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.
Lack of sleep can contribute to weight gain and trigger an increase in cortisol levels, which impacts blood sugar and triggers insulin resistance. Sherri Gordon, Health, 1 May 2025 Treatment includes blood sugar monitoring, lifestyle changes with exercise and diet, and medication. Vanessa Etienne, People.com, 1 May 2025 However, very high concentrations of alliums could affect blood pressure and blood sugar, lowering them. Christina Pérez, Vogue, 30 Apr. 2025 Artificial sweeteners are often marketed as safe sugar substitutes for people with diabetes, but studies on sucralose reveal mixed results, particularly for people with severe obesity and those who do not regularly consume sucralose—all of whom may see a blood sugar spike after consuming sucralose. Carmen Rios, Flow Space, 23 Apr. 2025 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 9 May. 2025.

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)
Last Updated: - Updated example sentences
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