ProbioticForGutHealth.com
CFU count is marketing.
Strain identity is medicine.
A 10B CFU single-strain product with clinical evidence for your indication will outperform a 200B CFU multi-strain blend every time. We review probiotics by strain-indication match, not bacterial count.
Edited by Max Yao. All claims sourced from peer-reviewed literature (PMIDs linked). Not medical advice — consult a healthcare professional before starting supplementation.
The Gate-20 Insight
More bacteria does not mean better outcomes
A 2021 systematic review in Frontiers in Microbiology (27 RCTs) found no dose-response relationship between CFU count and clinical outcomes. Culturelle's 10B CFU Lactobacillus rhamnosus GG has more human trial data for antibiotic-associated diarrhoea than any 50-strain, 200B CFU blend. We rank products by Strain-Indication Match Score — how many strains have RCT evidence for the condition the product is marketed for.
Top-Rated Probiotics
Ranked by Strain-Indication Match Score — not by CFU count or brand spend.
Seed
Gut microbiome diversity support, post-antibiotic recovery, biohackers wanting a prebiotic included
$49.99/mo subscription
Garden of Life
Broad-spectrum gut support for those who prefer whole-food sourced, refrigerated probiotics
£35-45/mo (30ct)
Culturelle
IBS symptom management, antibiotic-associated diarrhoea prevention, travellers
$19.99/mo (30ct)
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