Low-acid, mild foods like bananas, melons, oatmeal, and lean proteins are your best options when heartburn hits during pregnancy. The burning sensation is extremely common, especially in the third trimester, and what you eat (and how you eat it) can make a real difference in how often it flares up.
Pregnancy heartburn happens for two reasons working together. The hormone progesterone, which rises steadily throughout pregnancy, relaxes the muscular valve between your esophagus and stomach. That valve normally stays shut to keep stomach acid where it belongs, but progesterone loosens it enough for acid to splash upward. On top of that, your growing uterus presses against your stomach, pushing its contents upward. That’s why heartburn tends to get worse in the third trimester, when the uterus is largest.
Foods That Help Calm Heartburn
The general principle is simple: choose foods that are low in acid, low in fat, and easy to digest. These tend to move through your stomach faster and produce less acid in the process.
- Melons: Watermelon, cantaloupe, and honeydew are among the lowest-acid fruits. They’re also hydrating, which helps.
- Bananas: Naturally low in acid and gentle on the stomach. A good snack when you need something quick.
- Oatmeal and brown rice: Mild, filling complex carbohydrates that absorb some stomach acid rather than triggering more of it.
- Lean chicken or turkey breast: Remove the skin and bake, grill, or broil it. The protein keeps you full without the fat that slows digestion.
- Vegetables like lettuce, celery, sweet peppers, and fennel: These are easy on the stomach and unlikely to cause gas. Fennel in particular has a mild natural soothing effect on the digestive tract.
- Whole grain bread and crackers: Plain and absorbent, these can help soak up excess acid, especially first thing in the morning.
You don’t need to eat bland, boring food for months. The goal is to build meals around these gentler ingredients while keeping the known triggers to a minimum.
Foods and Drinks to Avoid
Spicy foods and high-fat meals are the two most consistent triggers for pregnancy heartburn. Fat slows stomach emptying, which means acid sits around longer and has more opportunity to creep upward. Spicy dishes directly irritate the esophageal lining on top of that.
Carbonated drinks are another frequent culprit. The gas they introduce into your stomach increases pressure and can force acid past that already-relaxed valve. Coffee and other caffeinated beverages stimulate acid production and relax the valve further. Citrus fruits and tomato-based sauces are naturally acidic and can worsen the burn even if they don’t cause it on their own.
Chocolate and peppermint, unfortunately, also relax the esophageal valve. If you notice a pattern with either of these, cutting back is worth trying. Fatty cuts of meat, fried food, and rich cream sauces fall into the same high-fat category that slows digestion and makes reflux more likely.
How You Eat Matters as Much as What You Eat
Meal size and timing may actually matter more than the specific foods on your plate. Eating five or six smaller meals throughout the day instead of three large ones keeps your stomach from getting overly full, which reduces the upward pressure on that valve. A stomach packed tight after a big dinner is practically guaranteed to push acid into your esophagus, especially when you lie down.
That brings up the most important habit change: the gap between your last meal and bedtime. A study of pregnant women found that eating within two hours of lying down was one of the strongest risk factors for reflux, with odds roughly 12 times higher than in women who left a longer gap. That same short meal-to-bed time was also linked to reflux-related insomnia. Aim for at least two to three hours between your last food and the time you go to sleep.
Eating slowly and chewing thoroughly helps too. The faster you eat, the more air you swallow, and the less time your stomach has to signal that it’s full before you’ve overeaten. Sipping fluids between meals rather than drinking large amounts with food can prevent your stomach from filling up too quickly.
What to Drink
Water is the safest and simplest choice. Sip it throughout the day rather than gulping large amounts at meals. Cold milk can sometimes provide short-term relief because it temporarily coats the esophagus, though full-fat milk may backfire since the fat content can trigger more acid production later. Skim or low-fat milk is the better option if milk seems to help you.
Caffeine-free ginger tea is a popular remedy, and ginger does have a long history of use for nausea and digestive discomfort. However, there is no established safe dose of ginger for pregnancy. Small amounts of fresh ginger steeped in hot water are generally considered mild, but concentrated ginger supplements and extracts are a different story. Some European food safety authorities have recommended that pregnant women avoid concentrated ginger products entirely, due to a lack of safety data. Stick to the culinary amounts you’d use in cooking or a light tea, and skip the capsules.
Herbal teas without caffeine, like chamomile, can be soothing, though you should avoid peppermint tea since peppermint relaxes the esophageal valve. Steer clear of citrus juices, regular coffee and tea, and anything carbonated.
When Antacids Are an Option
Calcium-based antacids are widely used during pregnancy when diet changes alone aren’t enough. They work by neutralizing stomach acid on contact and provide quick, temporary relief. The recommended daily calcium intake during pregnancy is 1,000 mg (or 1,300 mg if you’re under 19), with an upper limit of 2,500 mg per day for adults.
Staying within that upper limit matters. Taking more calcium carbonate than recommended has been associated with a higher chance of low birth weight. There have also been rare reports of newborn seizures when very high doses were used late in pregnancy. Excessive intake can cause a condition called milk-alkali syndrome, where calcium levels in the blood get dangerously high, potentially leading to kidney problems. If you’re already taking a prenatal vitamin with calcium, factor that into your daily total before reaching for extra antacids.
Upper Abdominal Pain That Isn’t Heartburn
Most pregnancy heartburn is uncomfortable but harmless. However, upper abdominal or chest pain that feels different from your usual heartburn, especially if it comes with a severe headache, vision changes, sudden swelling, or shortness of breath, can be a sign of preeclampsia. This is a serious pregnancy complication involving high blood pressure that typically appears after 20 weeks. The upper abdominal pain from preeclampsia tends to be persistent and intense, often located under the ribs on the right side, and it doesn’t respond to antacids or dietary changes. If your pain fits that description or comes with any of those other symptoms, contact your provider right away.