Primary Causes of Acid Reflux Explained
How Acid Reflux Develops
Acid reflux occurs when stomach acid flows backwards into the oesophagus, the tube connecting your mouth to your stomach. Normally, the lower oesophageal sphincter (LOS) acts as a one-way valve, opening to allow food into the stomach and closing to prevent acid from escaping. When this muscular ring weakens or relaxes inappropriately, stomach acid can travel upwards, causing the burning sensation known as heartburn.
Anatomical Factors
Several structural issues can contribute to acid reflux. A hiatus hernia, where part of the stomach pushes through the diaphragm, is particularly common and can weaken the LOS. Pregnancy can also increase reflux risk due to hormonal changes and physical pressure from the growing baby. Some people may have naturally weaker sphincter muscles, making them more susceptible to acid reflux episodes.
Dietary Triggers and Food Sensitivities
Certain foods and beverages are well-known acid reflux triggers. Spicy foods, tomatoes, citrus fruits, chocolate, mint, garlic, and onions can stimulate acid production or relax the LOS. Fatty and fried foods delay stomach emptying, increasing reflux risk. Caffeinated drinks, alcohol, and carbonated beverages may also trigger symptoms. Individual sensitivities vary, so keeping a food diary can help identify personal triggers.
Lifestyle Contributing Factors
Excess weight puts additional pressure on the abdomen, pushing stomach contents upwards. Smoking weakens the LOS and reduces saliva production, which normally helps neutralise acid. Eating large meals stretches the stomach and increases acid production, whilst lying down soon after eating allows gravity to work against you. Stress doesn't directly cause acid reflux but may worsen symptoms and increase acid production.
Medical Conditions and Medications
Several conditions can increase acid reflux risk. Gastroparesis slows stomach emptying, allowing more time for acid to reflux. Scleroderma can affect oesophageal function. Some medications, including certain blood pressure tablets, sedatives, and anti-inflammatories, may contribute to symptoms. Helicobacter pylori infection can also influence stomach acid production.
Treatment Approaches Available
Effective acid reflux management typically involves lifestyle modifications combined with appropriate medication when needed. Proton pump inhibitors (PPIs) like omeprazole are often the first-line treatment for persistent symptoms, working by reducing stomach acid production. EverydayMeds offers several PPI options including Omeprazole 20mg Capsules, Lansoprazole 15mg Capsules, and Pantoprazole 20mg Tablets. For those requiring branded alternatives, Losec MUPS 20mg provides the same active ingredient as omeprazole. H2 blockers like Famotidine Tablets offer an alternative approach, particularly for nighttime symptoms. Treatment selection depends on symptom severity, frequency, and individual response, with healthcare professionals able to recommend the most suitable option through online consultations.






