Locations:
Search IconSearch

Does My Stomach Actually Shrink When I Lose Weight?

The short answer from a gastroenterologist

Stomach size feels smaller

Q: Does my stomach actually shrink when I lose weight?

A: Not exactly, but here’s why you might feel full. Our stomachs have a reflex called receptive relaxation: As food enters your stomach, the muscles relax and expand out to accommodate more volume. In fact, your stomach can expand up to five times its volume after a meal as compared to before.

Advertisement

Cleveland Clinic is a non-profit academic medical center. Advertising on our site helps support our mission. We do not endorse non-Cleveland Clinic products or services. Policy

Some studies suggest that neurons surrounding and within our stomach wall actually control receptive relaxation. After losing weight, they may cause our stomachs to have less elasticity. This is also related to hormonal changes that affect our feelings of hunger and thirst, namely changes in the hunger hormones ghrelin and leptin.

All these factors can control whether you feel hungry or full, but none of them are related to any changes in the size of your stomach (even though it might feel like it).

Gastroenterologist Maged Rizk, MD

Advertisement

Learn more about our editorial process.

Related Articles

female sitting meditating, eyes closed
March 19, 2024/Weight Loss
14 Ways To Lose Belly Fat

Losing belly fat can reduce your risk for chronic health conditions — try focusing on a diet high in lean protein, exercising regularly, reducing stress and getting quality ZZZs

Person doing yoga outside, with oversized smartphone turned off in backround
March 15, 2024/Mental Health
When (and How) To Take a Social Media Break

Identify your triggers, set ground rules for your break and start practicing mindfulness

vitamin b12 shot in foreground with vials in background
March 5, 2024/Nutrition
Vitamin B12 Injections: What They Can and Can’t Do

If you have low B12 or a true deficiency, these shots can work wonders

Person eating healthy bowl of noodles with fitness items floating around head
January 17, 2024/Weight Loss
How To Shed 10 Pounds — For Good!

Actively choose healthy habits not only when it comes to food and nutrition, but also physical activity and your mental health

person in wheelchair lifting weights in gym
December 27, 2023/Heart Health
7 New Year’s Resolutions To Improve Your Heart Health

Resolve to move a little more, drink a little less, eat a little healthier, sleep a little better and destress a lot

close up of green coffee beans
December 15, 2023/Nutrition
Should You Go Green? What To Know About Green Coffee Bean Extract

There’s no evidence to prove this supplement can help with weight loss, and it may come with risks

Happy caucasian woman hiking in forest
December 6, 2023/Mental Health
Forest Bathing: What It Is and Its Potential Benefits

Immersing yourself in nature can improve both your mental and physical health

clock with diet foods and water
November 15, 2023/Weight Loss
The 10 Worst Ways To Lose Weight

Trying fad diets and skipping meals won’t do you any favors

Trending Topics

Sliced beets.
5 Health Benefits of Beets

This ruby-red root is chock-full of vitamins, fiber and more

man with painful joints in hand
6 Myths About Joint Pain and Arthritis

Getting the facts straight about osteoarthritis

variety of food allergens such as eggs, milk, wheat, shellfish and nuts
Warning Label: The Big 9 of Food Allergens

More than 90% of allergic reactions can be linked to these foods

Ad