Health Advice



Forty or fewer grams of carbs a day can reverse prediabetes

By Michael Roizen, M.D. on

Oprah struggled with a diagnosis of prediabetes and lost and gained weight, off and on, until she revamped her eating habits (fewer, healthier carbs) and established more realistic goals: "Gone for me are the days of wanting to be thin to fit into anything other than my best body and best life."

Now, a new study reveals how the 96 million adults in the U.S. with prediabetes can stop their race to full-blown diabetes in six months without much stress or strain. That includes 70 million who are not aware that they have the condition, which increases the risk for heart disease and stroke.

According to research published in JAMA Network Open, sticking to a low-carb diet -- fewer than 40 grams of carbs daily -- does the trick. The study compared 75 folks ages 40 to 70 who had an A1c of 6.0% to 6.9% and who went on the restricted diet to 75 folks with the same age and A1c levels who stuck to their normal eating routine. It showed that "the low-carbohydrate diet intervention group had significantly greater six-month reductions in HbA1c."

If you're overweight, do not exercise regularly, have a parent, brother or sister with Type 2 diabetes, or have PCOS, ask your doctor for a blood test to check for prediabetes. If you're diagnosed, you can hit the mark for 40 grams of carbs a day with 1/2 cup cooked beans (15 grams), 1/2 large apple (15 grams), 1/2 cup blueberries (9 grams) and seven to nine servings of non-starchy vegetables and fatty fish like salmon.



Health pioneer Michael Roizen, M.D., is chief wellness officer emeritus at the Cleveland Clinic and author of four No. 1 New York Times bestsellers. His next book is "The Great Age Reboot: Cracking the Longevity Code for a Younger Tomorrow." Do you have a topic Dr. Mike should cover in a future column? If so, please email

(c)2022 Michael Roizen, M.D.

Distributed by King Features Syndicate, Inc.

(c) 2022 Michael Roizen, M.D. Distributed by King Features Syndicate, Inc.



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