3/5
Moderate
evidence
Health support evidence brief
Probiotics
May support gut, immune, or illness-related outcomes when the strain matches the evidence; direct performance effects are less consistent.
Headline Finding
Athlete/active-population reviews support strain-specific gut or immune signals; performance effects are less consistent.
Dose Context
Match the studied strain, colony count, and duration; generic CFU totals are not interchangeable.
Important Caveat
The score is for strain-matched gut or immune support, not for generic CFU count or broad performance enhancement.
Source Drawer
Linked Research
- Review Gut microbiota sport review
- Systematic review Sports performance systematic review
- Meta-analysis URTI/immune meta-analysis
- Meta-analysis Athletic ability meta-analysis
- Systematic review Physically active systematic review
- Meta-analysis Immune marker meta-analysis
How To Read This Rating
The score reflects evidence that the supplement does its stated job. Some jobs are direct, such as strength, endurance, or recovery; others are indirect, such as sleep, mood, appetite, or health support. A real effect can still receive a cautious practical rating when dose, safety, product quality, or audience fit remain uncertain.
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