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Jason Fung, Nephrologist

Jason Fung, MD is a nephrologist and a founder of the Intensive Dietary Management Program, which provides a dietary treatment program for type-2 diabetes (T2D) and its comorbidity obesity.[1] He has gone public as to the pernicious guidelines treatment of T2D in 4 effective ways.  One, he lectures physicians on the dietary cure of T2D, that T2D is only a progressive condition when managed with drugs, and that the core of the problem is insulin resistance which is only exacerbated by the Western diet and by the drugs used to manage hyperglycemia.  Two, he has recorded over a dozen lectures on YouTube on diabetes, diet, and obesity (and a 3 other unrelated topics, salt, calcium supplements, and bad pharma).  Three, he has a blog where he posts at least twice monthly journal quality articles on diet related issues.  Four, he has published May 2016, The Obesity Code:  Unlocking the Secrets of Weight Loss.  It has the highest readers rating on Amazon, 5 stars 189 ratings in first 3 months.  He is the leading academic authority on obesity, type-2 diabetes, and their fix. He explains: “that which is caused by diet can be fixed by diet.”    

[1] The clinic has set up a program to work with other physicians in curing type-2 diabetes with diet

Dr. Fung, who relies on the journal evidence to unlocked the cause of the obesity and type 2 diabetes pandemics and their fix.  Briefly, the cause is the western diet with its high fructose sugar and high refined carbs.  The fructose is in part converted to fat in the liver (the only place it is metabolized) and the insulin because of the high carbohydrate diet causes some of that fat to be stored in the liver.   Eventually those with an unhealthy diet and lifestyle developed a fatty liver, which causes insulin resistance.  This higher than normal insulin causes excessive fat storage (weight gain), which can progress to type-2 diabetes.  The fix is a low carb diet with short-term fasting or alternate day fasting.    

For links to his lectures go to

His clinic offers a long-distant program info at

“The Long Distance IDM Program (LDP) is available for patients living outside the Province of Ontario, who wish to receive dietary education and counselling based on the IDM Program’s philosophy from Megan Christie.  Please note that Megan (Christie) Ramos is a clinical researcher and educator, and not a medical physician, nurse or registered dietician.  She will not be able to adjust your medications or give you any medical advice.  Patients seen in the Long Distance Program will not be under the medical care of Dr. Jason Fung.  If you wish to participate in this program, your own physician must monitor your medications, blood sugars and blood work.” 

His own bio:

I grew up in Toronto, Ontario, Canada. I went to the University of Toronto at age 17 to begin studies in Biochemistry. By 23, I completed medical school at the U of T, and began my Internal Medicine residency there.

Finishing my specialty of Internal Medicine, I chose Nephrology (kidney disease) as my sub-specialty. Each field of internal medicine draws its own personalities. Nephrologists had the reputation of being a ‘thinkers’ specialty. There are a lot of intricacies of fluid and electrolytes, and I enjoyed these puzzles. I studied Nephrology at the University of California, Los Angeles mostly at Cedars-Sinai Hospital and the VA Wadsworth. Looking back, I realize that it must have been a little disconcerting to patients in the hospital to be treated by a doctor who looked about 18 years old.

I returned to Toronto in 2001 to start my career in Nephrology, where I still have both an office and hospital practice. Type 2 diabetes is by far and away the leading cause of kidney disease, and I treat many hundreds of patients with this disease. Many also have obesity. By the early 2010s my interest in nutrition, combined with my professional focus on obesity and T2D had led me directly to the diabesity puzzle.



The Aetiology of Obesity Part 2 of 6:  The New Science of Diabesity:  61 min, 7,200 views, Dr. Jason Fung; lets the evidence prove his points very good