Best Formula for Sensitive Tummies – Easy-to-Digest Options

Baby Gear

Best formula for sensitive tummies

Want to hear about the best discounts on baby products, toys, craft materials and all things kid-related? Join our Facebook group for promo codes and secret sales!

What you feed your baby is arguably one of the most important decisions you'll make.

If you’ve chosen to formula feed, you’re likely overwhelmed by the options you have to choose from. With each product promising to provide the best nutrients and vitamins for your baby, new and experienced mothers alike are left wondering which brand is really best.

Why you should take this decision seriously

Though it might feel as if all baby formulas are the same, your baby may not react to all of the formulas the same.  With various types of formulas each containing their own combination of ingredients, some may not agree with your baby’s digestive system.

When it comes to formula, some babies require a special kind due to food allergies or sensitivities, and many babies have sensitive stomachs that demand special care. Selecting the wrong formula for your baby could directly result in anything from an upset tummy and diarrhea to vomiting and other allergic reactions.

In order to minimize troublesome stomach symptoms, parents should take advantage of special formulas.

Signs your baby has formula sensitivities

How do you know if your baby is suffering from formula sensitivities or allergies?

Though each child may have a different reaction that ranges from mild to severe, parents should pay attention to signs such as these listed below:

  • Dry and itchy patches of skin
  • Hives
  • Swollen mouth or lips
  • Diaper rash that won’t go away
  • Extremely fussy after eating or struggling to pass gas
  • Uncontrollable crying
  • Extreme diarrhea
  • Blood in stool
  • Difficulty gaining weight
  • Trouble swallowing
  • Vomiting
  • Wheezing
  • List Element

If you notice these symptoms in your baby after feedings, it’s possible that they have had an allergic reaction to the formula and/or they have sensitivity. If they’re experiencing extreme reactions like swollen a mouth or lips, extreme diarrhea, or vomiting, immediately contact your child’s pediatrician.

Tips on switching baby formulas

Switching formulas is the most effective solution to prevent your baby from getting sick. This should not be done without first talking with a doctor. Depending on the severity of the allergic reaction or sensitivity, a pediatrician will determine whether the switch should happen gradually or immediately.

For parents of children with severe allergic reactions to baby formula, you’ll need to switch them right away. Determine which formula is best based on the type of allergy or sensitivity your child has. Give baby a bottle and pay attention to how he reacts. If you don’t notice any of the above-mentioned signs of an allergic reaction or sensitivity, you can continue feeding baby the new formula.

For parents who have decided to gradually switch their baby’s formula, start by giving the baby one-part new formula to three-parts old formula. After a day or so, if you don’t notice any additional reactions to the new formula, you can increase it to two-parts old formula and two-parts new formula. Continue this pattern until the baby is drinking nothing but the new formula.

If you notice changes in your baby’s health as you’re switching formulas, do not try another formula without first talking with a pediatrician. Mixing too many different formulas can make it more difficult for doctors to determine what ingredient your baby may be most sensitive or allergic to.

Choosing a special formula for your baby

After speaking with a pediatrician, if it is determined that your baby is allergic or sensitive to ingredients in the formula, they will likely recommend that you use a special formula for certain allergies or sensitivities.

The best formula for sensitive tummies benefits your baby as it can make him less irritable, prevent him from becoming constipated and uncomfortable, and improve his digestion overall.

The best formula for sensitive tummies benefits your baby as it can make him less irritable, prevent him from becoming constipated and uncomfortable, and improve his digestion overall.

When you’re buying formula for any baby, you should consider the following factors:

  • Medium - Should you use powder, liquid concentrate, or ready-to-use formula?
  • Vitamins - Does the formula contain iron, vitamin D, and other beneficial vitamins that your baby needs to be healthy? Does it contain DHA?
  • Ingredients - What ingredients make up your formula choice? What types of oils and probiotics does it contain?

When you’re buying formula for a baby with a sensitive stomach, you may want to consider additional factors, such as the below:

  • Organics - Is the formula FDA organic certified and does it contain GMOs?
  • Treatment - What symptoms is the formula proven to relieve?
  • Ingredients base - Do you need a milk-based formula or something soy-based and lactose free?

Read on to learn more about a range of formulas designed specifically for babies with stomach sensitivities to find the right one for your little one.

Quick comparison:
Formulas for sensitive tummies


Features we love


Buy it now

Enfamil ProSobee
Baby Formula

- Reduces fussiness and gas
- Milk-, dairy- and lactose-free
- Very easy going on the tummy
- Made with plant-sourced soy protein

Earth's Best Organic Sensitivity Infant
Formula with Iron

- Contains DHA and ARA
- Very gently on the tummy
and easy to digest
- Contains lutein and prebiotics
- USDA organic certified

Similac Sensitive Infant Formula with Iron

- Very easy to digest
- Contains important ingredients found in breastmilk
- Perfect for fussy babies with gas 
- Milk-based formula

Gerber Good Start Soy Non-GMO Powder
Infant Formula

- Milk- and lactose-free
for easy digestion
- No GMOs
- Leading, trustworthy brand
- Contains DHA

Enfamil Gentlease Non GMO Baby Formula

- Promises to ease gas, crying and fussiness in 24 hours
- Great for your baby's brain
- No GMOs

- Easy to digest​

Keep reading for our full reviews!

Enfamil ProSobee Baby Formula

This is a soy-based infant formula that will reduce the fussiness and gas that milk-based formulas cause in babies with sensitive tummies. Milk, dairy, and lactose-free, this plant-based soy milk is natural, and you will feel confident feeding it to your baby.

Each serving of this formula contains 105 mg of calcium, 1.8 mg of iron, and 24 mg of choline (a chemical that plays a key role in brain development).

This is the ideal choice for a baby that is having an adverse reaction to a cow-based formulas or even for a family that is looking for their baby to follow a more plant-based diet.

Designed for babies of up to 12 months, Enfamil has ensured this formula will adequately support your baby’s physical and neurological health with its key nutrients, supporting cognitive, motor, social, and communication skill development. This selection comes in powder form.


  • Dairy and lactose free
  • Contains key nutrients to support baby's health
  • Plant based for sensitive tummies; vegan and kosher compliant
  • Easily mixes with baby cereal


  • Mix may be clumpier than standard formula

Why this formula is awesome

We love that this is a formula that is bound to make a difference for babies prone to tummy problems. This choice is known to help profoundly when it comes to constipation, bloody stool, or gas issues. As far as formulas for sensitive babies go, this one has it all - key nutrients and a plant-based recipe that your baby is sure to love and that makes digestion easier from start to finish.

Keep in mind, however, that some infants who are unable to process the protein in milk also have difficulties digesting soy products. Feeding your infant a soy based formula has potential side effects that include constipation, nausea, gas, and bloating.

Earth's Best Organic Sensitivity Infant Formula with Iron

Perfect for babies up to a year old, this is a low lactose formula that is easy for little ones to digest. This is a whey-dominant formula that contains a blend of carbohydrates that is particularly gentle on an infant’s tummy.

Earth’s Best specifically designed this formula to have a DHA and ARA makeup that mimics that found in breast milk, which support baby’s brain and eye development. The prebiotics also do their part to increase your baby’s immunity.

This formula is USDA organic certified and it notably contains no artificial flavors, colors, preservatives, GEI, growth hormones, antibiotics, steroids, or pesticides that could be harmful to your baby.

It is also iron-fortified, milk-based, and is powder-based.

This sensitive baby formula is proven to not only decrease stomach problems, but it also can reduce other symptoms caused by food sensitivities, such as skin rashes or eczema.


  • Easy to prepare
  • FDA certified organic
  • Kosher compliant
  • GMO free


  • Powder may have off-putting smell
  • Contains corn syrup

Why this formula is awesome

While this formula has an array of benefits for your infant, we love that this is backed by a reputable and reliable brand. This may be the best formula for sensitive tummies, as your baby can grow up on this company’s products, even after he outgrows the need for formula. From baby food to cereal to yogurt, all of their products are FDA organic certified and don’t contain harmful substances. Talk about a brand you can get behind!

Similac Sensitive Infant Formula with Iron

Similac has zeroed in on a solution to digestion issues with this product, as it’s a great milk-based formula for sensitive stomachs.

This option features OptiGrow, which is an exclusive blend of DHA, lutein, and vitamin E - all of which are ingredients found in breast milk. This unique ratio is ideal in supporting baby’s eye health, brain development, and growth overall, giving her the nutrition she needs to be healthy and happy, all while remaining free of stomach irritation and issues.

A powder option, this formula stays good up to 48-hours after being prepared as long as it’s kept refrigerated. Even for babies with lactose sensitivity, the make-up of this formula makes it easy for infants to digest without gas or fuss.


  • Nutrient-rich composition supports brain and physical development
  • Mixes easily
  • Contains key vitamins such as iron
  • Non-GMO


  • Not for infants or children with galactosemia
  • Powder has foul smell

Why this formula is awesome

This formula contains Human Milk Oligosaccharide, a substance previously only found in breast milk that supports the healthy development of your child’s immune system. That makes this a highly innovative choice that is accompanied by a long list of nutrients, vitamins, and benefits to your baby’s health. Backed by Similac’s extensive research, it's important to the company that your baby grows up to be a healthy, happy, and fully-developed child. It can be tough to find a formula for sensitive babies that has it all, but this one certainly does!

Gerber Good Start Soy Non-GMO Powder Infant Formula

If you’re looking for the best formula for sensitive tummies, this may be just the ticket!

Lactose free, this formula is made with soy proteins that are easy on little ones with sensitive stomachs or who are lactose intolerant.

This option also contains expert-recommended DHA for brain and eye development, is non-GMO, and is made with vegetable oils and linoleic acids. It is complete with key vitamins such as iron, calcium, zinc, and choline.

This is a great nutrition choice for babies that have a sensitivity towards cow-based milk, as its lactose-free and soy-based recipe is meant to reduce gas and constipation. It comes as a powder and is easy to prepare. This is meant to be used for children up to a year old.


  • Non-GMO
  • Easy to prepare
  • Not prone to clumping


  • Cannot be warmed in microwave
  • May leave greasy residue on bottles

Why this formula is awesome

Because this is a Gerber product, as a customer, you are guaranteed to get a high-level of service. Whether you have a question about the formula itself or the best way to prepare it and administer it to your baby, their experts are available 24/7 to answer your questions. They also offer complimentary lactation and nutrition consultations. Paired with the nutrient-rich and tummy-friendly formula they produce, this is quite the perk!

Enfamil Gentlease Non GMO Baby Formula

Enfamil has produced a great product for babies with stomach sensitivities in this formula.

This is a milk-based and non-GMO option that contains partially broken down proteins, making it easy for baby to digest. The makers kept your baby’s health in mind, ensuring the formula contains nutrients like iron, choline, vitamin A, vitamin D, and DHA.

This formula starts to relieve your baby’s digestion issues fast, as quickly as in the first 24 hours of use.

It’s a great option for a baby that may not have a lactose sensitivity but is experiencing gas, constipation, or stomach irritability from regular formulas. This is a powder formula.


  • Non-GMO
  • Proven to be gentle on baby's tummy
  • Protein makeup is easy to digest


  • May be clumpy when mixing

Why this formula is awesome

What makes this formula stand out from the rest is that it is proven to begin alleviating your baby’s digestion issues and symptoms immediately. Within 24-hours of use, your baby will begin to be less fussy, as the physical makeup starts to increase their tummy comfort from the first sip. Research backed, this is a huge plus as we know you want your baby to feel better as soon as possible.

Finding the best formula for sensitive tummies can be a challenge, first because there are so many options, and second because it's such an important decision to make. Hopefully this list has made your choice more clear and will enable you to pick a product that allows for your baby's easy digestion and healthy development.

We understand that your baby’s well-being is the most vital thing, and that food is large part of their health. Choosing a formula that has it all—nutrients, vitamins, wholesome ingredients—that is easy to prepare and that easily agrees with your baby’s body is a must.

These reviews should help accommodate your need to know all of the facts and keep your baby well.

If you believe your baby is suffering from sensitivities or allergies to formula, consult with a pediatrician for an actual diagnosis and formula recommendations.

Reading ingredients, the pros and cons of each formula, and possible side effects are equally important to ensuring that you choose a baby formula that will provide your baby with the nourishment it needs to grow healthy and strong.

FUN, delivered straight to your inbox.

Subscribe to the Tiny Fry newsletter and get awesome ideas for spending QT with the little people who make your world go round.