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How Long Does it Take for Prebiotics to Work in Kids?

Medically Reviewed by May Zhu, RDN | Published March 28, 2024

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In the journey to better gut health, prebiotics have emerged as a promising solution. If you’ve ever wondered how long it takes for prebiotics to start working in your kiddos, you’re not alone - it’s one of the most common questions we get from parents. Let’s review what the current studies tell us about prebiotic effectiveness and when parents can expect for prebiotics to start working in their kids. 

How Prebiotics Work 

Prebiotics are non-digestible fibers that serve as food for beneficial gut bacteria, stimulating their growth and activity. By nourishing these friendly microbes, prebiotics contribute to a healthy gut microbiome, which plays a crucial role in digestion, immune function, and overall well-being.

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Timeline of Prebiotic Effects

Short-Term Effects

While some kiddos may experience immediate benefits from prebiotic consumption such as reduced bloating or improved bowel regularity, significant changes in gut microbiota composition typically take time to manifest. Short-term improvements in digestive comfort may occur within days to weeks of consistent prebiotic intake, with other factors such as diet and medication that can contribute to this timeframe. 

Medium-Term Effects

Studies suggest that noticeable shifts in gut microbiota diversity and stool composition may occur within a few weeks and up to months of regular, daily prebiotic consumption.

Specifically, studies on chicory root fiber has demonstrated that inulin/chicory root fiber supplementation can lead to favorable changes in gut bacteria populations when consumed daily over a 6-week period, helping kids with softer and more frequent poops. 

Begin Health Expert Tip

Our Growing Up Prebiotics is safe for long-term use in kids and can be used as a part of your little one's health routine for maintained health promoting benefits. Benefits can be seen within six weeks of daily use. 

Long-Term Benefits

The long-term effects of prebiotics on gut health are believed to be cumulative, with continued consumption supporting a thriving gut microbiome over time. Regular intake of prebiotic-rich foods or supplements can help maintain a balanced gut microbiota, which is essential for supporting digestive health, immunity, proper growth, and overall well-being in kiddos.

Summary

The timeline for prebiotic effectiveness varies depending on factors such as dosage, frequency of consumption, and individual differences in gut microbiota. However, consistent consumption of prebiotics can lead to long-term improvements in gut health, supporting the overall health of our little ones.

View Citation

  • [1] Gibson GR, Hutkins R, Sanders ME, et al. Expert consensus document: The International Scientific Association for Probiotics and Prebiotics (ISAPP) consensus statement on the definition and scope of prebiotics. Nature Reviews Gastroenterology & Hepatology. 2017;14(8):491-502.
  • [2] Valeur J, Puaschitz NG, Midtvedt T, Berstad A. Oatmeal porridge: impact on microflora-associated characteristics in healthy subjects. British Journal of Nutrition. 2016;115(01):62-67.
  • [3] Closa-Monasterolo R, Ferré N, Castillejo-DeVillasante G, Luque V, Gispert-Llaurado M, Zaragoza-Jordana M, Theis S, Escribano J. The use of inulin-type fructans improves stool consistency in constipated children. A randomised clinical trial: pilot study. Int J Food Sci Nutr. 2017 Aug;68(5):587-594. doi: 10.1080/09637486.2016.1263605. Epub 2016 Dec 8. PMID: 27931142.