
Dr. Steven Gundry is a physician, low-carbohydrate diet author, and former cardiothoracic surgeon. He has written several books, including *The Plant Paradox* and *The Plant Paradox Cookbook*, which promote a lectin-free diet. Lectins are a type of plant protein found in many foods, and Gundry claims that they cause inflammation, resulting in various modern diseases. Scientists and dietitians have criticized these claims as unsupported and pseudoscientific. Gundry's other books include *Dr. Gundry's Diet Evolution: Turn Off the Genes That Are Killing You and Your Waistline*, which offers a three-phase plan to reset genes, lose weight, and improve health. While some critics have praised the book as revolutionary and accessible, others have questioned the sustainability and safety of Gundry's diet advice, arguing that it contradicts mainstream nutritional science and established dietary recommendations. This introduction sets the stage for further exploration and analysis of the sustainability and potential impacts of Dr. Gundry's diet on human health and wellness.
| Characteristics | Values |
|---|---|
| Diet type | Low-carbohydrate, lectin-free |
| Philosophy | A break from traditional dietary wisdom |
| Goal | Improve health, happiness, and longevity |
| Food groups | Good fats and oils, resistant starches, healthy protein, intermittent fasting |
| Sample foods | Extra virgin olive oil, avocado oil, walnut oil, sesame oil, coconut oil, wild-caught fish, pasture-raised meat, leafy greens, cruciferous vegetables |
| Sample plan | The Plant Paradox, The Plant Paradox Cookbook, The Plant Paradox Quick and Easy |
| Criticism | Lack of scientific evidence, Contradicts dietary recommendations from established health organizations, Refuted by health experts |
| Supporters | Kelly Clarkson, Tony Robbins |
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What You'll Learn

Dr Steven Gundry's background and qualifications
Dr. Steven Robert Gundry is an American physician, cardiothoracic surgeon, heart surgeon, medical researcher, and four-time New York Times bestselling author. He graduated from Yale University with a Bachelor of Arts degree in 1972 and later earned an M.D. from Augusta University Medical College of Georgia in 1977.
During his 40-year career in medicine, Dr Gundry has performed over 10,000 heart surgeries and developed patented, life-saving medical technology. He has published over 300 articles and book chapters on his research. He is the author of several books, including "Dr. Gundry's Diet Evolution" (2008), which outlines his unique nutrition plan for wellness, and "The Plant Paradox" series, which focuses on the dangers of lectins in seemingly healthy foods. The Plant Paradox diet has sparked the terms "lectin-free" and "plant paradox" across global platforms and has been credited by celebrities such as Kelly Clarkson and Usher for their weight loss transformations.
Dr Gundry's philosophy centres around the belief that the modern diet lacks key energy sources that are essential for optimal health. He argues that the microbiome, or the "enteric brain," is the primary driver of our neuronal and brain function, and that a healthy gut is crucial for a healthy brain. In addition to his books, Dr Gundry also hosts a weekly podcast, "The Dr Gundry Podcast," which is one of the top 20 health podcasts worldwide.
Dr Gundry practices medicine at his waitlist-only clinics at the Center for Restorative Medicine and International Heart & Lung Institute in Palm Springs and Santa Barbara, California. He is an autoimmune disease specialist with over 45 years of experience in the medical field. He also serves as a Professor of Surgery and Pediatrics at Loma Linda University School of Medicine and has performed numerous infant and pediatric heart transplants.
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The Plant Paradox and lectin-free diet
The Plant Paradox diet, also known as the lectin-free diet, was first introduced in Dr. Steven Gundry's book, "The Plant Paradox: The Hidden Dangers in 'Healthy' Foods That Cause Disease and Weight Gain." The book claims that lectins, a type of plant protein found in many foods, are harmful and the cause of weight gain and various chronic diseases.
The diet plan cuts out or significantly reduces foods that contain lectins, including wheat, beans, potatoes, nuts, dairy, grains, fruits, and vegetables. Lectins are proteins that bind to carbohydrates and are not easily digested. According to Gundry, avoiding lectins can have drastic health benefits, improve digestive health, and reduce inflammation and intestinal damage.
However, the claims made in "The Plant Paradox" have been criticized by some experts. T. Colin Campbell, a biochemist and advocate for plant-based diets, states that the book contains numerous unsupported claims and fails to make a convincing argument that lectins are hazardous. Robert H. Eckel, an endocrinologist, argues that Gundry's diet advice contradicts established dietary recommendations and that his research lacks control patients, making it impossible to draw conclusions. Critics also argue that the Plant Paradox diet is unnecessary and potentially dangerous, as it may lead to nutrient deficiencies.
Despite the criticism, some individuals, especially those with preexisting digestive problems or lectin sensitivity, have reported positive results and improved digestive health on the Plant Paradox diet. It is important to note that not everyone is sensitive to lectins, but some people may react adversely, particularly to gluten or lectins in nightshade vegetables.
The Plant Paradox diet emphasizes the consumption of whole and nutritious sources of protein and fat. Dr. Gundry recommends consuming good fats and approved oils, such as extra virgin olive oil, avocado oil, and coconut oil, in unlimited quantities. He also suggests following intermittent fasting and consuming resistant starches and prebiotic fiber. Additionally, the diet encourages the elimination of highly processed foods and the inclusion of whole foods.
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The Food Pyramid and intermittent fasting
Dr Steven Gundry's diet is a radical break from traditional dietary wisdom. His philosophy centres on the idea that the modern diet lacks key energy sources that are essential for the digestive system. Gundry's diet has been criticised by some as being unsustainable and pseudoscientific. However, he has also received support from various media outlets, and his book, 'The Plant Paradox', has sparked viral trends such as "lectin-free".
Gundry's Food Pyramid is one aspect of his philosophy. It focuses on healing and strengthening the body, rather than simply counting calories. The first pillar of the pyramid consists of good fats and approved oils, which Gundry claims are the most important foods in our diet. These include extra virgin olive oil, avocado oil, walnut oil, sesame oil, and coconut oil. The second pillar introduces the idea of intermittent fasting, which gives the body time to process and digest food.
Intermittent fasting is a dietary approach that involves eating only during a specific window of time and fasting for the remainder. It has been shown to lead to weight loss and provide various health benefits, including improved mental clarity, better sleep, increased energy, and reduced inflammation. During the fasting period, some people consume detox tea to help burn fat and make healthy eating easier.
The Official Intermittent Fasting Food Pyramid provides guidance on which foods to eat during the eating window to support weight loss goals. It recommends a high-quality source of protein at every meal, as protein helps the body burn fat while maintaining muscle mass. It also suggests including resistant starches, such as green bananas and plantains, which feed friendly bacteria in the gut and aid in weight loss and disease prevention.
Additionally, the Intermittent Fasting Food Pyramid emphasises the importance of healthy fats and fibre-rich options. While it does not require cutting out certain food groups, it recommends avoiding highly processed foods and refined carbohydrates. For those who are carb-sensitive, it suggests limiting or removing starchy foods like lentils, beans, and sweet potatoes. It also recommends limiting high-sugar fruits like bananas, mangoes, and papayas.
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The three-phase diet and its challenges
Dr Steven Gundry is an American physician, low-carbohydrate diet author and former cardiothoracic surgeon. He has written several books, including the best-selling *The Plant Paradox*, which details his diet plan. The diet is based on the idea that lectins, a type of plant protein, cause inflammation and many modern diseases. He recommends avoiding all foods containing lectins and sells supplements that he claims protect against or reverse their effects.
Gundry's three-phase diet plan involves:
- The Teardown Phase: training the body to stop storing fat and curbing appetite, enabling weight loss while turning off "killer genes".
- The Restoration Phase: giving the body the resources to become healthy and strong.
- The Maintenance Phase: maintaining the results of the first two phases.
Gundry's diet has been criticised by some experts. T. Colin Campbell, a biochemist and advocate for plant-based diets, states that *The Plant Paradox* contains numerous unsupported claims and does not make a convincing argument that lectins are hazardous. Robert H. Eckel, an endocrinologist and past president of the American Heart Association, argues that Gundry's diet advice contradicts standard dietary recommendations. Furthermore, there is a lack of human studies to back up Gundry's claims, and some experts believe that the diet's elimination of entire food groups is unnecessary and potentially harmful.
However, Gundry's diet has also received support from some celebrities and individuals who have tried it. Kelly Clarkson, for example, has credited the Gundry diet with her weight loss. Additionally, some individuals have reported improvements in their health and weight after following the diet.
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Criticisms and unsupported claims
Dr Steven Gundry's diet has been criticised for its unsupported claims and pseudoscience. T. Colin Campbell, a biochemist and advocate for plant-based diets, states that The Plant Paradox, which promotes a lectin-free diet, contains numerous unsupported claims and fails to make a "convincing argument that lectins as a class are hazardous". Robert H. Eckel, an endocrinologist and past president of the American Heart Association, argues that Gundry's diet advice contradicts standard dietary recommendations and that it is not possible to draw any conclusions from Gundry's own research due to the absence of control patients in his studies.
Writing in New Scientist, food writer and chef Anthony Warner notes that Gundry's theories "are not supported by mainstream nutritional science" and that evidence of the benefits of high-lectin-containing diets "is so overwhelming as to render Gundry's arguments laughable". Registered dietitian Amy Goodson has also criticised the diet, telling Women's Health that "anytime a diet starts to take out a massive amount of food groups, it’s a little more faddish by nature" and that "the benefits of eating whole grains and vegetables, which provide vitamins, minerals, and fibre, significantly outweigh the risk that a small amount of lectin will cause GI issues".
In addition to these criticisms, commentators in the British media have cited a poster abstract published by Gundry in Circulation in November 2021 as evidence of the mRNA vaccines being unsafe. The abstract claimed that mRNA vaccines against the COVID-19 virus "dramatically increase" inflammation, which was associated with heart disease. However, it was not peer-reviewed before publication, and the American Heart Association issued an expression of concern, warning that the abstract may not be reliable due to the absence of statistical analyses and the use of only anecdotal data. The Reuters Fact Check team concluded that it "did not provide reliable evidence that mRNA vaccines increase the risk of heart disease".
Despite these criticisms and unsupported claims, Dr Gundry's diet has gained traction, with celebrities such as Kelly Clarkson crediting it with her weight loss. The diet focuses on healing and strengthening the body, promoting good fats and approved oils as the most important foods, followed by the idea of intermittent fasting. It also includes resistant starches, which feed friendly bacteria in the gut, and encourages the consumption of animal-based proteins such as wild-caught seafood and pastured poultry.
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Frequently asked questions
Dr Gundry's philosophy centres around the fact that the modern diet lacks key energy sources that the digestive system needs. His philosophy is a radical break from traditional dietary "wisdom", which he believes has failed many Americans.
Dr Gundry's diet is a challenging but intriguing nutrition guide that initially aimed to improve the heart health of his seriously ill patients. The diet is gene-based and focuses on turning off genes in the human body that lead to weight gain and chronic disease. It involves three phases: the first breaks reliance on high-carb, sugar-laden foods; the second introduces the idea of intermittent fasting; and the third gives genes the resources to make you healthy and strong.
Critics of Dr Gundry's diet include T. Colin Campbell, a biochemist and advocate for plant-based diets, who states that The Plant Paradox contains numerous unsupported claims. Robert H. Eckel, an endocrinologist and past president of the American Heart Association, argues that Gundry's diet advice contradicts mainstream dietary recommendations. Food writer and chef Anthony Warner notes that Gundry's theories "are not supported by mainstream nutritional science".
Dr Gundry's diet may be sustainable if you are committed to following its three phases. However, the strict requirements of the diet may be too extreme for some, and Gundry's explanations of his theories are occasionally confusing.











































