7 Signs that formula isn’t agreeing with baby

  • By: Sandra
  • Date: March 18, 2022
  • Time to read: 7 min.

Formula feeding has been the norm for decades, but there are some signs that it isn’t agreeing with your baby. In this article, we will discuss 7 signs that formula isn’t agreeing with your baby and what you can do about it. If you’ve chosen not to give breast milk or are moving on from breast feeding your baby, getting the right infant formula for them is critical.

How to know if baby formula doesn’t agree with your infant?

Generally, there are seven signs to look for which indicate that the formula you are on is not agreeing with your baby and you might need to switch to either a different brand of formula or a different type of formula.

What is formula intolerance?

Formula intolerance is a condition that affects some babies who are formula-fed. Babies with this condition have difficulty digesting certain ingredients in their formula, which can cause them to experience diarrhea, vomiting, gas, bloating and other symptoms.

If your baby is experiencing any of these signs, it’s important to talk to your doctor or health care provider. They can help you determine if your baby has formula intolerance and figure out the best way to treat it.

Excessive Babies Spit Up or Vomiting

Because of their immature digestive systems, all newborns spit-up. There’s usually nothing to worry about as long as your baby is gradually gaining weight (approximately 6 ounces per week) and wetting diapers at least once every six hours. Spitting up more than 2 teaspoons at each meal, on the other hand, might indicate a formula intolerance.

If your baby has very slow weight gain you might want to monitor their diapers, if they are not wetting at least every six hours then they might be dehydrated and you should talk to your baby’s pediatrician.

Ensure you are giving the baby the formula at the temperate he likes, some prefer hot milk, but some prefer cold milk. Check this guide to can babies can drink cold formula.

Some babies experience an allergic reaction to the protein in their formula, which can cause them to vomit. If your baby is vomiting several times a week or more than once daily, you may want to consider switching formulas.

Diarrhea or Severe Constipation or Bloody Stools

Formula-fed babies commonly experience diarrhea during the first few months of life. It’s usually nothing to worry about, but if your baby has watery stools more than three times a day for more than two weeks, you might want to consider switching formulas. Yes, your life now consists of monitoring your baby’s stools! Baby’s poop can tell us so much about how your baby’s stomach is comping with their infant formula.

It’s worth monitoring your baby’s bowel movements for signs of food allergies or to see if the baby’s digestive system can cope with the baby formula options. If your baby has accidentally drank old formula, this may cause these symptoms so check the date on your formula to make sure it is fresh!


While all babies get rashes from time to time, persistent redness or flaking in the diaper area could be a sign of sensitivities to certain ingredients.

Consider giving your baby’s bum some air time, and see if that clears up any rashes. Switching formulas can also help eliminate redness and skin irritation caused by formula sensitivity.

Changes in sleep patterns

Some babies experience changes in their sleep patterns when they’re intolerant to formula. They may start sleeping for shorter periods of time or wake up more often throughout the night.

If your baby is having trouble sleeping, try adjusting the temperature in their room, and see if that makes a difference. You might also want to consider switching formulas if sleep problems persist.

Fussiness and crying

All babies cry, but if your baby is excessively fussy or cries for long periods of time, it might be a sign that they’re not tolerating the formula. Excessive crying could be a sign of colic which may be caused by infant formulas and a sign they might need a sensitive formula.

If your baby is uncomfortable, try giving them smaller feedings more often throughout the day instead of one large feeding. You may also want to consider switching to a different formula.

Gassiness and bloating

If your baby is gassy or bloated, it’s a sign that their digestive system isn’t absorbing lactose well. Lactose intolerance causes babies to have excess gas in their bellies, which can cause them to be fussy or cry more than usual. In some cases of severe lactose intolerance, babies may also have diarrhea.

If your baby is experiencing excessive gas or bloating after their feedings, try switching formulas to find one that agrees with them better. You could also consider giving the doctor a call and asking him if he can recommend anything else you could do for this symptom.

Wheezing after eating

If your baby wheezes after eating, it could be a sign that they’re allergic to one of the ingredients in their formula. If this occurs more than once a week, you might want to consider switching formulas.

If your baby is experiencing any of these signs, it’s important to talk to your doctor or health care provider about switching the powdered formula you use.

Baby formula doesn’t always agree with babies, but if you’re giving your child the right formula for his age and weight (don’t give an older baby a younger one’s formula or vice versa), these signs may be nothing to worry about. With any symptoms of intolerance, it can never hurt to talk things over with your doctor as well.

Tell me the best formula for babies?

Deciding which formula is best for your baby can be a difficult task. Babies have different nutritional needs at various stages of their development, so it’s important to find a formula that meets their changing dietary requirements.

There are several types of baby’s formula (regardless of the multitude of brands) and your baby might have an allergy to some baby formulas but not all. So it might be worth trying a different formula type to see how they respond.

Cow’s Milk Formula

This is the most common type of formula and is made from cow’s milk. This type of formula is often recommended for babies as a starting point unless there is a history of intolerance to cow’s milk in the family.

Lactose is the principal carbohydrate in dairy products. Cow milk formula is iron-fortified, and can be helpful in preventing anemia. Some infants and children are allergic to cow milk proteins, which is why formulas are often not compatible with babies

Soy Formula

If your baby has a suspected allergy to cow’s milk, there are alternative formulas available that are soy-based or hydrolyzed. These types of formulas are designed for babies with allergies to cow’s milk proteins.

Soy formulas are not recommended for premature infants, as they may contain insufficient amounts of certain nutrients like vitamin E and essential fatty acids.

Protein Hydrolysate Infant Formula

This type of formula is made from cow’s milk that has been broken down into tiny pieces. This makes it easier for babies with allergies to digest the proteins in cow’s milk.

Although this type of formula is designed for babies with allergies, some infants who don’t have allergies also find it easier to digest than other types of formulas.

Choosing Baby Names x
Choosing Baby Names

Senstivie Formula or Hypoallergenic Formula

If your baby has a confirmed allergy to cow’s milk or soy proteins, there are hypoallergenic formulas available that are free of these allergens. These formulas are usually based on hydrolyzed proteins, which break down the allergenic proteins into smaller pieces that are less likely to cause an allergic reaction.

There are also a variety of speciality formulas available for babies with other dietary needs, like those who are vegan or diabetic. Talk to your doctor or health care provider to see if one of these formulas might be right for your baby.

So what should you do if you think that formula isn’t agreeing with baby?

If you’re concerned that your baby’s symptoms may be related to intolerance to their formula, talk to your baby’s doctor or health care provider. They can help you determine if your baby has allergy symptoms or if their underdeveloped digestive systems are struggling with standard formula.

What to note about Switching to A Sensitive Formula

There are a few things to keep in mind if you decide to switch to a sensitive formula for your baby.

First, always consult with your doctor or health care provider before making any changes to your baby’s diet. They can help you figure out which type of sensitive formula is best for your child and make sure that they’re getting the right nutrients they need.

Second, it may take a little while for your baby to adjust to the new formula. It’s important to be patient and give them time to get used to it. If their symptoms don’t improve after a few weeks, talk to your doctor again.

Finally, keep in mind that not all babies will respond to a sensitive formula. If your child is still having symptoms after switching to a hypoallergenic or sensitive formula, there may be another problem causing their discomfort. Always consult with your doctor if you’re concerned about your baby’s health.

How long does it take for a baby to adjust to a formula change?

It typically takes a few days for a baby to adjust to a new formula. If your baby isn’t tolerating its current formula, your doctor or health care provider may suggest trying a different type of formula. This can help you determine if the problem is with the specific type of formula that your baby is using or if they have an allergy to a certain ingredient.

You will know if the switch is worked if the above symptoms have gone and your baby is beginning to gain weight.

Take Away On Switching Baby’s Formula

There are a variety of formulas available for babies with allergies or specific dietary needs. If your baby isn’t tolerating their current formula, talk to your doctor about switching them over to one that better suits their needs. It may take some time for the new formula’s benefits to be felt by your little one but if they don’t respond after two weeks, it could be an indication of another problem and should not be ignored.