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How to Eat for Better Blood Glucose Control

Following a relatively high-fat low-carb dietary regimen may help you achieve better blood glucose control. Numerous studies support a reader's experience.
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When public health experts point out that nearly one-third of American adults have prediabetes, we figure that we could all benefit from an appropriate diet for better blood glucose control. One reader has been experimenting with such a diet and shared exciting results.

Striving for Better Blood Glucose Control:

Q. When my Hemoglobin A1c hit 13, I realized I needed to make some changes to get better blood glucose control. I started eating a high-fat, low-carb and moderate protein diet. Within days my blood sugar dropped to normal.

At my next appointment, my doctor, who had been planning to put me on insulin, took me off my oral diabetes medicine completely. (I’m so grateful to have a doctor who listens.)

My blood sugar remains well-controlled. I am not on a keto diet. I have up to about 100 grams of carbs a day, but almost all from vegetables, no grains. The only fruit is berries. My fats are from avocado oil, coconut oil, meats, full fat dairy, eggs, olive oil and chocolate.

My last lab tests were all within normal range and the cholesterol numbers are impressive. The HDL is no longer low.

I don’t understand why some people say that it’s hard to stick to such a diet. I’ve never enjoyed food so much.

Studies Support a Low-Carb Diet for Better Blood Glucose Control:

A. Some people with diabetes do extremely well on the type of diet you describe. A three-month-long study in Denmark demonstrated lower HbA1c and blood sugar among people following a carbohydrate-reduced high-protein diet (Diabetologia, Nov. 2019). The control group followed a conventional diabetes diet.

This was not the only study to demonstrate better blood glucose control with a lower-carb diet. Canadian scientists have found that substituting nuts instead of carbs (from whole wheat muffins) reduced HbA1c (Diabetologia, Aug. 2018). In addition, a meta-analysis of six studies found that diets with a low glycemic index resulted in lower values for fasting blood sugar as well as HbA1c (Nutrients, March 19, 2018). The control groups in these studies followed conventional diabetes diets.

Learn More:

You can learn more about diabetes and diet as well as medications in our eGuide to Preventing and Treating Diabetes. You may also wish to listen to some of our relevant interviews. Dr. William Li discussed intermittent fasting in Show 1161: What Is the Evidence for Food as Medicine?  Dr. Mark Hyman offers specific recipes in Show 1189: What the Heck Should We Be Eating?  Most specifically, for better blood glucose control, Dr. Kasia Lipska discusses multiple approaches to type 1 and type 2 diabetes in Show 1173: How Is Diabetes Diagnosed and Treated? 

Beyond diet, the YMCA in most towns now offers a Diabetes Prevention Program that includes exercise, diet, social support and stress reduction. Learn more about it in Show 1036: How to Prevent Diabetes by Changing Your Life

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About the Author
Terry Graedon, PhD, is a medical anthropologist and co-host of The People’s Pharmacy radio show, co-author of The People’s Pharmacy syndicated newspaper columns and numerous books, and co-founder of The People’s Pharmacy website. Terry taught in the Duke University School of Nursing and was an adjunct assistant professor in the Department of Anthropology. She is a Fellow of the Society of Applied Anthropology. Terry is one of the country's leading authorities on the science behind folk remedies. .
Managing Diabetes
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Research on the pros and cons of the various medicines used to lower blood sugar and a wealth of details on non-drug approaches such as diet, supplements and special foods.

Managing Diabetes
Citations
  • Skytte MJ et al, "A carbohydrate-reduced high-protein diet improves HbA1c and liver fat content in weight stable participants with type 2 diabetes: a randomised controlled trial." Diabetologia, Nov. 2019. DOI: 10.1007/s00125-019-4956-4
  • Jenkins DJA et al, "Nuts as a replacement for carbohydrates in the diabetic diet: A reanalysis of a randomised controlled trial." Diabetologia, Aug. 2018. DOI: 10.1007/s00125-018-4628-9
  • Ojo O et al, "The effect of dietary glycaemic index on glycaemia in patients with type 2 diabetes: A systematic review and meta-analysis of randomized controlled trials." Nutrients, March 19, 2018. DOI: 10.3390/nu10030373
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That’s an amazing report!

There is so much discussion about diabetes these days, but why isn’t the problem of low blood sugar ever addressed? I can’t be the only person with this problem.

The only solution I’ve ever found is to simply avoid sugar and eat a good vegetarian diet plus fish. I also have to be careful to eat every four hours to avoid dizziness.

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