Why is my stomach bigger after working out?

Author: Jeramy Ledner  |  Last update: Thursday, June 12, 2025

Gastric emptying slows down as blood is redirected to more critical areas, such as the muscles,” she explains. For some people, this may result in a bloated feeling at the end of a workout, particularly after high-intensity exercise or super-challenging core moves. However, while some mild bloating can be common, Dr.

Why am I gaining belly fat after working out?

Weight gain, including belly fat, after starting a workout routine can happen due to factors like increased muscle mass, water retention, or an increase in appetite. Sometimes, when starting new exercises, your muscles hold onto more water, which can lead to temporary weight gain.

How long does post-workout bloating last?

“Bloating after exercise should only last for a maximum of a couple of hours. If you're suffering from regular or severe bloating or you've noticed a change in your digestive tract such as different or painful bowel habits then it might be more than just exercise and you might need this to speak to your GP.”

Is it normal to look fatter after working out?

Posture and Appearance: After working out, your body may be more pumped with blood, which can temporarily change your appearance, making you feel fuller or larger. It's important to remember that weight fluctuations are normal, especially when starting a new fitness routine.

Is it normal to get fatter when you start working out?

Gaining weight while working out is totally normal — especially when you start. Here's what you need to know about why you're gaining weight, and when weight loss will kick in. You've been working really hard at the gym and trying your best to stick to a healthy diet (you go, you!).

Bloating Causes: Bloated Belly After Exercise? – Dr. Berg

How long does water retention last after exercise?

Especially in the first days and weeks of a new workout routine, your body is going to retain water. In most cases, it goes down within a few days.

Why does my belly look bigger after working out?

That full, swollen, tight feeling in your belly can also be more likely to occur if you're dehydrated, swallowing too much air while exercising, or have been eating lots of high-fiber or carbonated foods and beverages, experts say.

How do I debloat my stomach?

How to reduce bloating
  1. exercise regularly to improve your digestion and help prevent bloating – exercise can also help when you're feeling bloated.
  2. chew with your mouth closed to avoid swallowing air.
  3. drink plenty of water.
  4. eat foods high in fibre if constipated.
  5. eat smaller, more frequent meals instead of large meals.

Can exercise cause temporary weight gain?

Yes, it is typical and rather frequent to have brief weight increase following activity. It's critical to distinguish between short-term fat gain and long-term weight gain, the former of which is often brought on by processes like muscle inflammation, glycogen replenishment, and water retention.

Why am I getting skinnier but my stomach is getting bigger?

One reason for belly fat is a sedentary lifestyle. Even skinny people can spend too much time in front of the television or computer screen, and this can encourage what little extra fat they have to settle into the stomach. A diet high in processed foods can also cause belly fat, even in skinny people.

What exercise burns the most belly fat?

Aerobic exercise includes any activity that raises your heart rate such as walking, dancing, running or swimming. This can also include doing housework, gardening and playing with your children. Other types of exercise such as strength training, Pilates and yoga can also help you lose belly fat.

Why have I gained 10 pounds since working out?

Muscle is denser (meaning a lot less fluffy) than fat, says Dr. Calabrese. Put another way, 10 pounds of muscle takes up a lot less space than 10 pounds of fat. So, as you start working out regularly and building strength, the new muscle you build may eventually weigh more than the fat you've burnt off.

Why is my tummy still big even though I workout?

Unhealthy eating is the biggest driver of big bellies. Too many starchy carbohydrates and bad fats are a recipe for that midsection to expand. Instead, get plenty of veggies, choose lean proteins, and stay away from fats from red meats. Choose healthier fats in things like fish, nuts, and avocados.

What does a hormonal belly look like?

You can easily pinch the excess fat because it builds up under your skin. When hormonal imbalances cause abdominal weight gain, the fat accumulates around your internal organs (visceral fat). Your belly enlarges and takes on an apple shape. You may look extremely bloated instead of like you're carrying extra weight.

How to lose a hanging belly?

8 Ways to Lose Belly Fat and Live a Healthier Life
  1. Try curbing carbs instead of fats. ...
  2. Think eating plan, not diet. ...
  3. Keep moving. ...
  4. Lift weights. ...
  5. Become a label reader. ...
  6. Move away from processed foods. ...
  7. Focus on the way your clothes fit more than reading a scale. ...
  8. Hang out with health-focused friends.

How to be unbloated asap?

The following quick tips may help people get rid of a bloated belly quickly:
  1. Go for a walk. ...
  2. Try yoga poses. ...
  3. Use peppermint capsules. ...
  4. Try gas relief capsules. ...
  5. Try abdominal massage. ...
  6. Use essential oils. ...
  7. Take a warm bath, soaking, and relaxing.

Am I bloated or fat?

One is that belly fat doesn't greatly increase as a result of one meal or even a day's worth of meals. Bloating, on the other hand, can happen rapidly and resolve just as quickly. Another way to tell the difference is that if you can physically grab the bulge you see, it's belly fat. You can't grasp your bloated belly.

Is it normal to gain belly fat while working out?

Key takeaways: Working out can cause short-term weight gain as your muscle mass increases. Post-workout inflammation may cause temporary weight fluctuations.

Why do I look chubbier when I start working out?

While at the gym, you'll be actively working your muscles and all the while dehydrating. The combination of your pumped up muscles, dehydration and overworked muscles might make you feel well toned then, a few hours later, you appear flabbier despite the exercise you know should be making you lean.

Why am I gaining weight after working out for 3 weeks?

There are several research-backed reasons why you might notice a slight weight gain after exercise. These include muscle gain, water retention, post-workout inflammation, supplement use, or even undigested food. In most cases, post-workout weight gain is temporary.

Why am I gaining weight while eating healthy and exercising?

Keep in mind that this weight gain might be temporary as your body transitions to a healthier, stronger body composition. Other reasons you might be gaining weight from exercise and healthy eating are drinking more water, increasing your salt intake or heightened appetite.

Why do I look puffy after working out?

A bit of swelling is not just okay; it's expected with most high-intensity workouts. It's a sign that your body is going through its natural repair process. As the muscles heal, they also become stronger as the body increases the number of muscle fibers. This is why you gain strength and muscle with regular workouts.

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