Medically speaking, switching formulas shouldn’t hurt your baby. Some infants do have diarrhea, constipation, or feeding problems as they adjust to a new formula. But a change may not be necessary.

This article will help you decide whether there’s a problem that needs to be addressed, how to choose a new formula, and what other options you have for treating acid reflux in your baby.

The Happy Spitter

If your baby has gastroesophageal reflux and is spitting up, but they’re gaining weight and don’t have other symptoms, you may not need to ​change their formula. Experts estimate 50% of infants younger than 3 months spit up at least one time a day.

You may wonder whether your little one is keeping enough of their food down. Try to keep in mind that the amount they spit up often looks like much more than it actually is.

In the first few months, babies normally gain between about 1.5 and 2 pounds a month. If your child is gaining weight, that’s a good sign that their spitting up isn’t a problem.

Babies who spit up but don’t have other symptoms are often called “happy spitters.” Experts often recommend that you simply wait and see if they stop spitting up as they get older.

Problem Reflux Symptoms

Signs that reflux is causing a problem include a baby who:

Isn’t gaining weight or is losing weightIs often fussy or irritableFrequently chokes, wheezes, or has difficulty breathingOften refuses to eat (dysphagia)Arches their back during or right after feedingsHas a chronic coughHas a hoarse voice or cry

If a child is spitting up and has any of the symptoms listed above, they may have gastroesophageal reflux disease (GERD). You should get them to a pediatrician for diagnosis and treatment.

Changing Formula for Reflux

Unless your baby has other symptoms of a formula intolerance—like a lot of gas, diarrhea, or bloody stools in addition to vomiting or spitting up and being fussy—then changing formula isn’t usually helpful.

If you’re going to try a different formula, then a hypoallergenic formula, like Alimentum or Nutramigen, may be the best choice. Some studies have shown less vomiting in babies who changed to this type of formula.

Enfamil AR or Similac for Spit-Up are specialty formulas that can be helpful for babies with reflux. They may be an option if your child doesn’t have a milk protein allergy or lactose intolerance.

Diagnosing Reflux

Healthcare providers generally diagnose reflux based on the characteristic symptoms.

If they suspect your baby has an obstruction or something else causing the vomiting, they may order X-rays called an upper gastrointestinal (GI) series. Another possible test is a pH probe, but it’s an invasive test and isn’t done often.

If your baby has persistent symptoms, especially with low weight gain, you may be sent to a pediatric gastroenterologist. In rare and serious cases, a surgical procedure may be an option.

Treating Reflux

For babies with reflux and GERD, treatments can include lifestyle changes and reflux medications.

Lifestyle changes include:

Thickening formula with rice cereal (you may have to enlarge the hole of the nipple)Positioning changes such as keeping them upright for at least 30 minutes after eatingFeeding smaller amounts more frequently instead of larger, less frequent feedings

It is also often recommended that you not re-feed your baby immediately after they spit up, which can lead to overfeeding and more spitting up.

Reflux medications include acid reducers such as:

Nexium (esomeprazole) Prevacid (lansoprazole) Pepcid/Zantac (famotidine)

Your baby may not need reflux medication if they:

Are happy spittersHave good weight gainDon’t have excessive cryingDon’t have feeding or respiratory problems

Summary

If your baby spits up a lot, they may have acid reflux or GERD. If they’re gaining weight normally and don’t have other symptoms, it may not be a problem.

If they’re not gaining weight, are irritable, or have other GERD symptoms, they may need to be treated. Changing formulas can sometimes help, especially if you go to a hypoallergenic product or a formula designed for babies with reflux.

GERD is often diagnosed based on symptoms alone. Other tests may help rule out other causes of symptoms. Treatment includes simple changes to your feeding routine (such as positioning changes or feeding smaller amounts) and acid-reducing medications.