Heartburn During Pregnancy: Causes, Prevention, and Relief

Heartburn occurs when stomach acid flows back into the oesophagus, the tube that connects the mouth to the stomach. This acid reflux causes a burning sensation in the chest, throat, or upper abdomen.

Although commonly called "heartburn," the condition has nothing to do with the heart. Instead, it is a digestive issue caused by acid irritating the lining of the oesophagus.

How Common Is Heartburn During Pregnancy?

Heartburn is extremely common during pregnancy. Many women experience it, particularly during the second and third trimesters. As pregnancy progresses, hormonal changes and increased pressure from the growing uterus can make acid reflux more likely.

Can Heartburn Be a Sign of Early Pregnancy?

Yes, heartburn can occur in early pregnancy for some women. Rising pregnancy hormones, particularly progesterone, can relax the muscles of the digestive tract, including the valve between the stomach and oesophagus. This may allow stomach acid to move upward and cause symptoms. However, heartburn alone is not considered a reliable sign of pregnancy and is usually accompanied by other symptoms.

Understanding the causes of pregnancy heartburn can help you manage and reduce symptoms more effectively.

What Causes Heartburn During Pregnancy?

Several factors can contribute to heartburn during pregnancy:

• Increased progesterone levels relax the oesophageal sphincter.
• Slower digestion during pregnancy allows food to remain in the stomach longer.
• A growing baby places pressure on the stomach.
• Large meals can increase stomach pressure.
• Certain foods and drinks may trigger acid reflux.

Heartburn and Indigestion

Heartburn and indigestion are often confused because they can occur together.

Heartburn typically causes:

• A burning sensation in the chest
• Acid taste in the mouth
• Discomfort after eating

Indigestion may include:

• Bloating
• Nausea
• Feeling overly full
• Stomach discomfort

While they are different conditions, both are common during pregnancy and may share similar triggers.

Trigger Foods and the Role of Nutrition & Lifestyle Choices

Certain foods and beverages can worsen heartburn symptoms. Common triggers include:

• Spicy foods
• Fried and fatty foods
• Chocolate
• Citrus fruits
• Tomato-based products
• Carbonated drinks
• Coffee and caffeinated beverages
• Very sugary foods

Since triggers vary from person to person, keeping a food diary can help identify which foods worsen your symptoms.

Lifestyle factors can also increase the likelihood of heartburn, including:

• Eating large meals
• Lying down immediately after eating
• Eating late at night
• Wearing tight clothing around the waist

While heartburn cannot always be completely prevented, several strategies may help minimize symptoms.

Eat Smaller, More Frequent Meals

Rather than three large meals per day, aim for five to six smaller meals. This helps reduce pressure on the stomach and lowers the likelihood of acid reflux.

Avoid Trigger Foods

Identifying and limiting foods that trigger symptoms can make a significant difference.

Stay Upright After Eating

Wait at least two to three hours after meals before lying down. This allows digestion to occur and helps prevent stomach acid from flowing back into the oesophagus.

Drink Fluids Between Meals

Consuming large amounts of liquid during meals may increase stomach fullness. Drinking between meals instead may help reduce discomfort.

Sleep with Your Head Elevated

Elevating the upper body slightly while sleeping may help reduce nighttime heartburn by keeping stomach acid from moving upward.

If heartburn occurs despite preventive measures, several remedies may help provide relief.

Choose Gentle, Easy-to-Digest Foods

Many pregnant women find relief from foods such as:

• Natural yogurt
• Milk
• Bananas
• Oatmeal
• Boiled potatoes
• Cooked carrots
• Steamed spinach

These foods are generally gentle on the digestive system and less likely to trigger acid reflux.

Eat Slowly

Taking time to chew food thoroughly can improve digestion and reduce pressure on the stomach.

Wear Comfortable Clothing

Avoid tight-fitting clothing around the abdomen, as it can increase pressure and promote reflux.

Adjust Your Sleeping Position

Using an extra pillow or slightly raising the head of your bed may reduce symptoms during the night.

Speak with Your Healthcare Provider

If heartburn becomes severe, persistent, or impacts your ability to eat or sleep, consult your healthcare provider. They can recommend pregnancy-safe treatment options and determine whether further evaluation is needed.

Are Heartburn and Acid Reflux the Same?

Not exactly. Acid reflux refers to the movement of stomach acid into the oesophagus, while heartburn is the burning sensation that results from this reflux. Heartburn is one of the most common symptoms of acid reflux.

How to Relieve Heartburn in Pregnancy?

You can relieve heartburn by:

• Eating smaller meals
• Avoiding trigger foods
• Remaining upright after eating
• Sleeping with your upper body elevated
• Choosing gentle, easy-to-digest foods

How Does Heartburn Feel Like in Pregnancy?

Heartburn typically feels like:

• A burning sensation behind the breastbone
• Burning in the throat
• A sour or acidic taste in the mouth
• Discomfort after meals or when lying down

How to Get Rid of Heartburn During Pregnancy?

While heartburn may not disappear completely until after delivery, symptoms can often be managed through dietary adjustments, lifestyle changes, and pregnancy-safe treatments recommended by a healthcare professional.

What Causes Heartburn During Pregnancy?

Heartburn is mainly caused by pregnancy hormones that relax the valve between the stomach and oesophagus, combined with pressure from the growing uterus. This allows stomach acid to flow back into the oesophagus more easily.