The Benefits of Probiotics for Your Baby

Oct 22, 2026

The gut is home to trillions of microorganisms, known as the microbiota, which help support digestion and immune function. A baby's microbiota begins developing shortly after birth and continues to evolve throughout early childhood, influenced by factors such as delivery method, feeding choices, and antibiotic use. The gut microbiota plays a crucial role in our overall well-being, from digestion to immune function. One way to support the development of baby’s microbiota is by supplementing with probiotics, which are live, beneficial bacteria that, when administered in adequate amounts, offer a health benefit.1 Not all probiotics are the same. Each strain has unique properties and functions, meaning that different strains can have different effects on health.

Sources of Probiotics

Breast Milk

Baby Formula

  • For formula-fed babies, some infant formulas, like Good Start® Plus powder formula, contain probiotics like the ones found in breast milk2 to help support a healthy microbiota.

Supplement

For parents looking for another option, probiotic supplements for babies are available in the form of drops, powders, or sachets.

What are the Benefits of Probiotics for Baby?

Support Digestive Health:

Probiotics can help balance the gut microbiome and help promote overall digestive health.2

Promotes Regular Stools:

Some probiotic strains have been shown to help improve bowel movements and reduce symptoms of constipation in babies.3

Reducing Colic Symptoms:

Studies show that probiotic L. reuteri  helps reduce fussiness in formula-fed babies4 and helps reduce crying time in colicky breastfed babies.4,5

Prevent Antibiotic-Associated Diarrhea:

Some probiotic strains help to prevent diarrhea caused by antibiotic use and can help maintain a healthy balance of gut bacteria.6

Supporting the Immune System:

Probiotics help promote a balanced gut microbiota, and the gut microbiota plays an important role in the development of the immune system. Certain probiotic strains, like B. lactis, have been shown to help support the immune system and gastrointestinal health of infants.7

Whether through breastfeeding or choosing an infant formula or supplement with probiotics, probiotics can help support your baby’s good gut health. For more information or support, consult your healthcare provider if you have any questions about introducing probiotics to your baby.

References:

1. Government of Canada, 2024. Health claims about microorganisms and use of the term "probiotic". Accessed: October 9, 2026. URL: http://www.canada.ca/en/health-canada/services/food-nutrition/food-labelling/health-claims/microorganisms-term-probiotic.html

2. Saavedra JM. Nutr Clin Pract. 2007;22:351–65.

3. Cocorullo P et al. J Pediatr. 2010;157(4):598-602.

4. Czerkies L, et al.  Pediatr Health Nutr. 2019 ;1(1) :19-26

5. Chau K, et al.  Pediar. 2015; 166(1):74-78.

6. Schneider R,Sant’Anna A. Paediatrics & Child Health. 2022; 27:482–491

7. Holscher HD, et al. JPEN. 2013;36(1):106S-117S.