What is Acid Reflux? Symptoms, Causes, and the Reflux Diet

Acid reflux is a chronic digestive condition where stomach acid flows back into the esophagus, causing a burning sensation behind your chest and leaving a bitter taste in your mouth. This happens when the valve between the esophagus and the stomach relaxes abnormally or weakens. Often worsening after heavy meals or when lying down at night, these symptoms can directly impact your daily quality of life.

• It is the backward flow of stomach contents and acid into the esophagus.
• The most common symptom is a burning sensation in the middle of the chest (heartburn).
• Excess weight, pregnancy, and high-fat foods increase the risk.
• Diagnosis is usually made through a clinical examination and endoscopy.
• Treatment involves a reflux diet, acid-suppressing medications, and sometimes surgical methods.

What is Acid Reflux?

Under normal circumstances, as the food we eat travels down the esophagus to the stomach, a muscular valve called the lower esophageal sphincter opens to let it pass. It then closes tightly to prevent stomach acid from escaping upward. When this mechanism fails, the powerful acids and enzymes meant for digestion wash back up into the esophagus. If this acid leakage, which affects about one in five adults, occurs more than twice a week, it is diagnosed as gastroesophageal reflux disease (GERD).

Unlike the stomach, the inner lining of the esophagus does not have a protective layer against acid. Therefore, the escaping acid causes irritation and inflammation in the esophagus. While occasional heartburn after overeating is considered normal, a constant recurrence of this issue requires medical attention. Although the disease can be seen in all age groups, it becomes particularly common after our thirties.

Causes of Heartburn and Risk Factors

When looking at the causes of heartburn, modern dietary habits and lifestyle factors take the lion's share. Any condition that relaxes the valve between the stomach and esophagus or increases intra-abdominal pressure can trigger reflux. Excess weight and obesity create mechanical pressure on the stomach due to abdominal fat, making it easier for acid to escape upward. Through a similar mechanism, expectant mothers frequently experience symptoms during pregnancy as the growing uterus pushes the stomach upward.

Certain foods directly weaken this valve system. Rich, tomato-paste-heavy dishes with onions and garlic—which are beloved staples in Turkish cuisine—along with deep-fried foods, syrupy desserts, and strong, steeped black tea are prime culprits. Chocolate, mint, caffeinated beverages, and alcohol also reduce the valve's pressure. An anatomical problem called a hiatal hernia is another major risk factor. When the upper part of the stomach bulges through the diaphragm into the chest cavity, it completely disrupts the valve's function. Furthermore, smoking reduces saliva production, hindering the esophagus's ability to naturally wash away and clear the acid.

Acid Reflux Symptoms

While the severity of the disease varies from person to person, acid reflux symptoms generally become noticeable about an hour after eating. The most typical sign is a severe burning sensation behind the breastbone, which sometimes radiates to the neck and back. Additionally, it is common for stomach contents or sour fluid to regurgitate into the mouth. It is highly characteristic for these complaints to worsen when you bend over, lift something heavy, or lie flat on your back.

However, the disease may not always present with these classic symptoms. Hidden complaints, known as atypical symptoms, can lead to the problem being confused with ear, nose, and throat (ENT) or chest diseases. If your voice is hoarse when you wake up in the morning, if you feel a constant need to clear your throat during the day, or if you have a persistent dry cough, the culprit might be stomach acid seeping into your airways overnight. Asthma-like shortness of breath and a constant feeling of a lump in the throat are also among these hidden signs. Coughing fits that wake you from sleep are a particularly strong indicator that acid has reached the larynx.

How is Reflux Diagnosed?

During the diagnostic process, your physician will first listen carefully to your symptoms, dietary habits, and daily routine. For patients showing typical symptoms, a clinical evaluation is usually sufficient, and acid-suppressing treatment is initiated directly to monitor the patient's response. However, if the complaints have been ongoing for a long time, if there is no response to medication, or if there are high-risk signs like difficulty swallowing, advanced tests are required.

The most commonly used and reliable method is an endoscopy. Using a thin, flexible tube with a lighted camera at the tip, the esophagus, stomach, and duodenum are examined directly. Because patients are given mild sedation to induce sleepiness during the procedure, no pain or nausea is felt. Endoscopy allows doctors to clearly see the damage, ulcers, or cellular changes caused by acid in the esophagus. When necessary, a small tissue sample (biopsy) can be taken to confirm whether your symptoms are related to gastritis. Additionally, a pH-metry test, which measures the amount of acid escaping into the esophagus over 24 hours, is another precise method used to confirm the diagnosis.

Treatment: What Relieves Reflux and the Reflux Diet

Success in treating the disease relies on a combination of medical intervention and changes to the patient's daily habits. The first and most important answer to what relieves reflux is reducing portion sizes and avoiding an overly full stomach. Eating small, frequent meals keeps intra-abdominal pressure balanced. Especially in a bustling metropolis like Istanbul, getting stuck in evening traffic and delaying dinner until after 8:00 PM is a common pitfall. Finishing dinner at least three hours before bedtime and completely cutting out late-night snacks will largely prevent nighttime attacks. Elevating the head of your bed by about 15 centimeters—by placing supports under the bed frame, not just by using extra pillows—makes it harder for acid to travel upward, thanks to gravity.

When following a reflux diet, acidic fruits (oranges, grapefruits, lemons), tomatoes, hot spices, overly fatty foods, coffee, and carbonated drinks should be removed from your meal plan. For medical treatment, syrups that neutralize stomach acid or proton pump inhibitors (stomach protectors) that stop acid production at the cellular level are prescribed. In cases where medication and diet are insufficient, a large hiatal hernia is present, or the patient does not want to take medication for life, the stomach valve can be repaired using laparoscopic (closed) surgical methods.

Complications and Risk Groups

Stomach acid is structurally a very powerful fluid, and the inner lining of the esophagus is not built to withstand it for long periods. When the disease is left untreated for years, chronic inflammation (esophagitis) and deep ulcers develop in the esophagus. The continuous cycle of acid exposure and healing eventually creates scar tissue, leading to strictures (narrowing) that make swallowing solid foods difficult.

The most serious complication is a condition called Barrett's esophagus. To resist the acid, the cells in the lower part of the esophagus change shape and begin to resemble stomach cells. This cellular transformation is considered a precancerous lesion that significantly increases the risk of esophageal cancer. Older adults, individuals who have struggled with obesity for more than a decade, and heavy smokers are at a much higher risk for these severe complications. For this reason, chronic heartburn should never be brushed off with temporary fixes.

When to See a Doctor?

Mild heartburn experienced once or twice a week, especially after a heavy meal, usually stems from dietary mistakes. However, certain symptoms can herald a more serious underlying issue, advanced tissue damage, or a different medical condition. If you experience any of the following alarm symptoms, you should consult a specialist without delay:

• A feeling of food getting stuck, pain when swallowing, or a sensation that food is lodged in your chest
• Unexplained weight loss when you are not dieting
• Persistent, severe vomiting episodes
• Vomit that looks like coffee grounds or black, tarry stools
• Pain that progressively worsens, prevents eating and drinking, and does not respond to medication
• Waking up with a constant feeling of choking and shortness of breath

Severe chest pain can sometimes be confused with a heart attack. If the pain radiates to your left arm, neck, jaw, or back, and is accompanied by cold sweats, dizziness, and shortness of breath, this could be a heart attack, not reflux. In such an emergency, you must call 112 for an ambulance immediately without wasting any time.

The Process at BHT CLINIC

At our hospital, the diagnosis and treatment of digestive system complaints are handled with a patient-centered and multidisciplinary approach. Our specialist physicians in the Gastroenterology department will conduct a detailed clinical evaluation for your symptoms. In our advanced technology endoscopy units, diagnostic procedures are performed completely painlessly and comfortably under sedation. You can return to your normal daily life on the same day after the procedure.

During your treatment journey, our expert dietitians will help you create a sustainable nutrition plan tailored to your lifestyle, working hours, and palate. In cases requiring surgical intervention, our general surgery team successfully performs laparoscopic repair operations. For suspected heart attacks presenting as severe chest pain or sudden bleeding emergencies, our fully equipped 24/7 emergency department is always by your side. If you have previous blood tests or endoscopy reports, bringing them with you to the hospital will speed up the diagnostic process.

Frequently Asked Questions

Can acid reflux be completely cured?

Reflux is a chronic tendency; with the right lifestyle changes and regular medication, symptoms can be completely controlled. However, if you abandon your diet, gain excessive weight, or go through highly stressful periods, the symptoms may return. In cases caused by anatomical defects, a permanent solution is usually achieved through surgical interventions.

Does drinking milk help with heartburn?

Drinking cold milk can temporarily soothe the esophagus and relieve burning within minutes. However, the dense fat and calcium in milk cause the stomach to secrete much more acid a few hours later, making the symptoms even more severe than before; therefore, it is not recommended as a treatment.

Can reflux patients drink coffee?

Due to its high caffeine content, coffee relaxes the protective valve between the stomach and esophagus and stimulates stomach acid secretion. It is highly recommended that patients limit their coffee consumption or switch to decaffeinated alternatives, especially during flare-ups when symptoms are intense.

Why does reflux happen during pregnancy?

The high levels of progesterone hormone secreted during pregnancy relax all digestive system muscles, including the stomach valve. In addition, the mechanical pressure exerted by the growing baby from below makes it easier for acid to escape into the esophagus. This condition usually resolves on its own after birth once intra-abdominal pressure decreases.

Does stress trigger reflux?

While stress does not directly increase stomach acid, it affects the nervous system and alters pain perception, making you feel even a mild acid leak much more intensely. Furthermore, poor dietary habits, excessive tea and coffee consumption, and eating too quickly during stressful periods indirectly worsen the symptoms.

To get your symptoms under control, create the right nutrition plan, and achieve a healthy digestive system, you can consult our specialist physicians. For appointment scheduling and detailed information, you can visit our appointment page or contact us 24/7 via our call center at 0850 811 34 00.

This article is for informational purposes only; please consult your physician for diagnosis and treatment.