blood sugar

noun

: the glucose in the blood
also : its concentration (as in milligrams per 100 milliliters)

Examples of blood sugar in a Sentence

As a diabetic, he needs his blood sugar to stay at the right levels.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
They are prescribed to help manage blood sugar in people with type 2 diabetes and to induce weight-loss by slowing stomach emptying, reducing appetite and increasing feelings of fullness. Bailey Richards, PEOPLE, 3 May 2026 Meanwhile, casein is a slow-digesting protein but provides a sustained release of amino acids into the blood sugar. Kirsten Nunez, Martha Stewart, 2 May 2026 According to Healthline, that constellation of symptoms ties directly back to how the body handles excess blood sugar. Samantha Agate, Charlotte Observer, 1 May 2026 Due to the increase in blood sugar, experts say people with diabetes, insulin resistance or those at risk of cardiometabolic disease should be especially mindful of their intake. Gavin Escott, USA Today, 1 May 2026 See All Example Sentences for blood sugar

Word History

First Known Use

1881, in the meaning defined above

Time Traveler
The first known use of blood sugar was in 1881

Browse Nearby Words

Cite this Entry

“Blood sugar.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/blood%20sugar. Accessed 4 May. 2026.

Kids Definition

blood sugar

noun
: the glucose in the blood
especially : the amount or percentage of such sugar

Medical Definition

blood sugar

noun
: the glucose in the blood
also : its concentration (as in milligrams per 100 milliliters)
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