Atrophic Gastritis: What It Is and How It Can Affect Your Digestion

Atrophic gastritis is one of the main causes of anemia among adults. Characterized by chronic inflammation and thinning of the stomach lining, this condition can have serious health consequences.

Digestion is a particularly important process for obtaining the nutrients the body needs. In the absence of hydrochloric acid and digestive enzyme production, the food breakdown process is profoundly affected. This is how various deficiencies arise, and the entire body can suffer.

Autoimmune atrophic gastritis is a condition that requires immediate attention. However, to address it, you need to know its causes, symptoms, and risk factors so you can intervene in time.

Atrophic Gastritis: What It Is and How It Manifests

The stomach is a vital organ of the digestive system and plays an essential role in processing the food we consume. Located in the upper part of the abdomen, beneath the diaphragm, the stomach is a hollow muscular sac that fills and empties as we eat.

Once it reaches the stomach, food is mixed with gastric juice, a highly acidic fluid containing digestive enzymes. These enzymes break down food into smaller particles that the body can absorb more easily. Additionally, the stomach also produces hydrochloric acid. Its role is to kill bacteria and activate certain digestive enzymes.

Conditions such as gastritis, ulcers, or stomach cancer can disrupt the normal functions of this organ, leading to various unpleasant symptoms. Unlike common gastritis, atrophic gastritis is an advanced and chronic form and can lead to serious complications.

Therefore, atrophic gastritis is a chronic stomach condition characterized by thinning of the gastric lining and gradual deterioration of the glands that produce gastric acid and digestive enzymes. In other words, the stomach lining wears out and loses its normal functions. If the stomach loses its glandular cells, food is no longer properly broken down, and nutrients are no longer efficiently absorbed.

Atrophic Gastritis: Specific Symptoms and Causes

Atrophy of the gastric lining is the result of a chronic inflammatory process that occurs gradually, not suddenly. As the lining cells are destroyed and replaced with scar tissue, the normal function of the stomach is progressively affected.

However, the stomach has a great capacity for adaptation. Even when a significant portion of the lining is affected, it can continue to function relatively normally without obvious symptoms. All of this makes identifying gastritis a major challenge.

In this chapter, we will explore the causes and symptoms of atrophic gastritis to better understand this process and its impact on digestive health.

Autoimmune Atrophic Gastritis: Causes and Risk Factors

Helicobacter pylori infection is the main cause of chronic gastritis and can lead to atrophy of the gastric lining. The exact way people get infected with Helicobacter pylori is not fully understood. The bacteria can be transmitted through contact with the feces of an infected person, followed by poor hygiene. In some cases, the bacteria can contaminate food and water, and infection can occur through their consumption. Another possibility is direct contact with the saliva of an infected person, for example, by sharing cutlery or other personal items.

It can also happen that the immune system mistakenly attacks healthy stomach cells. Instead of attacking pathogens (like bacteria or viruses), it directs its “attack” against the healthy cells in the gastric lining. This leads to chronic inflammation and, over time, the destruction of acid-producing cells and other essential substances for digestion.

The risk of developing atrophic gastritis increases with age, but this is not the only risk factor.

Besides age, the following also pose a high risk:

• excessive alcohol consumption;
• genetic predisposition;
• smoking;
• long-term use of certain medications (such as non-steroidal anti-inflammatory drugs);
• an unbalanced diet.

All of these, individually or together, can contribute to the development of the condition and affect your quality of life if you don’t intervene in time. It is important to act promptly to prevent complications and maintain your digestive health.

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Chronic Atrophic Gastritis: Characteristic Symptoms

In the early stages, unfortunately, atrophic gastritis is asymptomatic. As it progresses, signs such as:

• a burning sensation or pain in the upper abdomen, which can be constant or intermittent;
• nausea and vomiting, especially after meals;
• a feeling of fullness or satiety even after consuming a small amount of food;
• loss of appetite;
• bloating, often accompanied by flatulence;
• pernicious anemia, due to difficulties in absorbing vitamin B12 and other nutrients;
• in severe cases, black or bloody stools.

Since these symptoms of atrophic gastritis can be common to other gastrointestinal conditions, it is essential to consult a doctor for a correct diagnosis.

Potential Complications in Atrophic Gastritis

Left untreated, atrophic gastritis can develop into serious complications. Besides pernicious anemia, characterized by fatigue, weakness, and other health problems, stomach cancer can also occur. Atrophic gastritis is considered a major risk factor for its development.

The absorption of vitamin B12, one of the most important vitamins, is also affected by atrophic gastritis. A protein produced by the stomach called *intrinsic factor* is essential for vitamin B12 absorption. In its absence, it can no longer be absorbed properly, leading to pernicious anemia. Vitamin B12 deficiency can affect the central and peripheral nervous system, manifesting as tingling, numbness, balance disorders, walking difficulties, memory loss, and even dementia.

Although to a lesser extent, atrophic gastritis can also affect the absorption of other vitamins, such as iron and folic acid, contributing to different types of anemia. Furthermore, vitamin deficiencies increase the risk of infections, depression, osteoporosis, and other conditions.

This is why regular monitoring and early treatment of vitamin deficiencies can prevent serious complications and significantly improve quality of life.

Atrophic Gastritis: Recommended Diet

Diet plays a major role in managing atrophic gastritis. A balanced diet tailored to individual needs can help alleviate symptoms, protect the gastric lining, and prevent complications.

Atrophic Gastritis: Recommended Diet Plan

First and foremost, it is important that the foods consumed when suffering from gastritis are easy to digest. Ideally, you should opt for soft, boiled, or baked foods that do not irritate the gastric lining.

Secondly, choose foods rich in probiotics, as they will help restore the intestinal bacterial flora.

Thus, foods allowed and even recommended in atrophic gastritis include:

• lean proteins: chicken, turkey, fish, tofu, eggs;
• low-acidity vegetables: potatoes, carrots, zucchini, pumpkin, cauliflower, broccoli;
• whole grains: rice, whole wheat bread, whole wheat pasta;
• ripe fruits: apples, bananas, pears;
• dairy products: plain yogurt, cottage cheese.

Additionally, in some cases, besides the diet for chronic atrophic gastritis, your doctor may recommend dietary supplements. Most often, these are vitamin B12 or probiotics, whose absorption may be affected during gastritis.

Some Foods to Avoid

Irritating foods for the stomach should be avoided: spicy foods (hot peppers, pepper, mustard), acidic foods (citrus, tomatoes, vinegar), and fatty or fried foods. Alcohol should also be avoided as it can worsen stomach inflammation. Coffee and carbonated drinks should also not be consumed, as they can increase gastric acidity.

Make sure to chew food well to aid digestion and drink plenty of water to avoid dehydration. Regular, small meals are preferable, as they can prevent overloading the stomach.

A personalized meal plan, adapted to individual needs, is essential for effective management of atrophic gastritis.

Chronic Atrophic Gastritis: Diagnosis and Effects on Digestive Function

Individuals with atrophic gastritis should be vigilant for the onset of anemia symptoms and undergo periodic medical examinations. Diagnosis requires a thorough evaluation, which must be performed by a specialist physician.

The main diagnostic methods include:

1. Upper digestive endoscopy. This procedure allows the physician to directly visualize the stomach lining and collect biopsies for histopathological examination. Biopsy is essential for confirming the diagnosis and evaluating the degree of gastric lining atrophy.
2. Laboratory tests

Blood tests are performed to assess levels of:

• hemoglobin, essential for detecting anemia;
• vitamin B12, to check for deficiency or proper absorption;
• folic acid, to rule out other causes of anemia;
• anti-intrinsic factor antibodies, to confirm the diagnosis of pernicious anemia, or anti-parietal cell antibodies, characteristic of autoimmune atrophic gastritis.

The Schilling test is also used to assess vitamin B12 absorption.

Importance of Monitoring and Periodic Investigations

Regular monitoring is particularly important because it allows for timely treatment initiation and prevention of symptom worsening. Furthermore, it helps in the early detection of potential precancerous lesions.

Treatment for vitamin deficiencies and pernicious anemia consists of vitamin B12 supplements, sometimes for life.

Regarding the treatment of atrophic gastritis, it may include:

• treatment of Helicobacter pylori infection, when applicable;
• medications to reduce gastric acidity;
• lifestyle changes: a balanced diet, avoiding alcohol and smoking, reducing stress.

In conclusion, atrophic gastritis is a serious condition and can have significant health consequences. Vitamin deficiencies and pernicious anemia are among the most common complications and cannot be overlooked. Constant monitoring and adherence to medical recommendations are the surest way to prevent the worsening of the disease and maintain a good quality of life. If you have symptoms like those presented, do not postpone your visit to the doctor.

References:

https://my.clevelandclinic.org/health/diseases/24217-atrophic-gastritis

https://www.healthline.com/health/atrophic-gastritis#causes

https://www.medicalnewstoday.com/articles/322153#what-is-atrophic-gastritis

https://www.verywellhealth.com/atrophic-gastritis-definition-causes-prevention-6499581