Is Baking Soda Safe for Pregnant Women?

Baking Soda: More Than a Pantry Staple

Most kitchens stash away a box of baking soda. Folks use it for baking, cleaning, or calming an upset stomach. Growing up, my grandmother always said a teaspoon in water sorted out her heartburn after a heavy meal. Women who are pregnant face plenty of “old wives’” advice about common remedies like this. Still, not everything safe before carries over during pregnancy.

What Happens When You Swallow Baking Soda?

Sodium bicarbonate, known most as baking soda, works by neutralizing stomach acid. That’s why it shows up as a home remedy for heartburn. The trouble is, a single teaspoon packs around 1,260 milligrams of sodium. Too much sodium strains the kidneys and leads to water retention, two things that can become more serious during pregnancy.

A study out of the American Journal of Obstetrics and Gynecology looked into the effects of excessive sodium and found it can increase the risk for high blood pressure, or preeclampsia, during pregnancy. My sister went through months of swelling and high blood pressure thanks to innocent mistakes like these. That personal lesson sticks with me. Something as simple as an extra pinch of sodium can tip the scales in the wrong direction for both the mother and the baby.

Baking Soda’s Effect on the Stomach

People often use baking soda to treat heartburn. During pregnancy, increased progesterone relaxes the esophagus which leads to more acid reflux. Doctors frequently warn against using baking soda to fight this. The sodium spike brings risks, and combining baking soda with natural acid in the stomach produces carbon dioxide, which can cause gas and bloating.

A report from the National Institutes of Health points to rare but serious outcomes if someone drinks large amounts: metabolic alkalosis, which means the body’s acid-base balance gets thrown off. This can be dangerous, increasing chances for muscle twitching, irritability, or more rarely, seizures.

Soothing Heartburn Safely

Doctors usually recommend antacids designed for pregnancy, like calcium carbonate (Tums), which does not contain extra sodium. Drinking more water and eating smaller meals helps, too. I have seen friends let go of spicy takeout and late-night snacks for a while. Practicing moderation made a difference in their comfort.

Pharmacies and supermarkets offer many pregnancy-safe options. My wife’s OB-GYN suggested propping up pillows to sleep—worked better than soda water any day. Keeping a journal of triggers, wearing looser clothes, and avoiding lying down after eating are simple moves. Rarely does heartburn stick around the entire nine months, but those middle-of-the-night flare-ups can feel endless.

Baking Soda for Skin and Baths

Many expectant mothers also use baking soda in baths to help itchy bellies or rashes. Most dermatologists recognize this as safe when used in small amounts mixed with plenty of water. A tablespoon in a full bathtub doesn’t soak the skin with too much sodium. Nobody needs to scrub raw, but a gentle rinse often brings relief.

Ask Before You Try

Baking soda finds a place in kitchen experiments and minor home cleaning. Pregnancy, though, brings more delicate chemistry. Before picking up a home remedy, asking an OB-GYN keeps things on the right track. Modern prenatal care focuses on both safety and comfort—that means sticking with what’s proven.