research in scientific conferences. For many years he was the lone researcher fighting against trans-fat.

Gradually with many research showing a direct link between the consumption of trans fat and heart disease, the relationship was established by the scientific community vindicating stand of Kummerow about trans-fat.

It took many years for Professor Kummerow’s research to be translated into regulatory action. The American Heart Association began warning about trans fats around 2004.

Fred Kummerow decided to submit a detailed petition to the Food and Drug Administration (FDA) in 2009 demanding ban on trans-fat. The issues was dragged for long, and in 2013 the companies were given a 5 year grace period to remove trans fats from food instead of outright ban. Finally, in 2015 fifty-eight years after Professor Kummerow published his findings, Food and Drug Administration (FDA) ruled that trans fats were not considered safe and could no longer be added to food.

Foods with rich omega-3
Meat, Cheese, yogurt, and other dairy products sourced from grass-fed animals are good sources of omega-3.
Seafood also contains high omega-3 fatty acids.
The story gives us a lesson that we should be careful in tampering with the food given to us by the nature.
Profile Image for Salma Elsoufy.
43 reviews
January 19, 2025
✍️أنت لستَ فقط ما تأكله، بل ما قد أكله ما تأكله.✍️
▪️عنوان الكتاب: الوقود الخارق
▪️المؤلفان: د. جيمس دينيكولانتونيو - د.جوزيف ميركولا
▪️ترجمة: د. محمد ياسر حسكي - لين فتيح
▪️عدد الصفحات: 336
▪️الكتاب يتناول تعريف الدهون، وما الفرق بين دهون الحيوانات، والزيوت النباتية، وأيضًا تناول الكثير من المعلومات حول أوميغا 3 وأوميغا 6، والمشاكل المصاحبة لاختلال النسب بينهم في الجسم.
▪️الكتاب مفصل جدًا ومفعم بالمعلومات والدراسات والأرقام والنسب، ولكن في نهاية كل فصل يوجد ملخص بسيط لأهم النقاط، وأيضًا ستجدون أن أغلب المعلومات الدقيقة والحرجة مكتوبة بنوع خط سميك وغامق على عكس باقي الكتاب.
▪️في نهاية الكتاب ستكون على علم بكل ما يجب تناوله وكيفية اختياره، من زيوت ومكملات وأطعمه، لتعزز صحتك.
▪️في رأيي هذا الكتاب مناسب فقط للأشخاص الذين لديهم خلفية علمية أو الذين لديهم رغبة حقيقة في أن يكونوا ملمين بكل المفاهيم الخاطئة والصحيحة حول الدهون بكل حذافيرها.
▪️ لأول مرة أقرأ كتابًا علميًا أو طبيًا قام فيه المترجم بترجمة الكثير من المصطلحات الطبية دون كتابة المعنى باللغة الإنجليزية بين قوسين، مثلًا قابلتني كلمة "التصلب العصيدي" أكثر من مرة، وأنا مخي فارغ تمامًا اتجاه هذه الجملة، فأنا لا أملك أي تعريف لها في دماغي، ولكن بمجرد ترجمتها ومعرفة أن هذا المرض هو نفسه "Atherosclerosis" مباشرًا وضح لي الأمر. من داخلي أنا مدركة أن هذا أمر غير صحيح ولا مقبول، ولكن من ناحية أخرى، شئنا أم أبينا، في عصرنا الحالي دراسة العلوم باللغة الإنجليزية هي المستقبل وهي الأساس.
▪️اقتباس ✍️:
"في متناول أيدينا اليوم سعرات حرارية أكثر من أي وقت مضى، ولكن مغذيات أقل. لدينا، كما يقولون، إفراط في الأكل ولكن سوء في التغذية".
▪️تقييم الكتاب: 4/5 ⭐⭐⭐⭐
275 reviews3 followers
March 31, 2019
A good, concise read. I appreciated that they summarized their points at the end of each chapter, because I admit to sometimes skipping through the more technical bits. This book focuses on another aspect of improving our insulin resistance, which is getting the correct types of fat into our diet. Together with controlling when we eat (intermittent fasting) and reducing carbohydrates, this can make a huge difference in our health. The right types of fat also have a huge effect on the inflammation levels in our bodies.

This book provides a good explanation of some of the conflicting information around Omega-3 fats that has recently cropped up. Basically, boosting your Omega-3 can be beneficial, but only if you also reduce your Omega-6 fats. The ratio of the two is key.
Profile Image for Joao Reis.
46 reviews2 followers
January 4, 2019
Unfortunately, the book turned out to be a SOLUTION cures all diseases in the GALAXY story. What started to be a very educational and entertaining lesson of Fats, their biochemistry and history in our society, turned out to be a winner takes all. The author was careful to analyse studies against the Omega 3 advantages ideas but then spend the rest of the book making claims. I truly believe Omega 3 is essential to our health, but this book did not help to reinforce my belief.
I gave it 2 stars because of its educational content.
Profile Image for Shelley Krupa.
16 reviews5 followers
February 7, 2020
If you're looking for a book that helps explain how to make sense of the ketogenic way of life, this book is great. I enjoy how easy it is to understand the complexities of the diet and how fats and salt make a huge difference. I wish every person struggling with diabetes, HTN, early Alzheimer's, etc.
would be given this book. I also wish every family practitioner had it as a required reading. I'm glad I read it when I first started the journey to keto eating if I hadn't I feel like I may have given up.
Profile Image for Neil.
168 reviews3 followers
February 2, 2019
A fairly dense book with a lot of detail about dietary fat in all its permutations. Great advice, much of it covered in other recent reviews of the same ilk. I have been following much of these directions for some time now, after its reading, shall be adding ground flaxseed and krill oil to my usual routine. Lots of references supplied for those inclined.
Profile Image for عمر الحمادي.
Author 7 books705 followers
October 14, 2023
استطيع القول أن هذا الكتاب أنصف الدهون وأخرجها من التصنيف السلبي الذي وضع جميع أنواعها في سلة واحدة... رغم أن بعض ما ورد في الكتاب لم يتم اثباته بالشكل الكافي ولم يتم تضمنيه في الارشادات الصحية بعد، إلا أنه من الممكن أن يكون مفتاحاً لتصحيح كثير من افتراضاتنا السابقة حول الدهون بسبب أفكار سابقة ثبت عدم دقتها وصحتها ومازال البعض يتشبث بها.
239 reviews1 follower
January 30, 2019
If you want to hear a recap of the diet heart hypothesis fiasco and the arguments for why you need more omega 3 fats in your diet, preferably from Krill supplements, then this is the book for you. Otherwise, no need to read.
5 reviews
April 17, 2019
Great book!

It was a very informative book about the myths of many things especially about vegetable oils and how they are the responsible for so many chronic illnesses. I enjoyed it !
8 reviews
March 29, 2020
Good review of historical fact guidelines

Worth reading through, but would prefer more of a bulleted presentation. Can't say that I will be a consumer of fish oil, but will use organic olive oil, coconut oil and tallow.
113 reviews
November 12, 2024
There is a lot of good data on Omega 3s vs 6s. There's enough information to make you paranoid about what kinds of fats you eat and where they come from. Eat more good Omega 3s and less Omega 6s and everything will be better.
549 reviews
May 19, 2019
I just skimmed this book, stopping at parts that interested me. Some of the research is fascinating. The more we "know" about diet and nutrition, the less we know.
Profile Image for Cindy.
51 reviews
January 19, 2020
Although very detailed oriented, Dr. Dinicolantonio does lay out an understandable and easy to follow approach to changing your diet for the better. Highly recommend this.
Profile Image for Kamal Hwail.
7 reviews
December 16, 2021
The most comprehensive guide to using fats as medicine to heal from chronic disease.
69 reviews2 followers
July 29, 2022
We are what we eat

Simple changes to our diet can have a profound positive effect upon our health. Omega 3 is one of those profound changes. It is superfuel to our cells.
Profile Image for Stacy.
296 reviews
September 25, 2023
Good reminders - nothing new. Don’t eat seed oils. Read labels. Eat high quality meat and fish. Don’t eat processed foods.
25 reviews
February 6, 2026
Maybe I’m not scientific enough. I think this book could have been written in 1 chapter. It just seems to repeat itself every chapter. Good message but redundant.
Profile Image for Jill Bowman.
2,248 reviews20 followers
January 8, 2022
If you’ve read any books about health written by ‘the usual keto suspects’ in the past few years you have probably read most of this book. Though there’s quite a bit of info about the smaller elements of nutrition the entire book can be summed up as “Stop Eating Vegetable/Seed Oil”.
Look at ingredients. Don’t eat processed foods. Don’t worry about consuming good, healthy animal or fruit (olive, avocado) fats.
Though I didn’t find much I didn’t already know, it was a nice reminder that I’ve gotten to where I aimed for nearly 5 years ago now.
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