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It's easy to get answers about health and nutrition! Just send your question by email to askdrgourmet@drgourmet.com and Dr. Harlan will respond to selected questions of general interest. Answers will be posted in the Ask Dr. Gourmet newsletter (sign up now!) and archived in the Ask Dr. Gourmet section of the website.

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Ask Dr. Gourmet



Are sweet potatoes better than regular potatoes for those with pre-diabetes?

Is it all right for a pre-diabetic to eat sweet potato? I heard that sweet potato is better than white potato.

Dr. Gourmet Says...

Baked Sweet Potato with butter

Most sweet potatoes sold in the U.S. are often called "yams" but in fact are not, although the USDA requires that the label of "yam" be accompanied by "sweet potato" (not very helpful, I know).

The sweet potatoes (or yams) you are likely referring to are the orange-fleshed tubers that are most familiar to people served at holidays in sticky-sweet casseroles garnished with marshmallows. Regardless of the name, both yams and sweet potatoes are great for diabetics (although not covered in maple syrup, brown sugar, or marshmallows) and may be a little better than plain (russet, red, or Yukon Gold) potatoes because they are somewhat higher in fiber.

This fits in well with the Mediterranean Diet, which recommends choosing ingredients that are higher in fiber and complex carbohydrates. You can find out more about a Mediterranean-style diet for diabetics in my article, "The Mediterranean Diet IS a Diabetic Diet!"

Thanks for writing,

Timothy S. Harlan MD, FACP
Dr. Gourmet