Frequently asked questions
Probiotic FAQs
Each answer is built from approved atomic claims. References are generated from the verified evidence catalog rather than entered by the FAQ author.
Do probiotics help bacterial vaginosis?
In meta-analyses of randomized trials, participants assigned to Lactobacillus-based probiotic regimens were more likely to no longer meet bacterial-vaginosis diagnostic criteria at follow-up than participants assigned to placebo, but the evidence was weak and heterogeneous.
Read the sourced answer →Do probiotics help IBS?
Pooled randomized trials suggest some probiotic strains may improve IBS symptoms such as abdominal pain and overall symptom severity, but the effect is strain-specific rather than a general property of all probiotics.
Read the sourced answer →What does research show about probiotics taken with antibiotics?
In pooled randomized trials of adults, probiotics taken alongside antibiotics were associated with about a 37–38% lower risk of antibiotic-associated diarrhea. The effect varied by strain, dose, timing, and baseline risk.
Read the sourced answer →What are probiotics?
Probiotics are live microorganisms that, when administered in adequate amounts, confer a health benefit on the host.
Read the sourced answer →What does CFU mean in probiotics?
CFU means colony-forming units, an estimate of the number of live microorganisms in a probiotic serving. There is no single CFU amount that is right for every strain, product, or outcome.
Read the sourced answer →What is the difference between prebiotics and probiotics?
Probiotics are live microorganisms that confer a health benefit when administered in adequate amounts. Prebiotics are substrates selectively used by host microorganisms to confer a health benefit.
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