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The 7 foods that affect your intestinal health

Did you know that high-fat foods increase stomach acidity levels and can irritate the intestine and cause reflux? In the long term, they can also lead to metabolic disorders.

The intestines play a very important role in our health. It is therefore essential to take care of our intestinal health as well.

The absorption of nutrients takes place through intestinal functions. As a result, the elimination of waste that the body does not need is completed.



These are inhabited by millions of bacteria that, contrary to what some people think, are necessary for a good digestive process. The reason is because they are in charge of breaking down some substances that the body cannot digest on its own.

In addition, they help produce some essential vitamins and, as if this were not enough, they provide energy to the body and strengthen the immune system.

The problem is that, sometimes, bad eating habits cause alterations that, in addition to preventing its proper functioning, generate symptoms and conditions that affect our quality of life.

The most worrying thing is that many people do not know which foods are harmful. In fact, their intake brings these and more negative effects. For this reason, we reveal in this article the 7 most harmful to the intestinal flora.


Foods that most damage the intestinal flora


Cereals rich in gluten


While the fiber in some whole grains can improve the function of the intestines, the gluten in refined ones can cause annoying problems.

This protein cannot be digested or metabolized properly. As a result, this can lead to allergies and adverse reactions in intestinal health.

Its excessive consumption increases the levels of inflammation and, if not controlled, can cause autoimmune diseases such as:

  • Diabetes.
  • Arthritis.
  • Alzheimer’s disease.
  • Lupus.
  • Fibromyalgia.
  • Multiple sclerosis.
  • Crohn’s disease.


Red meat


Regular consumption of red meat not only increases the risk of gout. It can also affect the body’s tissues, increasing their levels of inflammation.

This type of food is more difficult to digest compared to lean meats and, since it slows down digestion, it is related to digestive symptoms such as:

  • Abdominal inflammation.
  • Gas.


It should also be noted that they alter the pH of the intestine, which decreases the presence of healthy bacteria and, therefore, increases susceptibility to infections.



Fats and fried foods


First of all, fried and high-fat foods are quite addictive and, in the long term, can cause metabolic disorders and overweight.

They also immediately irritate the intestine and increase acidity levels in the stomach. As a result, they can cause discomfort such as acid reflux.

Patients with irritable bowel syndrome, gastritis and other disorders of the digestive system should avoid their consumption.




Dairy products contain nutrients that provide many benefits to the body. However, their intake should be avoided by those who are lactose intolerant.

Although they are delicious and accompany many of the dishes we usually eat, it has been proven that they are responsible for many difficulties in the intestine.

Fat, lactose and its proteins directly affect intestinal health. Thus, they alter its microbiome and hinder the waste elimination process.

It is also related to inflammatory reactions and common problems such as constipation and diarrhea.


Hot peppers


Hot peppers add a special kick to dishes. On top of that, they contain powerful antioxidants that protect the body against oxidative damage.

The problem is that their intake, especially in patients with digestive problems, causes strong irritation in the stomach lining and intestinal area.

As a consequence, episodes of heartburn, acid reflux and gastritis increase.


Coffee and carbonated beverages


Coffee, soft drinks and carbonated beverages are associated with increased acid reflux and intestinal inflammation.

These beverages relax the esophageal sphincter, which facilitates the return of acidic juices to the upper part of the body.

On the other hand, their high sugar content and added substances generate alterations in the health of the intestine, leading to diarrhea and severe abdominal pain.


Canned or processed foods


The market is invaded with a wide variety of canned or prepared foods. What we do not know is that through industrial processes they affect their nutritional quality.

Many consider them to be a fast food option, as they are often delicious and not difficult to cook.

What the industry does not realize is that they are poor in essential nutrients. Instead, they are full of added chemicals that affect both gut health and the functions of other body systems.



Their intake has been linked to the risk of metabolic diseases, irritable bowel syndrome and several types of cancers.

Do you consume these foods? If so, try to reduce them as much as possible from your diet to avoid negative reactions in the intestine.

Instead, increase your consumption of organic foods, especially fruits, vegetables and whole grains.



Dr. Mansi Shah

Functional Wellness Network

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