glycemic index

noun

: a measure of the rate at which ingested food causes the level of glucose in the blood to rise
also : a ranking of foods according to the glycemic index
abbreviation GI

Examples of glycemic index in a Sentence

Recent Examples on the Web
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Brown rice, for example, is less processed and has a lower glycemic index. Verywell Health, 14 Aug. 2025 While potatoes contain nutrients such as fiber, vitamin C and potassium, recent research has cautioned that their high glycemic index, which causes blood sugar spikes, and the various ways they're cooked could have negative health impacts. Deirdre Bardolf, FOXNews.com, 9 Aug. 2025 The starchy tuber’s high carbohydrate content and elevated glycemic index (a measurement of how quickly a food raises blood sugar) has given it a bad reputation among people conscious of their glucose levels. Emily Kay Votruba, EverydayHealth.com, 7 Aug. 2025 Serving size: 1 cup Carbs: 22 g Pineapple is a juicy tropical fruit with a high glycemic index (GI)—a measurement that ranks how quickly carbohydrate-containing foods raise blood sugar on a scale of 1 (slow) to 100 (fast). Lauren Panoff, Verywell Health, 8 July 2025 See All Example Sentences for glycemic index

Word History

First Known Use

1981, in the meaning defined above

Time Traveler
The first known use of glycemic index was in 1981

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Cite this Entry

“Glycemic index.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/glycemic%20index. Accessed 20 Aug. 2025.

Medical Definition

glycemic index

noun
: a measure of the rate at which an ingested food causes the level of glucose in the blood to rise
the insulin response caused by carbohydrate depends on the glycemic index … of the foodTrevor Smith
also : a ranking of foods according to their glycemic index
abbreviation GI

More from Merriam-Webster on glycemic index

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