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Will Potatoes Every Day Lead to Diabetes?

Huge Harvard studies show that people who often eat potatoes raise their risk of developing type 2 diabetes.

Are there any dangers to indulging in potatoes? A new study suggests moderation is wise.

Harvard researchers have been following health professionals and their eating habits for years. Over 150,000 women from the Nurses’ Health Studies and more than 40,000 men from the Health Professionals Follow-Up Study have been tracked for decades. Every few years they fill out questionnaires about their eating habits, lifestyle activities and their health.

Potatoes Linked to Type 2 Diabetes:

The latest analysis found that the more potatoes these individuals consumed, the greater the likelihood they would develop type 2 diabetes. People who ate potatoes every day increased their risk of this metabolic disorder by about 33 percent, regardless of whether the potatoes were baked, boiled or mashed. French fries were even more hazardous.

You might expect that this was due to weight gain among the potato eaters, but the statistical analysis showed the danger was independent of body mass index (BMI). This is a way of judging whether someone is over- or underweight.

What could be done? The investigators estimate that replacing three servings of potatoes a week with whole grains would modestly lower the risk of developing type 2 diabetes.

Diabetes Care, March, 2016

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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..
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