Probiotics For Kids: Types, Benefits And Side Effects

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Probiotics have gained attention and popularity in recent decades due to scientific evidence indicating their positive effects on human health (1). They have been found to be useful for adults in maintaining gut health, which has encouraged some parents to use probiotics for kids too. But are they of any use to children?

In this post, MomJunction tells you if probiotics are required for children, how they can be useful, and the various food sources of probiotics.

What Are Probiotics?

The good bacteria or yeast that we need to maintain good health especially gut health are known as probiotics. The human gut has millions of microorganisms. Probiotics are nonpathogenic, gut microorganisms that live in a symbiotic relationship with humans for mutual well-being (2).

The Food and Agriculture Organization of the United Nations (FAO) and World Health Organization (WHO) have originally defined probiotics as “live strains of strictly selected microorganisms which when consumed in adequate amounts provide health benefits to the host (3). The same definition was adopted by the International Scientific Association for Probiotics and Prebiotics (ISAPP) in 2013.

Are Probiotics Safe?

Probiotics are generally regarded as safe. However, their use should be avoided in critically ill or immune-compromised patients. Although their side effects are not much talked about, these probiotics should be taken only in consultation with doctor.. Several food products contain probiotics and these are safe to be consumed. But the amount of probiotics required for various illnesses can vary.

The USFDA (Food and Drug Administration) regulates probiotics not as a medicine but as a food product. Therefore, it is not as strictly tested and monitored as medicines are.

Probiotics are not an alternative to medication or treatment to address a health problem. Therefore, consult your child’s doctor to know about the type of bacteria and dosage to use so that you can avoid any side-effects. But as you do so, read the next section to know how probiotics are useful for your kid.

How Probiotics May Be Useful For Children

The benefit imparted by probiotics depends upon the type and the number of microorganisms present. Foods considered to be probiotic contain colonies of probiotic bacteria. The following are the benefits of probiotics for humans, including children.

  1. Probiotics help in maintaining healthy intestinal microbial balance in kids. This balance is important to have proper digestion and absorption of nutrients in the gut.
  1. preliminary evidence suggests that probiotics may help in preventing or treating conditions such as (5) (6) (7):
    • Viral diarrhea
    • Irritable bowel syndrome
    • Inflammatory bowel disease like ulcerative colitis
    • Hay fever
    • Colon inflammation
    • Common cold
    • Respiratory infections
  1. Certain allergies in kids are common, and some are specific. Probiotics have been documented effectiveness for kids with allergies, such as eczema and allergic rhinitis (8).
  1. Probiotics help maintain immunity in kids by boosting the production of antibodies in the body.
  1. Oral health is crucial. This is more of a concern for kids in special, so probiotics could help maintain oral health. It prevents oral diseases, such as dental caries and periodontal infections (9).

Types Of Probiotics: What To Choose?

Probiotics are specific for the disease they are targeting to. For example the main bacterial strains regarded as safe in case of digestive system related problems are lactobacillus and bifidobacteria. These stains naturally inhabit the intestinal tracts of humans and animals. Some of the most commonly used probiotics are lactobacillus bacteria – also found in the small intestine, bifidobacteria – also found in the large intestine, streptococcus thermophilus and a yeast named saccharomyces boulardii (10).

Similarly, in the case of skin allergies or ezema, probiotics which are found useful are L. salivarius.

Food Sources Of Probiotics

Foods are the best sources of probiotics because they are natural. The various probiotic food options for your child are:

  1. Yogurt: One of the probiotic sources which have gained momentum in the commercial domain. The probiotic content of yogurt may help relieve irritable bowel syndrome and may also help in reducing diarrhea as caused by antibiotics generally. It generally suits kids who cannot tolerate milk products as the bacteria in yogurt breaks down the lactose into lactic acid, making it less likely to cause bloating (11).
  1. Cheese: You may also try cheeses including mozzarella, cheddar, gouda, and cottage cheese which too could provide probiotics (12).
  1. Buttermilk: The liquid skimmed after making butter is served as buttermilk in India. Only the traditional drink contains probiotics and not the cultured ones. It has vitamin B12, calcium and some other minerals (13).
  1. Kefir: The fermented milk-drink is produced by lactic acid bacteria and yeasts, which are friendly to the human body. It is tolerated by kids who are lactose intolerant. Kefir may help improve digestion and offer protection against infections (14).
  1. Pea: Green peas are found to be a good source of probiotics as they contain Leuconostoc mesenteroides, which is a potent probiotic.
  1. Pickles: Indian fermented pickles especially carrot, radish, and turnip
  1. Idly and dosa: South Indian food prepared with fermented rice and daal batter are high in probiotics.
  1. Some other sources of probiotics are:
    • Kombucha (a fermented tea drink)
    • Miso, a Japanese fermented soybean paste used as dips and dressing
    • Kimchi, fermented vegetables served with chinese dishes

Note: Some probiotic foods may be allergy triggers. If your child has lactose intolerance, milk allergy, or soy allergy, then consult a doctor before introducing milk-based and soy-based probiotics in a child’s diet.

In addition to foods, probiotics are also available in the form of supplements. Before knowing about supplements to use, let’s see how to choose the right one for your child.

Do Children Need Probiotic Supplements?

Probiotic supplements should not be used unless directed by a pediatrician. It is always advisable to focus on probiotic food sources rather than relying on a supplement. Probiotics are useful in maintaining a healthy gut and immune system, but they should not be given to your child indiscriminately. Let’s know why.

Possible Side-Effects Of Probiotics

Probiotics are usually safe. However, in some cases, they might cause the following problems (16) (17) (18).

  1. They could result in minor digestive problems such as bloating or flatulence.
  1. Yeast-based probiotics may result in constipation.
  1. Lactose intolerant kids can have indigestion and gas from milk-based probiotics.
  1. Some probiotics contain amines, which may stimulate the nervous system leading to a fluctuation in the blood flow and cause headaches.
  1. Harmful metabolic activities such as d-lactate production and bile salt deconjugation.
  1. Excessive immune stimulation possibly leading to autoimmune phenomena or inflammation.
  1. Lateral gene transfer from probiotic organisms to other organisms resulting in antimicrobial resistance. However, there is no clinical evidence to this effect.
  1. Sometimes it can lead to some infection that needs antibiotic treatment. Such cases happen mostly in children with underlying health problems.

You may note that the effects depend on how your child’s body reacts to the ingredients in the probiotics. Moreover, these side-effects are specific to certain probiotics, and not common to all of them.

Do All Probiotics Have The Same Effectiveness On Every Child?

No. Probiotics differ from one another, and so are their effects. The effectiveness of a probiotic depends on the specific strain of bacteria and the defined dose of the probiotic microorganisms (19). This efficiency cannot be extrapolated to other strains, not even very closely related strains.

Also, there is no definite dose recommendation that suits everyone.

Although probiotics have health benefits, they are still not tested as medicine but only as a food product. Therefore, consult your child’s healthcare provider before giving your child probiotics.
Have you been giving probiotic supplements to your child or using probiotic food sources? Let us know in the comment section below.


MomJunction's articles are written after analyzing the research works of expert authors and institutions. Our references consist of resources established by authorities in their respective fields. You can learn more about the authenticity of the information we present in our editorial policy.
1. Maria Kechagia et al.; Health Benefits of Probiotics: A Review; National Centre for Biotechnology Information (2013)
2. Saif Ul Islam; Clinical Uses of Probiotics; National Centre for Biotechnology Information (2016)
3. Paulina Markowiak and Katarzyna Śliżewska; Effects of Probiotics, Prebiotics, and Synbiotics on Human Health; National Centre for Biotechnology Information (2017)
4. Iva Hojsak et al.; Guidance on the use of probiotics in clinical practice in children with selected clinical conditions and in specific vulnerable groups; National Centre for Biotechnology Information (2018)
5. Health benefits of taking probiotics; Harvard Medical School; Harvard Health Publishing
6. Ian Rowland et al.; Current level of consensus on probiotic science; National Centre for Biotechnology Information (2010)
7. Should you take probiotics?; Harvard Medical School; Harvard Health Publishing (2019)
8. Ö Özdemir; Various effects of different probiotic strains in allergic disorders: an update from laboratory and clinical data; National Centre for Biotechnology Information (2010)
9. Lye Huey Shi et al.; Beneficial Properties of Probiotics; National Centre for Biotechnology Information (2016)
10. Sabina Fijan; Microorganisms with Claimed Probiotic Properties: An Overview of Recent Literature; National Centre for Biotechnology Information (2014)
11. Oskar Adolfsson et al.; Yogurt and gut function; Academic Oxford University Press (2004)
12. Karimi et al.; Viability of probiotic microorganisms in cheese during production and storage: a review; HAl Archives (2011)
13. Cultured Buttermilk • Light, Tangy, Healthy, Refreshing!; Probiotics Center (2018)
14. Christa Raak et al.; Regular Consumption of Sauerkraut and Its Effect on Human Health: A Bibliometric Analysis; National Centre for Biotechnology Information (2014)
15. Damiana D. Rosa et al.; Milk kefir: nutritional, microbiological and health benefits; Nutrition Research Reviews; The Nutrition Society (2017)
16. Williams NT; Probiotics.; National Centre for Biotechnology Information (2010)
17. Broadley KJ et al.; Effects of dietary amines on the gut and its vasculature.; National Centre for Biotechnology Information (2009)
18. Shira Doron and David R. Snydman; Risk and Safety of Probiotics; National Centre for Biotechnology Information (2015)
19. Kamińska E;[Effectiveness and safety of probiotics in children on the basis of clinical trials]; National Centre for Biotechnology Information (2012)

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