: a peptide hormone that is produced by fat cells and plays a role in body weight regulation by acting on the hypothalamus to suppress appetite and burn fat stored in adipose tissue
Examples of leptin in a Sentence
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When dieting or losing weight, ghrelin levels tend to rise while leptin levels typically decrease.13
Essentially, ghrelin and leptin work together to control your appetite by sending hunger and satiety cues.
—
Brittany Lubeck, Ms, Rdn, Verywell Health, 14 Apr. 2025
Their nutrient profile also helps regulate appetite hormones like ghrelin and leptin, which control hunger and satiety.
4.
—Bryan Robinson, Forbes.com, 7 Apr. 2025
Exercise can help balance leptin and ghrelin, hormones involved in hunger, energy balance, and sleep.
—Wendy Wisner, Health, 31 Mar. 2025
Ghrelin, an appetite stimulant, rises when you are sleep-deprived, and leptin decreases.
—Judy Stone, Forbes, 10 Mar. 2025
See All Example Sentences for leptin
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Brittany Lubeck, Ms, Rdn, Verywell Health, 14 Apr. 2025
Their nutrient profile also helps regulate appetite hormones like ghrelin and leptin, which control hunger and satiety.
4.
—Bryan Robinson, Forbes.com, 7 Apr. 2025
Exercise can help balance leptin and ghrelin, hormones involved in hunger, energy balance, and sleep.
—Wendy Wisner, Health, 31 Mar. 2025
Ghrelin, an appetite stimulant, rises when you are sleep-deprived, and leptin decreases.
—Judy Stone, Forbes, 10 Mar. 2025
See All Example Sentences for leptin
Cite this Entry
“Leptin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/leptin. Accessed 21 Apr. 2025.
Copy CitationMedical Definition
leptin
noun
lep·tin
ˈlep-tən 
: a peptide hormone that is produced by fat cells and plays a role in body weight regulation by acting on the hypothalamus to suppress appetite and burn fat stored in adipose tissue
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