Why How You Eat Is Just as Important as What You Eat

Written by: Andréanne Martin

Updated: April 25th, 2025

When it comes to digestive health, we often focus on what we eat. But how we eat can be just as important.

From cutting back on sugar to increasing fiber intake, most healthy eating advice revolves around food choices. However, an essential, and often overlooked, component of digestive wellness is our eating behavior. The pace at which we eat, how we chew, and even the environment we eat in can significantly influence digestion and overall well-being.

Here’s a closer look at small everyday habits that can make a big difference in how you feel after a meal.

Eating too quickly: a digestive challenge

In today’s fast-paced world, eating on the go, between meetings or while standing in the kitchen, is all too common. But rushing through meals can seriously disrupt digestion. When you finish eating in just a few minutes, your brain doesn’t have time to register fullness, which can lead to overeating. Poorly chewed food is also more difficult for the stomach and intestines to break down, increasing the risk of bloating, gas, and discomfort.

Tip: Aim to take at least 20 minutes for your meals. Try putting your utensils down between bites to naturally slow your pace. It’s a simple yet powerful shift that supports better digestion.

Chewing: the first step of digestion

Digestion doesn’t start in the stomach: it begins in the mouth. Saliva contains enzymes that initiate the breakdown of carbohydrates, and thorough chewing reduces food into smaller particles, making it easier for the stomach and intestines to process. Proper chewing can also minimize acid reflux and help prevent that heavy, sluggish feeling after meals.

So, how much chewing is enough? There’s no exact number, but aiming for 20 to 30 chews per bite is a solid target, especially for dense or fibrous foods.

Spacing meals: giving your digestive system a break

Constant snacking keeps the digestive system in overdrive, reducing its efficiency and promoting excess fermentation of food in the gut. Spacing meals 3 to 5 hours apart, without eating in between, allows the migrating motor complex (MMC) to activate. This “cleansing wave” helps sweep residual food and bacteria through the digestive tract, supporting gut motility and reducing bloating.

Practical advice: Try to stick to a routine of three balanced meals per day, with one planned snack if needed. Giving your gut time to rest between meals can go a long way in supporting long-term digestive health.

Late-night eating: digestion’s worst enemy

Eating too close to bedtime can interfere with digestion and negatively impact sleep quality. When you lie down shortly after a meal, gravity no longer assists in moving food through the digestive tract, increasing the risk of acid reflux and discomfort. Additionally, the digestive system naturally slows down at night, making it less efficient.

Takeaway: Aim to finish your last meal 2 to 3 hours before going to bed. If you’re genuinely hungry in the evening, opt for a small, light, and easily digestible snack, like yogurt with fruit or a homemade muffin.

Aerophagia: swallowing air… without realizing it

Aerophagia, or the unintentional swallowing of air, can lead to bloating, excessive burping, and abdominal discomfort. It often results from eating too quickly, talking while chewing, or drinking carbonated beverages. Even sleeping with your mouth open can contribute to air intake during the night.

Helpful tips: Slow down your eating pace, avoid chewing gum, and choose still water or non-carbonated drinks to reduce excess air intake.

Meal environment: stress, screens, and digestion

The environment in which we eat has a profound impact on digestion. Eating in a stressed state or while distracted, by a screen, for example, activates the sympathetic nervous system, commonly known as the “fight or flight” response. This inhibits digestive processes. In contrast, a calm and relaxed setting activates the parasympathetic nervous system, also known as “rest and digest,” allowing the body to properly break down and absorb nutrients.

Distractions like screens or multitasking can also lead to mindless eating, making it harder to recognize fullness cues and often resulting in overeating.

Create a calming ritual: Consider setting the tone for your meal by playing gentle music, turning off screens, and taking a few deep breaths. These simple habits can transform mealtime into a mindful moment that supports both physical and mental well-being. You might also try practicing diaphragmatic breathing for five minutes before eating. This technique engages the diaphragm to encourage slower, deeper breaths, helping to calm the nervous system and activate the body’s “rest and digest” mode.

The Bottom Line

The quality of our digestion depends on much more than the food on our plate. Small habits like slowing down, chewing thoroughly, spacing meals, and creating a calm mealtime environment can significantly improve how we feel after eating.

By bringing more mindfulness to our eating behaviors, we support not only better digestion, but also a more positive and peaceful relationship with food.

So next time you sit down for a meal, remember: how you eat matters just as much as what you eat. Slow down, breathe deeply, and truly savor each bite.

References:

American Gastroenterological Association. Chey WD, Hashash JG, Manning L, Chang L. AGA Clinical Practice Update on the Role of Diet in Irritable Bowel Syndrome: Expert Review. Gastroenterology. 2022 May;162(6):1737-1745.e5.
Cassady BA, Hollis JH, Fulford AD, Considine RV, Mattes RD. Mastication of almonds: effects of lipid bioaccessibility, appetite, and hormone response. Am J Clin Nutr. 2009 Mar;89(3):794-800.
Dainese R, Serra J, Azpiroz F, Malagelada JR. Influence of body posture on intestinal transit of gas. Gut. 2003 Jul;52(7):971-4.
Nuzzaci D, et al. Postprandial Hyperglycemia Stimulates Neuroglial Plasticity… Cell Rep. 2020 Mar 3;30(9):3067-3078.e5.
Pimentel M, Rezaie A. (2022) The microbiome connection: Your guide to IBS, SIBO and low-fermentation eating.
Radziszewska M, et al. Nutrition, Physical Activity and Supplementation in Irritable Bowel Syndrome. Nutrients. 2023 Aug 21;15(16):3662.
Singh P, et al. The Role of Food in the Treatment of Bowel Disorders. Am J Gastroenterol. 2022 Jun 1;117(6):947-957.
University of Michigan Health. Diaphragmatic Breathing for GI Patients. Website.
Zhang M, et al. Association between fast eating speed and metabolic dysfunction-associated steatotic liver disease: a multicenter cross-sectional study and meta-analysis. Nutr Diabetes. 2024 Aug 14;14(1):61.