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How to Reverse Diabetes – The Bob Blackburn Story

Article written and reviewed by Cyrus Khambatta, PhD
Published September 13, 2017

Bob Blackburn served in the Marines from 1981-85 and later became a professional wrestler (The DI Bob Carter) in the WWE.

After retiring from wrestling in 1989, he developed a lifestyle of unhealthy habits, eventually leading to the diagnosis of type 2 diabetes at the age of 53 – the same age at which his own father died from the complications of type 2 diabetes.

Like many people, Bob was scared and frustrated with high cholesterol, high blood glucose, high blood pressure, and weighed 296 pounds. Candidly, he told us:

"I was just a cheeseburger and fries away from 300 pounds, and I knew I had to do something about it."

Despite this grim series of health conditions, Bob decided to make a serious lifestyle change to drastically improve his health and avoid the same fate as his father.

After learning that he could reverse type 2 diabetes using his lifestyle, Bob went home and began eagerly researching what steps he could take to turn his health around...completely.

Only 3 months after his diabetes diagnosis, Bob had lost 52 pounds, reduced his fasting blood glucose by 200 mg/dL, dropped his cholesterol by almost 40%, and lowered his A1c by 3.5%.

Here’s how it happened.

He first found Dr. Neal Barnard’s TEDx talk on YouTube. He watched the video, ordered Dr. Barnard’s book on reversing diabetes, and read the book from cover to cover.

The next day, he woke up and began eating a low-fat, plant-based, whole-food diet, just as Dr. Barnard had described.

In less than 24 hours, his life was changed forever.Bob admitted that even though he started eating a plant-based diet, he was still slightly confused about what to eat. He didn’t let that slow him down, and instead he started experimenting and becoming “that guy” searching for plant-based foods at every opportunity.

In a short period of time Bob learned how to refine his meals, and eventually began enjoying his meals more than he did at the beginning.

His medical team sent him to a diabetes education class that suggested that he eat a low-carb, high-protein diet to control his blood glucose – the same diet that he had tried in the past and found unsustainable. He decided to fully commit to this new low-fat, plant-based approach and see what would unfold.

Bob knew that to stay motivated, he first had to define why he wanted to achieve better health. With two teenage sons and a partner that loves him deeply, he had all the reasoning in the world to stay committed to improved health.

By adopting this new lifestyle, he hopes to spend a long and healthy life with his family, and not feel held back by being “sick” and overweight.

In February of 2017, Bob found out about the Mastering Diabetes Online Summit, and promptly signed up. He watched dozens of interviews with diabetes experts, researchers, and physicians, and put into practice as much information as he could.

Mastering Diabetes Online Summit

Bob eventually found a dietitian – Kim Smith, MS, RD, who understood this dietary approach for type 2 diabetes – who helped him to understand how particular foods affected his blood glucose.

They worked together to sort through the small differences presented by these diabetes experts, and modify his lifestyle to fit his individual needs.

Through this process, Bob found that he felt his best when incorporating lots of beans and leafy green vegetables, and found himself enjoying meals that were previously unappetizing. In addition, he found that when he ate potatoes, rice, or quinoa, his blood glucose was quite difficult to control.

3 Month Results

Bob returned to his doctor’s office for a follow-up appointment 3 months after he began a low-fat, plant-based, whole-food lifestyle. Here’s what happened:

  • Bob lost 52 pounds
  • His cholesterol dropped 77 points (from 225 mg/dL to 148 mg/dL)
  • His A1c dropped from 9.9% to 6.4%
  • He was able to discontinue using insulin (approximately 20U per day)

9 Month Results

When Bob walked out of the doctor’s office following his 3-month checkup, he almost cried. Excited by excellent results, he continued eating a low-fat, plant-based, whole-food lifestyle and continued to improve his weight, blood glucose, and cholesterol.

On his birthday (July 12, 2017), he returned to the doctor’s office for another appointment after losing another 38 pounds. By this point, he had dropped his A1c to 5.9%, his total cholesterol to 125 mg/dL, his LDL cholesterol to 83 mg/dL, and his blood pressure to 106/66 mmHg.

Here is a summary of his results at 3 months (February 2017) and 9 months (July 2017):

Biomarker

November 2016

February 2017

July 2017

Bodyweight (pounds)

296

244

206

Fasting BG (mg/dL)

286

86

90

HbA1c (%)

9.9

6.4

5.9

Total Cholesterol (mg/dL)

225

148

125

LDL Cholesterol (mg/dL)

155

97

83

HDL Cholesterol (mg/dL)

43

38

37

Triglycerides (mg/dL)

207

94

77

Blood Pressure (mmHg)

130/78

115/73

106/66

Today, Bob is happier and healthier than he has been in over 30 years. He continues this lifestyle and his health continues to progress. He is able to keep up with his teenage sons and be present with his partner, Katherine.

Bob is a living example of how much of an effect your diet has on your overall health. When we asked him about his thoughts on this lifestyle, he said:

“I have been eating a whole-foods, plant-based, no-oil diet since November of 2016. While I don’t consider myself a vegan, I choose to stay primarily plant-based. I eat a lot of fruit, I do not count my carbohydrate intake, I watch my fat intake and I feel like a million bucks. This lifestyle saved my life.”

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About the author 

Cyrus Khambatta, PhD

Cyrus Khambatta, PhD is a New York Times bestselling co-author of Mastering Diabetes: The Revolutionary Method to Reverse Insulin Resistance Permanently in Type 1, Type 1.5, Type 2, Prediabetes, and Gestational Diabetes.

He is the co-founder of Mastering Diabetes and Amla Green, and is an internationally recognized nutrition and fitness coach who has been living with type 1 diabetes since 2002. He co-created the Mastering Diabetes Method to reverse insulin resistance in all forms of diabetes, and has helped more than 10,000 people improve their metabolic health using low-fat, plant-based, whole-food nutrition, intermittent fasting, and exercise.

Cyrus earned a Bachelor of Science in Mechanical Engineering from Stanford University in 2003, then earned a PhD in Nutritional Biochemistry from the University of California at Berkeley in 2012. He is the co-author of many peer-reviewed scientific publications.

He is the co-host of the annual Mastering Diabetes Online Summit, a featured speaker at the Plant-Based Nutrition and Healthcare Conference (PBNHC), the American College of Lifestyle Medicine Conference (ACLM), Plant Stock, the Torrance Memorial Medical Center, and has been featured on The Doctors, NPR, KQED, Forks Over Knives, Healthline, Fast Company, Diet Fiction, and the wildly popular podcasts the Rich Roll Podcast, Plant Proof, MindBodyGreen, and Nutrition Rounds.

Scientific Publications:

Sarver, Jordan, Cyrus Khambatta, Robby Barbaro, Bhakti Chavan, and David Drozek. “Retrospective Evaluation of an Online Diabetes Health Coaching Program: A Pilot Study.” American Journal of Lifestyle Medicine, October 15, 2019, 1559827619879106. https://doi.org/10.1177/1559827619879106

Shrivastav, Maneesh, William Gibson, Rajendra Shrivastav, Katie Elzea, Cyrus Khambatta, Rohan Sonawane, Joseph A. Sierra, and Robert Vigersky. “Type 2 Diabetes Management in Primary Care: The Role of Retrospective, Professional Continuous Glucose Monitoring.” Diabetes Spectrum: A Publication of the American Diabetes Association 31, no. 3 (August 2018): 279–87. https://doi.org/10.2337/ds17-0024

Thompson, Airlia C. S., Matthew D. Bruss, John C. Price, Cyrus F. Khambatta, William E. Holmes, Marc Colangelo, Marcy Dalidd, et al. “Reduced in Vivo Hepatic Proteome Replacement Rates but Not Cell Proliferation Rates Predict Maximum Lifespan Extension in Mice.” Aging Cell 15, no. 1 (February 2016): 118–27. https://doi.org/10.1111/acel.12414

Roohk, Donald J., Smita Mascharak, Cyrus Khambatta, Ho Leung, Marc Hellerstein, and Charles Harris. “Dexamethasone-Mediated Changes in Adipose Triacylglycerol Metabolism Are Exaggerated, Not Diminished, in the Absence of a Functional GR Dimerization Domain.” Endocrinology 154, no. 4 (April 2013): 1528–39. https://doi.org/10.1210/en.2011-1047



Price, John C., Cyrus F. Khambatta, Kelvin W. Li, Matthew D. Bruss, Mahalakshmi Shankaran, Marcy Dalidd, Nicholas A. Floreani, et al. “The Effect of Long Term Calorie Restriction on in Vivo Hepatic Proteostatis: A Novel Combination of Dynamic and Quantitative Proteomics.” Molecular & Cellular Proteomics: MCP 11, no. 12 (December 2012): 1801–14.
https://doi.org/10.1074/mcp.M112.021204





Bruss, Matthew D., Airlia C. S. Thompson, Ishita Aggarwal, Cyrus F. Khambatta, and Marc K. Hellerstein. “The Effects of Physiological Adaptations to Calorie Restriction on Global Cell Proliferation Rates.” American Journal of Physiology. Endocrinology and Metabolism 300, no. 4 (April 2011): E735-745. https://doi.org/10.1152/ajpendo.00661.2010




Bruss, Matthew D., Cyrus F. Khambatta, Maxwell A. Ruby, Ishita Aggarwal, and Marc K. Hellerstein. “Calorie Restriction Increases Fatty Acid Synthesis and Whole Body Fat Oxidation Rates.” American Journal of Physiology. Endocrinology and Metabolism 298, no. 1 (January 2010): E108-116.
https://doi.org/10.1152/ajpendo.00524.2009