Satiety
Also called: fullness
Clinical reviewer: Jacob Moore, MD · Last checked September 24, 2026
What is satiety?
Satiety is the inhibition of eating that follows the end of a meal. Appetite researchers assess it separately from satiation, and it is shaped by a food's composition and structure. In a 20-week trial, semaglutide increased fullness and satiety and reduced hunger compared with placebo.
What affects satiety?
Satiety is the inhibition of eating that follows the end of a meal, and it is influenced by a food's composition and structure [1]. In studies of foods with added water or gas, increased stomach distension may be the main mechanism behind their effect on satiety [1]. Appetite research treats satiety and satiation as separate effects and uses different study designs to assess each one [2].
How do GLP-1 medications change satiety?
In a 20-week trial of 72 adults with obesity, semaglutide 2.4 mg reduced hunger and prospective food consumption and increased fullness and satiety compared with placebo, with ad libitum energy intake 35% lower at a test meal [3]. A separate 12-week trial found semaglutide was associated with less hunger and fewer food cravings, better control of eating, and a lower preference for high-fat foods [4].
Frequently asked questions
Do GLP-1 medications affect satiety?+−
In a 20-week trial of semaglutide 2.4 mg, adults with obesity reported more fullness and satiety and less hunger than with placebo, and ate less at a test meal.
What makes one food more filling than another?+−
A food's composition and structure influence satiety. In studies of foods with added water or gas, stomach distension may be the main mechanism behind the effect.
Related terms
Sources
- Satiety, have we neglected dietary non-nutrients?
- Appetite control, methodological aspects of the evaluation of foods.
- The effect of semaglutide 2.4 mg once weekly on energy intake, appetite, control of eating, and gastric emptying in adults with obesity.
- Effects of once-weekly semaglutide on appetite, energy intake, control of eating, food preference and body weight in subjects with obesity.
This entry is for education and is not medical advice. Talk with a licensed clinician about your own situation before starting, stopping, or changing any treatment.
