Several fruits, vegetables, and whole grains can help get things moving when your baby is backed up. The most effective options contain fiber, a natural sugar alcohol called sorbitol, or both. Before diving into specific foods, it helps to know whether your baby is actually constipated, since normal pooping patterns vary a lot in the first year.
Is Your Baby Actually Constipated?
What counts as “normal” depends on how your baby is fed. Formula-fed babies typically have at least one bowel movement most days, though going one to two days between poops can be fine. Breastfed babies are trickier: in the first month, pooping less than once a day may mean they’re not eating enough, but after that initial stretch, breastfed infants can go several days or even a full week between bowel movements. Their bodies sometimes use nearly every drop of breast milk for growth rather than waste.
Constipation isn’t really about frequency alone. The bigger signals are hard, pellet-like stools, straining for more than 10 minutes without producing anything, blood on the surface of hard stools, unusual fussiness, or spitting up more than normal. A dramatic change from your baby’s usual pattern matters more than hitting some specific number of dirty diapers per day.
The “P” Fruits: Your Best First Options
Prunes, pears, peaches, and plums are the go-to foods for baby constipation, and there’s a simple reason: they’re loaded with sorbitol. Sorbitol is a sugar alcohol that the gut absorbs slowly. The unabsorbed portion pulls water into the intestines, softening stool and making it easier to pass.
Prunes are the heavyweight here, containing roughly 11 grams of sorbitol per 100 grams. Fresh pears come in at about 3 grams per 100 grams, plums at about 2 grams, and peaches at around 1 gram. Dried versions concentrate the sorbitol significantly: dried pears jump to 9 grams and dried plums to 8 grams per 100 grams. For babies eating purees, cooked and mashed prunes or pears are a great starting point. Even a few spoonfuls can make a noticeable difference.
Apples are a bit of a wild card. Fresh apples contain about 1.5 grams of sorbitol per 100 grams, which can help. But applesauce, especially the processed kind, sometimes has less fiber and sorbitol and may not do much. If you’re using apple for constipation, opt for homemade puree with the skin blended in when your baby is old enough to handle it.
Fruit Juice as a Quick Fix
For babies over one month old who aren’t yet eating solids, a small amount of fruit juice is one of the few dietary tools available. The general guideline is 1 ounce per month of age per day, up to a maximum of 4 ounces. Pear and apple juice work well for younger babies. After three months, prune juice becomes an option too.
This is specifically for treating constipation, not an everyday drink. The sorbitol in these juices is what does the work. Give it in small amounts between feedings. If your baby is already eating solids (around six months and older), whole fruit purees are a better choice because they provide fiber along with the sorbitol.
Vegetables That Help
Once your baby is eating solids, certain vegetables add fiber that keeps stool soft and bulky. Peas, sweet potatoes, and carrots are among the best options. They puree easily, taste mild enough that most babies accept them, and provide meaningful fiber per serving. A few tablespoons of pea puree, for example, can deliver 2 to 3 grams of fiber.
Broccoli and green beans are also solid choices as your baby gets comfortable with different textures. You can mix vegetable purees with fruit purees if your baby resists them on their own. Sweet potato blended with pear, for instance, is a combination that works both for taste and for digestion.
Whole Grains Over Rice Cereal
If your baby is eating infant cereal, the type of grain matters. Rice cereal is low in fiber and a common contributor to constipation, especially when it’s a baby’s primary solid food. Switching to oat-based or barley-based infant cereal can help. Look for options where whole oats, whole barley, or bran is listed as the first ingredient.
As your baby progresses to more textured foods, small pieces of whole grain bread, cooked quinoa, or oatmeal all contribute fiber. These work best when paired with the high-sorbitol fruits mentioned above, giving your baby both the water-pulling effect of sorbitol and the bulk-forming effect of fiber.
Yogurt and Fermented Foods
Plain whole-milk yogurt (typically introduced around six months, with your pediatrician’s guidance) adds beneficial bacteria to your baby’s gut. These bacteria help maintain the balance of microbes in the digestive tract, which plays a role in how efficiently food moves through. Kefir is another option with similar benefits and a thinner texture that some babies prefer.
Fermented foods work differently from fiber and sorbitol. They don’t act as an immediate fix the way prune puree does, but they support overall digestive regularity over time.
Water Makes Fiber Work
Fiber needs water to do its job. Without enough fluid, adding fiber-rich foods can actually make constipation worse by creating dry, bulky stool that’s harder to pass. For babies between 6 and 12 months old, the CDC recommends 4 to 8 ounces of water per day alongside their usual breast milk or formula. You don’t need to push large amounts. Small sips throughout the day, offered in a cup during meals, are enough to keep things moving.
Babies under six months who aren’t on solids yet generally get all the fluid they need from breast milk or formula. The juice approach mentioned earlier provides the extra liquid in those cases.
Putting It Together
For a baby just starting solids, the simplest approach is to make prunes, pears, or peas a regular part of the rotation rather than relying on low-fiber standbys like bananas and rice cereal. If your baby is already constipated, try offering prune or pear puree once or twice a day and see if things improve within a day or two. Swap rice cereal for oat cereal. Offer small sips of water with meals.
A rough daily menu for a constipated 7- or 8-month-old might look like oat cereal with mashed pear at breakfast, sweet potato and pea puree at lunch, and a small serving of prune puree in the afternoon. That combination covers sorbitol, fiber from multiple sources, and enough variety to keep meals interesting. Most babies respond to these changes within two to three days. If constipation persists beyond a week despite dietary adjustments, or if you notice blood in the stool or your baby seems to be in real pain, that’s worth a call to your pediatrician.