What Causes GERD? A Complete Explanation by Prakob Punmanee (Mr.Hotsia)
For more than 30 years I have traveled throughout Thailand, Laos, Cambodia, Vietnam, Myanmar, India, and many parts of Asia 🌏. My name is Prakob Punmanee (Mr.Hotsia), and during these journeys I have met thousands of people from different cultures. Despite the differences in food and lifestyle, one health issue appears almost everywhere. That issue is GERD which stands for Gastroesophageal Reflux Disease.
Understanding what causes GERD helps you prevent discomfort and live more comfortably. This article combines practical medical knowledge with personal experience from decades of traveling and eating across Asia.
What Is GERD
GERD is a long term or chronic form of acid reflux. It happens when stomach acid flows upward into the esophagus frequently and causes irritation. While acid reflux can happen to anyone once in a while, GERD is persistent. It affects daily life, sleep, and overall comfort.
The main reason GERD happens is that the lower esophageal sphincter, a ring of muscle at the bottom of the esophagus, does not close properly or relaxes at the wrong time. When this happens, acid escapes from the stomach repeatedly.
The Main Causes of GERD
Based on science and my travel experiences across Asia, these are the most common causes of GERD.
1. Weak or Relaxed Lower Esophageal Sphincter
The lower esophageal sphincter (LES) is like a gate. When it works correctly, it opens to let food into the stomach and closes to keep acid where it belongs.
GERD often starts when:
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The LES becomes weak
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The LES relaxes too often
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The LES does not close tightly
I learned about this from a doctor in Vietnam who treated many people with reflux. He explained that lifestyle and food choices directly affect this muscle.
2. Eating Large or Heavy Meals
Across Asia, meals can be rich, delicious, and heavy. From Indian curry to Thai fried dishes, these meals stretch the stomach. When the stomach is too full, pressure increases and pushes acid upward.
During my trips in India, after enjoying large masala meals, I often felt discomfort. This taught me how portion size influences GERD.
3. Eating Late at Night
Night markets in Laos, Thailand, Vietnam, and Cambodia open late. Travelers including myself often enjoy meals at midnight or later. But lying down soon after eating makes GERD significantly worse.
Gravity helps keep acid down. If you lie flat too soon, acid rises easily.
4. Spicy, Acidic, and Oily Foods
Spicy food is a big part of Asian culture. I have eaten extremely spicy dishes from Thailand to Myanmar. These foods irritate the esophagus and worsen reflux.
Common GERD triggers include:
🌶️ Spicy dishes
🍅 Tomato based foods
🍟 Fried and oily meals
🍛 Curry and rich sauces
🥤 Carbonated or acidic drinks
These foods increase acid production and slow digestion which increases pressure inside the stomach.
5. Caffeine and Alcohol
Thai iced tea, Vietnamese drip coffee, Indian chai, and alcohol are popular beverages across Asia. Caffeine and alcohol both relax the LES muscle and increase the chance of GERD.
I love strong Vietnamese coffee, but when I drink too much, reflux often returns later in the day.
6. Smoking
Smoking weakens the LES and irritates the esophagus. Many smokers I met in Myanmar and Laos told me they often feel burning after meals. Smoking also reduces saliva which normally neutralizes stomach acid.
7. Stress and Poor Sleep
Years of traveling taught me that the digestive system is strongly affected by stress. When the mind is tense, digestion becomes slower and more sensitive.
Lack of sleep also increases GERD because the body cannot regulate acid production effectively.
During long travel periods with irregular schedules I often noticed that reflux became more frequent, even when I ate simple foods.
8. Being Overweight
Extra body weight adds pressure to the stomach, which pushes acid upward. While not everyone with GERD is overweight, this is a common cause worldwide.
9. Hiatal Hernia
A hiatal hernia occurs when part of the stomach moves above the diaphragm. This makes it easier for acid to escape into the esophagus. A doctor in Chiang Mai once explained this to me when I interviewed him about digestive problems during travel.
10. Slow Digestion or Delayed Stomach Emptying
When the stomach takes too long to empty, acid stays inside for a longer time. This increases pressure and raises the chance of GERD. Oily and fried foods are common triggers for delayed digestion.
11. Certain Medications and Supplements
Some medications relax the LES or irritate the stomach. Even vitamins taken on an empty stomach can cause discomfort. Many travelers told me that iron supplements give them reflux if taken without food.
My Personal Travel Experience With GERD
Across thousands of meals in different countries I learned that GERD does not depend only on food. The timing of meals, posture, stress level, and daily habits all play a big role.
I remember eating in Laos where the food was extremely spicy and strong. The burning sensation came quickly. In India, oily curries sometimes triggered reflux hours after eating. In Myanmar, a night meal at 1 am caused symptoms when I went to sleep too soon after.
Traveling teaches you to listen to your body. Eating slowly, choosing lighter meals at night, walking after eating, and resting well all help reduce GERD symptoms.
10 FAQs About What Causes GERD
1. What is the main cause of GERD
The main cause is a weak or relaxed lower esophageal sphincter which lets acid move upward.
2. Does spicy food cause GERD
Yes. Spicy foods can irritate the esophagus and increase acid production.
3. Can eating late at night cause GERD
Yes. Lying down soon after eating allows acid to rise more easily.
4. Does coffee cause GERD
Coffee and other caffeinated drinks relax the LES and increase stomach acid.
5. Can stress trigger GERD
Stress affects digestion and increases sensitivity to acid, making GERD more likely.
6. Does alcohol make GERD worse
Yes. Alcohol weakens the LES and irritates the stomach lining.
7. Can overweight people get GERD more easily
Extra body weight increases pressure on the stomach and often leads to reflux.
8. What foods are most likely to cause GERD
Spicy foods, fried dishes, tomato based sauces, chocolate, caffeine, and acidic drinks.
9. Can smoking cause GERD
Smoking weakens the LES and reduces saliva which normally protects the esophagus.
10. Can traveling increase GERD
Yes. Irregular meals, unfamiliar foods, stress, and lack of sleep can all make GERD more common.
I’m Mr.Hotsia, sharing 30 years of travel experiences with readers worldwide. This review is based on my personal journey and what I’ve learned along the way. Learn more |