Newborn gas is one of the most common reasons babies fuss and cry, and the good news is that simple physical techniques can usually move it along. Babies are prone to gas because their digestive systems are brand new. After nine months developing in fluid, they have no experience with air, and their gut bacteria are still colonizing. As bacteria break down undigested milk in the intestines, gas is a natural byproduct. The problem is that young babies aren’t very good at pushing that gas out, and the unfamiliar sensation bothers them.
Why Newborns Get So Gassy
Every time your baby cries, feeds, or even breathes with their mouth open, they swallow small amounts of air. Some of that air comes back up as a burp, but the rest travels deeper into the digestive tract. Meanwhile, the normal bacteria in your baby’s gut are doing their job, fermenting leftover milk sugars and producing gas as a byproduct. Adults handle this constantly without noticing, but a newborn’s intestines are small, their abdominal muscles are weak, and they haven’t yet learned to coordinate the push needed to pass gas on their own.
This is why gas tends to peak around 4 to 6 weeks, when bacterial colonization is ramping up but the digestive system is still immature. Most babies grow out of the worst of it by 3 to 4 months as their gut matures and they develop better muscle control.
Bicycle Legs and Tummy Pressure
The fastest way to help a gassy baby is to physically move the gas through their system. Lay your baby on their back and gently move their legs in a cycling motion, as if they’re pedaling a tiny bicycle. You can also gently twist their hips and legs from side to side. Both movements apply light pressure to the intestines and help trapped bubbles work their way down and out. Many parents find this produces an almost immediate result.
Tummy time on a firm surface also helps. The gentle pressure of your baby’s own body weight against their abdomen can encourage gas to move. Even draping your baby face-down along your forearm (with their head near your elbow and your hand supporting their diaper area) puts that same kind of pressure on their belly. If your baby is fussy and squirming, a few minutes of any of these positions is often enough to bring relief.
The “I Love You” Belly Massage
A simple abdominal massage can help gas move in the right direction through your baby’s intestines. The technique follows the path of the large intestine, which runs up the right side of the belly, across the top, and down the left side.
- The “I” stroke: Using two or three fingertips with gentle pressure, trace a line straight down the left side of your baby’s belly (your right as you face them).
- The “L” stroke: Trace a line across the top of the belly from right to left, then down the left side, forming an upside-down L.
- The “U” stroke: Start at the lower right of the belly, go up, across the top, and down the left side, forming an upside-down U.
Say “I love you” as you do each stroke. Repeat the sequence several times. Use a small amount of baby-safe oil or lotion to reduce friction. The key is gentle, consistent pressure. You’re not pushing hard, just encouraging movement along the digestive path. Many babies relax visibly during this massage, and it works well combined with bicycle legs.
Burping More Often During Feeds
Most parents burp at the end of a feeding, but gassy babies benefit from more frequent pauses. Try burping halfway through a feeding session and again at the end. Babies who are especially gas-prone may need a burp after every ounce or so.
The classic position is over the shoulder: hold your baby upright with their head just above your shoulder, supporting their head, and gently pat or rub their back. You can also sit your baby upright on your lap, supporting their chin and chest with one hand while patting with the other. A third option is laying them face-down across your lap. Different positions work better for different babies, so experiment to find what gets results. If nothing comes up after a minute or two, move on. Not every feeding produces a burp, and that’s fine.
Adjusting How You Bottle-Feed
If your baby takes a bottle, the feeding technique matters more than most parents realize. Fast-flowing milk forces babies to gulp, and gulping means swallowing air. Paced bottle feeding slows things down and significantly reduces air intake.
Hold your baby in an upright position with their head and neck straight, supported by your hand. Keep the bottle mostly horizontal, tipping it just enough to fill the nipple with milk. Don’t push the nipple in. Instead, brush it gently along your baby’s lower lip and let them open wide and draw it in themselves. Pause every few minutes to let your baby rest. As the feed goes on and the milk level drops, gradually tilt the bottle more, but avoid the common habit of tilting it straight up, which floods the nipple and speeds the flow.
Check the nipple size too. If milk drips out rapidly when you turn the bottle upside down, the flow is probably too fast for a newborn. A slow-flow nipple forces your baby to work at a natural pace and swallow less air.
What About Your Diet While Breastfeeding?
If you’re breastfeeding, you’ve probably heard that certain foods in your diet, like broccoli, beans, onions, or spicy dishes, give babies gas. The evidence for this is actually very weak. There are no specific foods that have been proven to cause gas in breastfed infants, and spicy foods in particular have not been shown to cause discomfort.
Many mothers do report associations between foods like kale, spinach, beans, garlic, or peppers and their baby’s fussiness. But many other babies tolerate these foods without any issue. The one substance with real evidence behind it is cow’s milk protein. It is the most commonly reported dietary trigger for gas and fussiness in breastfed newborns. If your baby seems consistently uncomfortable and other strategies aren’t helping, a two-week trial of eliminating dairy from your diet is a reasonable step to discuss with your pediatrician. Soy protein is the second most common allergen for infants.
Formula Changes That May Help
For formula-fed babies with persistent gas, switching to a partially hydrolyzed formula is sometimes worth trying. These formulas contain cow’s milk protein that has been broken into smaller pieces, making it easier to digest. A recent randomized trial found that a partially hydrolyzed formula with added prebiotics significantly reduced crying and excessive crying over four weeks compared to standard formula, though parent-rated fussiness scores improved in both groups over time.
A formula switch isn’t always necessary, and it’s worth trying the physical techniques and feeding adjustments first. If you do switch, give it at least a week or two before judging whether it’s making a difference.
Gas Drops and Gripe Water
Simethicone drops (sold under brand names like Mylicon and Little Remedies) are the most commonly purchased over-the-counter option. They work by combining small gas bubbles into larger ones that are theoretically easier to pass. However, the clinical evidence is not encouraging. A systematic review in BMJ Open found moderate to low quality evidence showing no benefit from simethicone for infant gas and colic. Multiple reviews reached the same conclusion, and several clinical guidelines now recommend against it, favoring physical contact and continued breastfeeding instead. The drops are generally considered safe, but they’re unlikely to do much.
Gripe water has even less support. It typically contains fennel, ginger, sodium bicarbonate, and various flavorings, but it is not regulated by the FDA, and no scientific evidence confirms it is safe or effective. Because herbal remedies don’t undergo the same manufacturing oversight as food or medicine, quality varies widely between brands. Multiple gripe water products have been recalled over the years for contamination. One recall followed a parasitic infection in a 6-week-old. Another involved an undissolved ingredient that posed a choking hazard. In a third case, bacterial contamination caused septic shock in a 9-month-old.
Signs That Something More Is Going On
Normal newborn gas causes fussiness and crying but resolves with the techniques above or on its own. Certain symptoms, however, signal something more serious. Seek emergency care if your baby (under 3 months) has a fever of 100.4°F or higher, bright green vomit, blood in their stool or vomit, or a hard and distended belly with inconsolable crying. Extreme sleepiness where your baby is difficult to wake, labored breathing with grunting or nostril flaring, and signs of dehydration (no wet diaper for six or more hours, a sunken soft spot on the head) also require immediate attention.
If your baby is gaining weight normally, having regular wet and dirty diapers, and the fussiness comes and goes rather than being constant and escalating, you’re almost certainly dealing with ordinary newborn gas. It’s uncomfortable for everyone involved, but it’s temporary.