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Is It Ok To Mix Formulas?

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ok to mix formulas

by Kelly

I give my baby Similac but the day care gives him Good Start. Is it ok to mix formulas like this or will it hurt my baby’s tummy? I am worried that he will get tummy pain or not get the nutrition right if the formulas are mixed. Is it a problem?
Baby Help Line:

What Formulas Can Be Mixed And Not

Practically all formulas sold today are good for your baby and contains the nutrition he or she needs. This, however does not mean that mixing them without some extra thougths will be OK. There is clear difference between mixing brands and mixing types of formula.

Mixing formula brands, but for similar types of formula, is not likely to be a problem as long as your baby accepts both brands – not to be taken for granted!

On the other hand, mixing formula types, can be a greater challenge. As you may know, there are many different kinds of formula, from the ordinary milk based formula, to very specialised ones, such as hydrolysate formula and soy milk formula.

Many babies can in theory digest and thrive on all these different types, but since their digestive systems are immature during the first few months, staying with a type that works well is a reasonable choice. Also, many babies will object to the new taste of a different type of formula.. Actually even switching to another brand, but the same type, can make your baby protest (OR will make your baby finally accepting formula, if that’s a problem).

If your baby has tummy issues, such as a lot of gas, constipation or even infant colic, then switching to a differnt kind of formula (for example lactose free) can make a world of difference. In such case, do not switch between different kinds once you have found one that works. It is even worth bringing your own formula brand and type to day care, to make sure your baby gets what actually works.

For babies with cow’s milk allergy or lactose intolerance, the type of formula should not be switched, obviously.

So in conclusion, yes, you can mix formula brands without harming your baby as long as you do not notice feeding or pooping issues from the mix. Just make sure you know what type of formula you are feeding your baby, and stay with a type that works for your child.

Find more discussions related to bottle-feeding here.

Hope this helps,


Find comments below.



Dec 06, 2012 It is okay
by: Rose

It is okay, but your baby may develop a taste for a certain formula, what is the reason behind the day care giving a different kind of formula. Just make sure that if your child does have a sensitive stomach that the formula that they are giving him at day care is not causing him any discomfort.

Dec 10, 2012 You can, but….
by: Anonymous

You can mix baby formulas, but many babies are not very tolerant of it and develop upset stomachs. A better idea would be to send your regular formula along with your child to daycare!

Dec 10, 2012 not recommended
by: Anonymous

It is NOT recommended to switch formulas like that. Constantly switching can increase the risk of childhood allergies, also can cause constipation in your little one. Why not pack formula for your baby to take to daycare?

Aug 29, 2013 Formula Usage
by: Anonymous

My son is 11 months old and we have some formulas that were sent to us other than his Similac Advance….Good Start Surpreme with Iron. Would it be ok to use that to save a little money for the next couple of weeks?

Sep 28, 2013 Mixing baby formulas
by: Anonymous

Unintentionally I found myself mixing baby formulas together. I’m not sure if it is harming my baby or not! I first (when he was a newborn) started with Nestlé which was quite expensive, but I kept using it until he reached his third month, then I switched to a cheaper brand from Milupa which was still expensive, then I changed to a third kind which is also very good (Hipp) yet with a relatively reasonable price!

Now my child is 4 months old. Today, I received a present a bag full of Nestlé “Beba”, Milupa and Adapta. I’m planning to feed him on them. Is it ok? I started today, after his last meal he cried a bit but otherwise he was playing. I know it might sound crazy.. Yet any advice?

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