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Glycemic Index of Tomatoes

by
author image Dakota Karratti
Dakota Karratti has been writing fitness and health articles since 2010. Her work has appeared in the "Salisbury University Flyer" and "WomanScope NewsMagazine." Karratti has been a Certified Nursing Assistant in Delaware since 2008. She is currently enrolled in The University of Alabama's Nutrition and Food Science BS program.
Glycemic Index of Tomatoes
A doctor testing a patients glucose level Photo Credit kiatipol/iStock/Getty Images

The glycemic index, or GI, is a ranking tool that focuses on the glycemic loads of foods. The GI uses a numeric scale from zero to 100 to describe how much each food alters blood sugar levels. One 5-ounce tomato has a GI of less than 15, which is low.

A Low-GI Food

Glycemic Index of Tomatoes
One serving of tomato will not lead to spikes in blood sugar. Photo Credit Polka Dot Images/Polka Dot/Getty Images

Foods that have a ranking closer to 100 are considered high-GI foods, and foods that have a ranking closer to zero are considered low-GI foods. At less than 15, tomatoes are considered a low-GI food. This means that the tomato is digested and absorbed more slowly than high-GI foods. Eating a tomato will raise blood sugar and insulin levels gradually rather than rapidly. Because of this, the tomato would be an appropriate vegetable to include in a low-GI diet plan, which might be prescribed for someone who has diabetes or difficulty controlling his weight.

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