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7 habits that sabotage your digestion

Digestion is a complex process involving multiple organs, hormones, and enzymes, and it is easy to take it for granted. However, certain habits can disrupt this process and cause discomfort such as bloating, constipation, or acid reflux. In this article, we highlight the most common habits that can sabotage digestion—and what you can do to avoid them.

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1. Eating too quickly

Many people tend to eat quickly, either due to a busy schedule or the habit of eating on the go. This can cause you to swallow air along with your food, leading to bloating and stomach discomfort. Eating too fast also prevents your body from signaling satiety in time, which can result in overeating.

How does this affect digestion?

When food is not chewed properly, the stomach has a harder time breaking it down effectively. This may lead to incomplete digestion and poor nutrient absorption in the intestines.

Effect: Increased risk of bloating, poor digestion, and overeating.

Tips to avoid it:

  • Take smaller bites and chew food thoroughly.

  • Set aside time for meals and eat slowly.


2. Eating too much processed food

Processed foods—such as fast food, snacks, and ready-made meals—are often high in sugar, salt, and unhealthy fats. These ingredients are harder to digest and may promote inflammation in the intestines. Additives in processed foods can also irritate the digestive system.

How does this affect digestion?

Processed foods may disrupt gut microbiota balance, interfering with normal bowel function. This can cause bloating, constipation, and even increase the risk of inflammatory bowel diseases over time.

Effect: Increased inflammation, poorer gut health, and microbial imbalance.

Tips to avoid it:

  • Choose whole, unprocessed foods such as fruits, vegetables, and whole grains.

  • Cook meals from scratch to control ingredients.


3. Drinking too much during meals

Although hydration is essential, drinking large amounts of liquid during meals may hinder digestion. Sugary or carbonated drinks can dilute stomach acids, making it harder to break down food.

How does this affect digestion?

Excess fluid intake during meals reduces the efficiency of stomach acid, resulting in incomplete digestion. This can lead to bloating, acid reflux, and discomfort.

Effect: Reduced digestive efficiency and increased risk of bloating.

Tips to avoid it:

  • Drink water before or after meals, not during.

  • Avoid large amounts of sugary or carbonated beverages with meals.


4. High stress levels

Stress directly impacts the digestive system. When you are stressed, the body’s “fight or flight” response decreases blood flow to the gut, slowing digestion. Chronic stress may also contribute to ulcers.

How does this affect digestion?

Stress reduces blood supply to the stomach and intestines, slowing digestion and absorption. Increased cortisol levels may also worsen gut inflammation.

Effect: Slower digestion, constipation, and higher risk of ulcers.

Tips to avoid it:

  • Practice stress management techniques such as yoga, meditation, or deep breathing.

  • Take breaks throughout the day to lower stress levels.


5. Lack of sleep

Adequate sleep is essential for healthy digestion. Sleep deprivation disrupts hormones that regulate appetite and digestion. Research shows that people who sleep poorly have a higher risk of gastrointestinal issues such as irritable bowel syndrome (IBS) and acid reflux.

How does this affect digestion?

Poor sleep impairs nutrient absorption and slows gut motility. It also promotes inflammation in the digestive system, worsening existing problems.

Effect: Increased risk of digestive disorders such as IBS and reflux.

Tips to avoid it:

  • Aim for 7–9 hours of sleep per night.

  • Establish a bedtime routine and avoid screens before sleep.


6. Eating too much at once

Large meals can overload the digestive system. Overeating stretches the stomach and slows digestion, often causing bloating, nausea, and discomfort.

How does this affect digestion?

When the stomach is overfilled, food takes longer to break down and may ferment in the intestines, producing gas and bloating.

Effect: Slower digestion and bloating.

Tips to avoid it:

  • Eat smaller, more frequent meals instead of large ones.

  • Listen to your body and stop when you feel full.


7. Low fiber intake

Fiber is vital for proper digestion, supporting bowel regularity and preventing constipation. A low-fiber diet can slow intestinal transit and cause irregular bowel movements.

How does this affect digestion?

Fiber absorbs water and adds bulk to stool, facilitating smooth bowel movements. Without sufficient fiber, constipation and sluggish digestion may occur.

Effect: Increased risk of constipation and irregular bowel movements.

Tips to avoid it:

  • Add more fiber-rich foods such as fruits, vegetables, legumes, and whole grains.

  • Drink enough water to support fiber’s role in digestion.


Summary

Digestion is central to overall health, and our daily habits can either support or disrupt it. By avoiding habits such as eating too quickly, consuming processed foods, or neglecting sleep, you can improve digestion and prevent common problems. Small changes—like eating slower, reducing stress, and increasing fiber intake—can have a major impact on your digestive health.


References

  1. Rao, S. S. C., & Camilleri, M. (2010). Has intestinal transit time anything to do with the severity of IBS symptoms? Neurogastroenterol Motil, 22(3), 253–260. https://doi.org/10.1111/j.1365-2982.2009.01420.x

  2. Mazzawi, T., Hausken, T., & Gundersen, D. (2016). High prevalence of eating fast and its association with functional gastrointestinal disorders. J Neurogastroenterol Motil, 22(4), 664–671. https://doi.org/10.5056/jnm16003

  3. Chassaing, B., et al. (2015). Dietary emulsifiers impact the mouse gut microbiota promoting colitis and metabolic syndrome. Nature, 519(7541), 92–96. https://doi.org/10.1038/nature14232

  4. Zeng, J., Li, Y., Zuo, X., & Zeng, J. (2020). Impact of dietary habits on the gut microbiota: An update for gastroenterologists. Curr Opin Gastroenterol, 36(2), 113–123. https://doi.org/10.1097/MOG.0000000000000615

  5. Fass, R. (2008). Effects of carbonated beverages on lower esophageal sphincter pressure and acid reflux. J Clin Gastroenterol, 42(7), 760–763. https://doi.org/10.1097/MCG.0b013e31805839b1

  6. Konturek, P. C., Brzozowski, T., & Konturek, S. J. (2011). Stress and the gut: Pathophysiology, clinical consequences, diagnostic approach and treatment options. J Physiol Pharmacol, 62(6), 591–599. https://www.jpp.krakow.pl/journal/archive/12_11/pdf/591_12_11_article.pdf

  7. Benedict, C., et al. (2012). Gut microbiota and sleep–wake regulation. Curr Opin Clin Nutr Metab Care, 15(6), 571–577. https://doi.org/10.1097/MCO.0b013e328358d81b

  8. Marcason, W. (2012). What is the role of dietary fiber in maintaining normal intestinal function? J Acad Nutr Diet, 112(9), 1527. https://doi.org/10.1016/j.jand.2012.07.022

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