Baby Drank Old Formula
Baby Toddler Safety

Baby Drank Old Formula

Taking care of a newborn can be exhausting, and when you’re tired, you’re more likely to make mistakes!

You may be concerned about what will happen if you mistakenly feed your infant their old bottle instead of the new one next to it in the middle of the night.

What would happen if your baby drank old formula? Continue reading to learn more!

Baby Drank Old Formula

Although drinking outdated formula by accident can raise the risk of food-borne illness, it is uncommon for babies to fall unwell.

If your child has severe vomiting, diarrhea, or fever, she should go to the doctor right away. 

Formula powder that has expired is less nutritious, and you should change it, but it is not spoilt unless it is visibly discolored or smells wrong.

It isn’t easy to track what’s safe to feed your infant and what isn’t.

While it may be easy to panic after discovering your kid has consumed an old bottle of formula, try not to panic!

While an outdated or incorrectly prepared bottle of formula can put your child at risk of food-borne illness, this does not mean that your child will become ill.

Consider this: you increase your chance of food poisoning every time you sneak a piece of raw cookie dough into your mouth, but you don’t get sick every time a piece of raw egg enters your mouth.

While there’s a slight chance that your baby will become sick from the outdated or expired formula, it’s still crucial to avoid giving your child questionable baby formula.

That’s because if your infant gets food poisoning, it might be considerably more severe than it would be in an adult.

1. Diarrhea & Vomiting

When a baby drinks old formula, one of the most common adverse effects is vomiting. Don’t panic if your infant throws up.

Your baby’s stomach refused to take the rotten food. Therefore it passed through him. Most babies vomit once or twice before recovering.

The vomit may persist in rare cases, resulting in a fever. 

This is the time to seek medical care as soon as possible. Diarrhea is another typical symptom that can show whether your kid has taken outdated formula.

Your kid will appear weary and dehydrated if he has dysentery or diarrhea. To make him feel better, make sure you give him water at regular intervals.

2. What Happens If The Baby Drinks Formula That Has Expired?

You may have mixed up a bottle of formula for your child, given it to them, and then discovered that the formula had expired.

Your kid is unlikely to become ill from old formula, especially if it is supercharged. 

The major worry here is that expired formula may not have the same nutrients and vitamins as fresh formula, and your baby would not have gained these nutrients from their feed.

This is because, beyond the use-by date, the nutrients break down and disappear, and the formula will no longer be as valuable to your baby’s health. 

If the formula has expired and been exposed to bacteria, there is a higher chance of sickness.

Mold development is possible, and this might make your infant very sick.

It’s best to keep a note of the best by or use-by date on the formula tin and double-check the formula each time before using it.

Read a related post: How Much Is A Scoop Of Formula

3. What Should You Do If Your Baby Is Drinking Old Formula?

If your baby consumes outdated formula, monitor them to see if they develop any new symptoms.

Examine them for signs of illness, such as vomiting, diarrhea, or a fever. If any of these symptoms appear, call your doctor right once for treatment. 

Aside from that, try to give them modest amounts of liquid every half hour to avoid dehydration, which is the most severe worry with food-borne infections.

If they have had expired formula, they may need a top-up of formula sooner than usual, as it will not be as nutritious as when it was new. 

If you have given them expired formula, they may require a top-up of formula sooner than usual, as the formula will no longer be as nutritious as it was first given to them.


If your baby drank old formula, nothing would happen most of the time, but there is a higher chance of food-borne infections, which can cause vomiting, diarrhea, and, in severe cases, dehydration.

However, this is uncommon, and most of the time, the formula will be less nutritious than when it was produced fresh.

Frequently Asked Questions (FAQs)

Is it possible for a baby to get sick from drinking outdated formula?

Corynebacteria can survive in arid environments. Powdered baby formula, powdered milk, and herbal teas are common sources of bacteria.

Corynebacterial infections are uncommon, yet they can be fatal in infants as young as days or weeks old.

What happens if you leave the formula out for too long?

In a made-up formula, harmful germs can multiply swiftly. Even if the formula is kept in the refrigerator, germs can survive and reproduce, though slower.

The longer the formula is kept out of the fridge, the higher the danger of illness.

What if the baby drinks from a soiled bottle?

Bacteria. Unsanitized baby bottles can also be a breeding ground for dangerous bacteria, which will eventually make their way into your baby’s mouth if you simply clean them by rinsing them.

These germs can make your baby sick, causing things like food poisoning and vomiting.




Need a bit of help getting rid of that stubborn weight?

The MUTU System is an proven online fitness program for pregnancy and every step of motherhood aimed at Pre and Postnatal Care.

The MUTU System is Medically proven to prevent and heal all types of moms who want to give their bodies a push.

(In fact, Kate Middleton, the Duchess of Cambridge, has been reported to use the MUTU System to regain her body size after giving birth)

Take matters into your own hands for faster results. Discover More Here

Iesha Mulla

Iesha is a loving mother of 2 beautiful children. She's an active parent who enjoys indoor and outdoor adventures with her family. Her mission is to share practical and realistic parenting advice to help the parenting community becoming stronger.

You may also like...

Leave a Reply

Your email address will not be published. Required fields are marked *