Richard K. Bernstein

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For other people named Richard Bernstein, see Richard Bernstein (disambiguation).

Richard K. Bernstein (born June 17, 1934) is a physician and an advocate for a low-carbohydrate diabetes diet to help achieve normal blood sugars for diabetics. Bernstein has type 1 diabetes. His private medical practice in Mamaroneck, New York is devoted solely to treating diabetes and prediabetes. He is a fellow of the American College of Nutrition, the American College of Endocrinology and The College of Certified Wound Specialists. He is the author of six books on diabetes and normalizing blood sugars.


Early life[edit]

He was born in New York City in 1934.[1] In 1946, at the age of twelve, Bernstein developed type 1 diabetes. For more than two decades, Bernstein was what he calls, "an ordinary diabetic"—one who dutifully followed doctor's orders. Despite his diligence coping with the condition, the complications from his diabetes worsened over the years, by the time Bernstein reached his thirties, many of his body systems had begun to deteriorate.[2]

Learning of the blood sugar meter[edit]

In October 1969, Bernstein came across an advertisement in the trade journal Lab World. It was for a new blood glucose meter that would give a reading in 1 minute, using a single drop of blood. The device was intended for emergency staff at hospitals to distinguish unconscious diabetics from unconscious drunks. The instrument weighed three pounds, cost $650, and was only available to certified physicians and hospitals. Determined to take control of his situation, Bernstein asked his wife, a doctor, to order the instrument for him.

Bernstein began to measure his blood sugar about 5 times each day and soon realized that the levels fluctuated significantly throughout the day. To even out his blood sugars, he adjusted his insulin regimen from one injection per day to two and experimented with his diet, notably by reducing his consumption of carbohydrates. Three years after Bernstein began monitoring his own blood sugar levels, his complications were still progressing and he began researching scientific articles about the disease. He discovered several studies on animals suggesting that complications from diabetes could be prevented, and even reversed, by normalizing blood sugars. This is in contrast to the extant treatment of diabetes which focused on Low-fat, High carbohydrate diets and on preventing hypoglycemia and ketoacidosis.

Bernstein set out to achieve normal blood sugars; within a year he had refined his insulin and diet to the point that they were relatively normal throughout the day. After years of chronic fatigue and complications, Bernstein felt healthy and energized. His serum cholesterol and triglyceride levels were now in the normal ranges, and friends commented that his complexion was no longer gray. He was an early and vocal advocate for self-monitoring of blood sugar by diabetics.[2]

Medical school[edit]

Bernstein believed that the same technique could be used to assist diabetics whose quality of life could vastly improve if they followed a similar lifestyle. Despite his effectiveness in treating his own condition, as one without medical credentials (his training was as an engineer) he had difficulty gaining the necessary attention of the medical field to change the standard treatment of diabetics. Bernstein wrote a paper describing his technique and attempted to get it published in many major medical journals, but none would accept it, in part because he was not an MD.[2] In 1977, he decided to give up his job and become a physician—"I couldn't beat 'em, so I had to join 'em."

At 45 years old, Bernstein entered the Albert Einstein College of Medicine. In 1983 he opened his own medical practice near his home in Mamaroneck, New York.

As of 2006, Bernstein had an HDL cholesterol of 118, LDL of 53, Triglycerides of 45, and average blood sugar of 83 mg/dl.[3] By 2008, at 74 years of age, Bernstein had surpassed the life expectancy of type 1 diabetics. He attributed his longevity to the low-carbohydrate dietary approach and lifestyle changes he had developed for diabetics.

Low-carbohydrate diabetes diet and treatment plan[edit]

Bernstein's program for treating diabetes is highly regarded amongst his patients and achieves great blood sugar control, which reduces some or all of the complications associated with diabetes.[citation needed] The tradeoff is compliance with a very restricted diet and in many cases, frequent testing and insulin shots. Bernstein strongly opposes the dietary guidelines from the American Diabetes Association (ADA) for both type 1 and type 2 diabetics. His dietary recommendations are in contradiction to most other diets.

Some of the highlights of his treatment program include:[2]

  • A very low carbohydrate diet to allow much tighter blood sugar control.
  • The allowed carbohydrate amounts are a maximum of 6 grams for breakfast, 12 grams for lunch, 12 grams for dinner for a combined maximum of 30 grams of carbohydrate per day for all patients regardless of age or body weight.
  • Avoiding all foods with added sugar or honey such as desserts, candies, and pastries; all foods made from grains and grain flours such as breads, cereals, pasta, and rice; all starchy vegetables such as potatoes, corn, carrots, peas, tomatoes, and beans; all fresh or preserved fruits and fruit juices; all dairy products except for butter, cream, and fermented cheeses.
  • The patient takes responsibility for blood sugar control including blood glucose testing up to 8 times per day.
  • Target blood glucose levels that are nearly constant for the entire day.
  • Weight loss for obese people with type 2 diabetes.
  • Exercise for all those with type 2 diabetes.
  • Basal and bolus dosing for insulin users.


He is director emeritus of the Peripheral Vascular Disease Clinic of the Albert Einstein College of Medicine at the Bronx Municipal Hospital Center.

Other Works[edit]

He developed the acid perfusion test, also called the Bernstein Test, for ZES and GERD.


  1. ^ [1]
  2. ^ a b c d Bernstein, Richard K., Dr. Bernstein's Diabetes Solution: My Life with Diabetes, retrieved 2010-06-27 , selected chapters available on-line
  3. ^ Dr. Bernstein's Diabetes Solution, p. 113 


  • Bernstein, Richard K. (November 1, 2011), Dr. Bernstein's Diabetes Solution: The Complete Guide to Achieving Normal Blood Sugars (Hardcover 4th ed.), Little, Brown & Company, ISBN 978-0-316-18269-0 
  • Bernstein, Richard K. (January 3, 2005), The Diabetes Diet: Dr. Bernstein's Low-Carbohydrate Solution, Little, Brown & Company, ISBN 978-0-316-73784-5 
  • Bernstein, Richard K. (November 1990), Diabetes Type II: Living a Long, Healthy Life Through Blood Sugar Normalization (1st ed.), Prentice Hall Trade 
  • Bernstein, Richard K. (February 1, 1981), Diabetes: The GlucograF Method for Normalizing Blood Sugar, Crown 

External links[edit]