How Long Does It Take for Probiotics to Work?

The answer depends on why, what type and how much you are taking. Depending on why you are taking probiotics, the improvements of the symptoms can happen anywhere between a few days to a few months. If you are taking probiotics for general gut or immune health, it might take a while to see results. However, if you are taking a probiotic for relief from diarrhoea, you may see quicker  results.¹³ Research has found that the type of microbe strain, health condition, product formula, dose and the quality of the product are all important for the effectiveness of probiotics.^[1]

1. Jason C. Sniffen. Lynne V. McFarland. Charlesnika T. Evans. Ellie J. C. Goldstein. (2018). ‘Choosing an appropriate probiotic product for your patient: An evidence-based practical guide’. US National Library of Medicine. National Institutes of Health. 26 December. Available at: <https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6306248/>