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11 Sneaky Little Baby Formula Allergy Symptoms to Watch For

Do you know these formula allergy symptoms? - MightyMoms.club

Have you every wondered if the reason your baby was SO CRANKY was because of a baby formula allergy?

Be honest, it would be nice to have a cause behind all the crankiness. What if his fussiness could be fixed with a simple formula switch.

Wouldn’t it be loverly if he could just TELL you he’s allergic? If he could raise his little chin, look straight into your caring eyes and say in a sweet little British accent…

Mumsie dearest, Every time you make me drink that white stuff, I feel like ants are crawling all over my body and I want to vomit my insides all over your blouse.

Unfortunately, it’s not that easy. He can’t tell you what he’s feeling, so we have to figure it out on our own.

I have three goals for this article. I’ve listed them. (Listing things makes me happy.)

  1. To help you understand the differences between a milk allergy and lactose intolerance.
  2. Share the symptoms of each so you can impress your doctor and help your infant.
  3. Point you in the direction of a few good formulas you should start experimenting with.

What about soy? Babies with a milk allergy are usually allergic to soy as well.  Still, if you want to give soy a try, check out What You Need to Know Before Giving Your Baby Soy Formula.

Your Baby is Not Lactose Intolerant (Probably)

When it comes to a baby formula allergy, most parents jump to the assumption that their baby is lactose intolerant.


It’s very rare for a baby to be lactose intolerant. Lactose intolerance is not the same as a milk allergy. 

A milk allergy is an immune response. The body thinks it sees an “invader” and attacks it.

In lactose intolerance, the body simply cannot absorb the sugar, and so rejects it.   (It’s a subtle, yet important, distinction.)

There are only a handful of conditions that would set up a baby to be lactose intolerant.

  • The infant was born prematurely and hasn’t yet developed the lactase enzyme he needs (but will given enough time).
  • One or both of the parents are lactose intolerant. (It’s a genetic condition.)
  • The baby had severe diarrhea, which lowered her body’s ability to make lactase for a week or two.
  • The infant is on certain medications (talk to your pediatrician).
  • The baby was diagnosed with a digestive disorder like celiac disease or Crohn’s disease.  (Do those run in the family? Talk to your doctor.)

5 Baby Formula Allergy Symptoms
that Need a Sensitive Formula

There are 11 symptoms of a baby formula allergy you can keep an eye out for.  The first 5 are signs of a slight formula allergy, and can usually be overcome by choosing a more “sensitive” baby formula.  The last 6 are indicators that your infant has a more serious formula allergy problem. 

  1. Dry, itchy, flaky patches of skin (eczema) often behind the knees or in the crooks of elbows.
  2. Hives (red blotchy spots)
  3. Swollen lips or mouth (call 911 if you see troubled breathing)
  4. A red ring around the anus that doesn’t seem to respond to diaper rash remedies
  5. Straining to pass gas, very fussy and irritable after eating.

If your baby has any of these symptoms, try switching to one of these more sensitive formulas.

Kabrita Goat’s Milk Formula

My favorite solution for a milk sensitivity (or allergy) is to avoid the main culprit, cow’s milk, and try something with a totally different structure: a formula based on goat’s milk. (Which means Kabrita, because they’re the only current source of goat’s milk formula.)

Goat’s milk been shown to be easier on tiny tummies to digest, being more like breastmilk in that arena. And although I don’t recommend giving your baby straight up goat’s milk (the protein component can be hard on tiny kidneys), a formula based on goat’s milk is a smart place to start.

You can only get it by ordering directly from their website. Click here to get a free sample of Kabrita’s goat’s milk formula and try before you buy!

You may notice it says “Toddlers Formula”. This is a labeling thing with the FDA. I confirmed with them personally that this formula is fine for babies as young as 6 months who have started solid foods.

Similac Pro Sensitive

Similac Pro Sensitive is also similar to the Similac standard formula, Advance.  The only difference is that this formula breaks those proteins down a little to help keep small tummies from overworking. It is currently the only baby formula on that market that has HMO’s, a very special protein found in breastmilk to boost immunity. You can learn more about this revolutionary ingredient in this article here. 

Enfamil Gentlease

Enfamil Gentlease is a specially formulated…um…formula is based on cow’s milk, but the proteins are already partially broken down, making it easier for your baby to digest without getting all gassy and uncomfortable.  It has only 20% of the usual amount of lactose. It has all the same nutritional gains of the regular Enfamil brands: DHA, ARA, prebiotics, and other immune-boosting goodies.  You can find it in powder form, in premixed and ready-to-attach-a-nipple bottles, and in cans.

Good Start Soothe

Good Start Soothe uses the probiotic L. Reuteri. In studies, this particular probiotic was shown to reduce crying time by 50% in colicky babies. As if that probiotic wasn’t enough to leave you flirting and batting your eye-lashes, it also uses a special carbohydrate blend to ease fussiness and gas, that’s only 30% lactose. Since it’s made with 100% whey, it slips through the digestive system a lot easier than many other regular formulas.

Parent’s Choice Formulas

Parent’s Choice is the formula-of-choice for Walmart and Sam’s Club. In Parent’s Choice Sensitivity, the proteins are partially broken down, making it have 75% less lactose than the standard formula.  (If you suspect lactose intolerance, this is what I’d choose.)

Save Money: Buy Sensitive Baby Formula Allergy Formulas in Bulk!

Once you’ve identified the formula that is working well with your baby, I would encourage you to purchase your formula in bulk and use Subscribe and Save on Amazon to save even more per-cannister.  Subscribe & Save gives you free shipping and discounts on a wide variety of grocery items. (Plus it’s nice to not run out of formula at two in the morning…)

6 Baby Formula Allergy Symptoms
Requiring a Hypoallergenic Formula

Here are symptoms of a more serious baby formula allergy.  Always discuss  this switch with your doctor, as several of these symptoms could also be indicators of other things.  (Plus, the hypoallergenics are pretty gosh darn expensive.)

  1. uncontrollable crying (for hours)
  2. severe diarrhea (average of 2-4 times a day – call your doctor to prevent dehydration, which is extremely dangerous!)
  3. bloody stools
  4. a failure to thrive, not gaining weight (should double birth weight by 6 months)
  5. excessive spitting up and difficulty swallowing (you should also consider these formulas designed for acid reflux)
  6. wheezing (with ear to chest, can hear a rattling sound when breathing – if you hear this, call your doctor right away.)

Again, if you’re picking up on these baby formula allergy symptoms, give your doctor a call and consider trying one of these hypoallergenic (lactose-free) baby formulas.

There are two kinds of hypoallergenic formulas: hypoallergenic formula and hyper-hypoallergenic formulas.  You can learn more about that distinction here. In this article, I’m going to just highlight the basic hypoallergenic formulas.

Nutramigen with Enflora LGG

Nutramigen is in the Enfamil family of formulas.  It’s based on dairy milk, but the particles are so teeny tiny that the body ignores them. (It’s lactose-free.) Enfamil likes to brag that it can bring colic symptoms under control under 48 hours.  I’ll let you be the judge on that one. (But do tell in the comments!)

The “Enflora LGG” refers to a probiotic that will help keep the lining of the intestines healthy.  It has also been shown to help infants who struggle with allergic rashes and eczema. (Although if that’s your main issue, you may want to try a free sample of goat milk formula. It’s a lot cheaper.)

Alimentium Expert Care

In Alimentum Expert Care, the dairy-protein particles are so teeny-tiny that most babies ignore them, which is why it’s so effective with allergy-suffering babies.Infants who struggle with colic or have severe skin rashes due to a protein sensitivity may find final relief with this allergy.  You can find it in the powder or premixed form.

 Extensive HA

Extensive HA is a hypoallergenic formula made by Gerber.  Babies with a cow’s milk protein allergy have decreased levels of bifidobacteria in their gut, so this formula also includes the probiotic L. Reuteri, to help settle upset tiny tummies.


Pregestimil is the second hypoallergenic formula made by Enfamil.  55% of its fat content comes from a special blend of fats (called MCT), specifically designed to help colicky and reflux babies who have trouble digesting fats. You’ll want to check with your doctor before you use this formula.

The Proof is in the Pudding Lack of Fussing

Hopefully, you’ve got a game plan now. You’ve gone through the list of baby formula allergy symptoms and have a formula to start testing out.

What’s next?

Firstly, if you think your baby needs a hypoallergenic formula go ahead and make a phone call to your Pediatrician. She’ll want to know your thoughts and may even have a free sample for you to try out!

If you’re in the first camp, pick out the sensitive baby formula you want to start with and begin to transition your baby slowly over to the new formula.

  1. First Day: 75% old formula, 25% new formula
  2. Second Day: 50% old formula, 50% new formula
  3. Third Day: 75% new formula, 25% old formula
  4. Fourth Day: 100% new formula

Going slow can help prevent extra gas bubbles and give your baby’s digestive system a chance to adjust.  Once you’ve moved over 100% to the new formula, go through the baby formula allergy symptoms listed above again. Are they improving? If so, happy dance! If not, give your doctor another call and perhaps start treating each symptom (like eczema) separately.

The important thing is to keep moving! Keep working to find answers. You will find them eventually! (That’s the good thing about time. It’s a great healer!)

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