Arrow backLanguage
0-6 Months
Add this post to favorites

Switching Formulas

Your baby’s growing (so fast!) and his digestive system is developing, too.

2 mins to read Jul 31, 2017

As a result, you may be thinking about changing his formula, or perhaps digestive issues like fussiness, gas and spitting up triggered the thought. No matter what, it’s best to speak with your doctor before switching your baby’s formula, while keeping these next few pointers in mind:

  • Don’t worry about alternating or combining the new formula with the formula you’ve been using:  Baby’s transition to the new formula can happen right away.
  • Avoid mixing different formulas! Here’s why it’s not recommended: Formulas aren’t meant to be combined. Plus, if your baby experiences digestive issues, you won’t be able to identify the cause.
  • Give your baby 3 to 5 days to get used to the new formula: It may take him some time to adapt. (Though he may even adjust right away. Yay!) While you’re transitioning, your baby may go through some other slight changes—mainly to his stool pattern, gas and how often he spits up. Don’t worry, though, this is normal!


Remember, you should consult with your baby's doctor before switching formulas, so you can always raise any other questions or concerns at that time.

Why choose Nestlé® Good Start®?

GOOD START formulas are tummy friendly and easy to digest*. Designed with baby’s comfort in mind, only GOOD START formulas have comfort proteins, which are 100% whey proteins that have been partially broken down using our unique process for small tummies.

Whenever you may decide it’s time for formula, choose GOOD START PLUS. It’s our closest formula to breast milk and the only non-GMO** baby formula with Comfort Proteins, Probiotics^.

Good Start SootheTM

Made to nourish fussy bellies. The first and only baby formula with L. reuteri.

Our Most Tummy Sensitive Formula

Designed to give sensitive tummies extra comfort, GOOD START SOOTHE is easy to digest* and has 30% less lactose compared to other GOOD START milk-based formulas. It is our most advanced formula that contains L. reuteri, a good bacteria that helps GOOD START SOOTHE give fussy babies what no other formula can.

Over 90% of parents who switched to GOOD START SOOTHE said their baby was less fussy after the first feed 1,2.


  • * Like all infant formulas

  • 1 Infants were exclusively formula fed; Canadian formulation differs slightly from the GOOD START SOOTHE formula used in the study.

  • 2 Czerkies L et al., 2019. Journal of Pediatric Health And Nutrition. 1(1):19-26.


MVP Logo

Get full access to expert-backed nutrition support, high-value coupons on our trusted brands and much more!

  • Ready for Baby

    Free Ready-for-Baby Savings Pack.

    Around 35 weeks of pregnancy expect to receive our Baby Pack filled with high-value coupons and useful information you and your baby will love!

  • Special member savings

    Special Member Savings

    Receive personalized coupons and savings on trusted products in your email inbox - and home mailbox - as your baby grows.

  • Helpful Resources

    Helpful resources

    Expert advice, articles, recipes, tips and tools for all the special, hard and at times hectic days of parenting.


    Nutritional guidance for growth

    Specialized nutritional guidance and science-based expertise for every stage of the parenting journey - from preconception to toddlerhood.

*When registration is during pregnancy. If your baby’s already been born, expect to see your kit within a month

Search icon

Still haven't found what you are looking for?

Try our new smart question engine.