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Writer's pictureAlaine Keogh

What Happens When Food is Not Digested Properly

A woman sits on the edge of her bed, hunched over, grasping her stomach because she has digestive issues

Many of us work hard to fuel our bodies with the proper nutrition. However, that work may be in vain if our bodies are not properly digesting our food. 


Digestion is a complex process that breaks down food into smaller, absorbable components. However, when this process doesn't go as smoothly as it should, our body will let us know through various symptoms and discomfort, such as:


  • Bloating and gas

  • Acid reflux 

  • Bowel Issues

  • Fatigue


In this blog, we'll answer the question, "What happens when food is not digested properly?"


Table of Contents:


Understanding the Digestive System

Have you ever wondered what goes on inside your digestive system after a meal? Before we discuss the consequences of improper digestion, let's take a moment to appreciate the incredible role your digestive tract plays. 


The digestive system is like a busy factory inside your body, diligently breaking down the food you eat into smaller, useful parts.


It all begins in your mouth, where chewing starts the process. As you swallow, the food travels down a muscular tube called the esophagus and lands in the stomach, a powerful mixing chamber. Here, stomach acid and enzymes join the effort to break down the food further. 


The mixture then moves to the small intestine, where nutrients are absorbed into the bloodstream. The remaining waste heads to the large intestine and water is drawn out, forming solid waste.


Finally, your body says goodbye to what it doesn't need. It's a remarkable, step-by-step process that ensures your body gets the energy and nutrients necessary from the food you eat.


However, sometimes, something may prevent the body from digesting food properly. What symptoms should you be aware of to know if food is not being properly digested?


What Happens When Food is Not Digested Properly? 


Here are some ways your body is trying to communicate with you - 


Symptoms of Improper Digestion:

Bloating and Gas 

Have you ever experienced that uncomfortable feeling of bloating and the embarrassment of excessive gas? 


Improperly digesting food can lead to gas and bloating as undigested particles ferment in the digestive tract, producing excess gas. 


When the digestive process fails, particularly due to inadequate stomach acid or digestive enzymes, it can hinder the breakdown of food, resulting in fermentation. This fermentation produces gas, causing an uncomfortable bloating sensation and often leading to excessive flatulence. 


A well-functioning digestive system is crucial to minimize these discomforting symptoms.

Acid Reflux and Heartburn 

Improper digestion can trigger acid reflux and heartburn when undigested food or stomach acid flows back into the esophagus. Incomplete digestion can lead to an overproduction of stomach acid, exacerbating the issue. This upward flow causes the burning sensation characteristic of heartburn. 


Maintaining a healthy digestive process, including adequate stomach acid levels, is crucial to prevent these uncomfortable symptoms associated with acid reflux.

Constipation or Diarrhea 

Digestion plays a big role in regulating bowel movements. Insufficient fiber, dehydration, or a lack of beneficial gut bacteria can disrupt this balance, leading to either constipation or diarrhea.


In the case of constipation, insufficient fiber or dehydration may contribute to sluggish digestion, making it challenging for waste to move through the intestines. On the flip side, incomplete digestion can also lead to diarrhea as undigested food particles and excess water rush through the intestines, causing loose and frequent bowel movements.


Both scenarios highlight the importance of a well-functioning digestive process in maintaining a regular pattern of bowel movements.

Fatigue and Low Energy

You might be surprised to learn that digestion directly impacts your energy levels


The digestive system breaks down food into nutrients so the body can absorb and utilize them for energy. When this process is compromised, and nutrients aren't effectively extracted, the body may struggle to obtain the necessary fuel to function optimally.


Nutrient deficiencies resulting from incomplete digestion can lead to a decreased supply of vital elements like carbohydrates, proteins, fats, and micronutrients, all being essential for sustaining energy levels. 


When your body struggles to break down and absorb nutrients, it can result in nutrient deficiencies, leading to fatigue and a general sense of low energy.

Serotonin Levels and Digestion

Improper digestion not only affects energy levels but also disrupts serotonin production. The digestive system synthesizes serotonin, mainly in the gut. When digestion is compromised, nutrient absorption falters, impacting serotonin levels. 


This deficiency can also contribute to fatigue and low energy, emphasizing the importance of a healthy digestive system.


If you are struggling with any of these symptoms, it may be time to seek help from a registered dietitian to take charge of your health.

How to Know if Your Food is Digested Properly

Now that we've highlighted the symptoms, how can you tell if your food is being digested properly? Paying attention to your body's signals can provide valuable insights.

1.Comfortable Fullness

After a meal, you should feel comfortably full, not overly stuffed or still hungry. Listen to your body's cues and stop eating when you're satisfied.


2. Regular Bowel Movements

Consistent and well-formed bowel movements are indicative of a healthy digestive system. If you're experiencing irregularities, it may be a sign that something is amiss.


3. Sustained Energy Levels

Properly digested food should provide a steady source of energy throughout the day. If you find yourself experiencing energy crashes or persistent fatigue, it's worth investigating your digestion.


Tips for Optimal Digestion


Here are some tips on what you can do to ensure you are helping your body to digest your food properly.

Chew Your Food Thoroughly (Chewing is part of digestion!)

The digestive process starts in your mouth. Chewing food helps break down food into smaller particles, helping your stomach and intestines to do their jobs. Aim for at least 20-30 chews per bite to facilitate efficient digestion.

Eat Mindfully and Slowly 

In our fast-paced lives, it's easy to rush through meals. However, eating too quickly can hinder proper digestion. Practice mindful eating by savoring each bite and giving your body the time it needs to signal when you're full. Avoid distractions like TV or scrolling on your phone while you eat. 

Stay Hydrated 

Adequate hydration is essential for optimal digestion. Water helps our bodies to break down food, absorb nutrients, and smoothly move waste through the digestive tract. Ensure you drink enough water throughout the day to support your digestive processes.

Include Fiber-Rich Foods

Fiber assists digestion by adding bulk to your stool and preventing constipation. Whole grains, fruits, vegetables, lentils, and legumes are excellent sources of dietary fiber.


Seek Professional Guidance


If you're grappling with persistent digestive issues, consulting with a registered dietitian can provide personalized insights and guidance. Working with a registered dietitian can be particularly beneficial if you have dietary restrictions or health conditions affecting digestion. 


Registered dietitians are trained to assess your dietary habits, identify potential triggers, and create a tailored plan to optimize your digestive health.


Understanding what happens when food is not digested properly helps you to make informed choices for your digestive health. 


If you're looking for accountability to keep you on track and want personalized feedback, guidance, and support, don't hesitate to contact me. Together, we can work towards a digestive system that functions at its best, promoting overall well-being and vitality.


As a registered dietitian and a certified personal trainer, I offer a 1-1 weight loss coaching program designed to create a meal plan that aligns with your health objectives, whether it's improved health, improved energy, or weight loss.

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