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

Hands using a finger lanclet to prick finger for blood test
November 15, 2024/Digestive
Do At-Home Food Sensitivity Tests Work? Try These Solutions Instead

Keeping a food journal and working with a dietitian or allergist is more accurate and beneficial

Person sitting on couch with arms around stomach, grimacing
November 13, 2024/Digestive
Is My Stomach Pain IBS? Here’s How To Know

Irritable bowel syndrome has many signs, but lower abdominal pain, constipation and swelling may mean you should see a healthcare provider

Plate filled with mixed greens and veggies and grilled salmon, with small bowl of sesame seeds and a slice of lemon on table
November 12, 2024/Weight Loss
Overcoming Weight Gain After Gastric Sleeve Surgery

As many as 76% of people experience weight recurrence after bariatric surgery — but you can buck the trend by committing to long-term healthy habits

Smiling mother looking down on baby breastfeeding
November 8, 2024/Nutrition
Intermittent Fasting While Breastfeeding: Is It Safe?

Intermittent fasting could impact your milk supply and energy levels, so it’s best to wait until you’ve weaned your baby from nursing

Two people enjoying ice cream cones
November 5, 2024/Digestive
Self-Care Guide for Living With Lactose Intolerance

Experiment with numerous dairy alternatives or try taking a lactase enzyme medication before you eat dairy

Person drinking glass of dairy product in kitchen, holding muffin in other hand
October 29, 2024/Digestive
How Lactose Fits Into (and Complicates) Your Diet

Lactose is difficult to breakdown and digest because of its complexity

Palm of hand holding two capsules
October 14, 2024/Digestive
Is Acetaminophen Safe To Take When You’re Drinking?

The answer depends on both dosage and drinking habits

Cactus coming out of a toilet bowel in bathroom, with healthcare provider with open book, gesturing toward the toilet/cactus
October 14, 2024/Digestive
The Best Ways To Get Rid of Hemorrhoids at Home

Try sitting in a sitz bath or taking psyllium husk to help relieve symptoms

Trending Topics

Person touching aching ear, with home remedies floating around
Home Remedies for an Ear Infection: What To Try and What To Avoid

Not all ear infections need antibiotics — cold and warm compresses and changing up your sleep position can help

Infographic of foods high in iron, including shrimp, oysters, peas, cream of wheat, prunes, eggs, broccoli, beef and chicken
52 Foods High In Iron

Pump up your iron intake with foods like tuna, tofu and turkey

Person squeezing half a lemon into a glass of water
Is Starting Your Day With Lemon Water Healthy?

A glass of lemon water in the morning can help with digestion and boost vitamin C levels, and may even help get you into a better routine

Ad