Probiotic strains: benefits by goal, the dosage that worked, and the supplements ranked
What the 21 human studies of probiotic strains we graded show for each goal, the dose that worked, and the products that hold it. This page is educational, not medical advice.
Probiotic strains benefits, by goal: what the studies show
Members OnlyThe top 1 of 1 goals
| Goal | What the studies show | Studies | Dose that worked |
|---|---|---|---|
| Hormone Balance for Women | Improved in studies 21 studies, 9 showed an improvement, 7 found none, 2 pooled analyses | 21 | 34 mg |
Probiotic strains supplements, ranked by the human studies
Members OnlyNone in our catalog yet
No product in our catalog holds it at a dose that counts yet.
Probiotic strains dosage: how much per day
The dose that worked in the studies, and the upper limit
The studies taken by mouth that showed an improvement gave 34 to 60 mg a day.
Biohacker panel
Members OnlyWhat our 10 biohackers say about probiotic strains
Thomas DeLauer, 26 Jun 2026: Uses Seed DS-01 Synbiotic, a prebiotic and probiotic, and noticed a difference in skin clarity, smoothness, and overall well-being within about 4 days of taking it. Source
Dr. Mark Hyman, 6 May 2026: Has reviewed countless probiotics and states that Seed's DS-01 Daily Synbiotic stands out as the number one digestive health probiotic, formulated with 24 clinically studied strains to support gut and whole body health. Source
Dave Asprey, 24 Mar 2026: Confirms that all probiotic strains in Omni-Biotic do not produce histamine, which is significant for people with histamine sensitivity, long COVID, or mast cell activation syndrome. Source
Andrew Huberman, 6 Jan 2025: Notes that AG1's latest formula upgrade includes several clinically studied probiotic strains shown to support digestive health, immune system health, improve bowel regularity, and reduce bloating. Source
Ben Greenfield, 4 May 2024: Recommends Pendulum's new probiotic strain or series of strains, which simulate the feeling of fullness similar to injectable meds, as an effective way to suppress hunger. Source
Dr. Eric Berg: Research shows that intestinal flora composition is closely linked with anxiety and depressive disorders and may improve by introducing beneficial probiotic strains to the gut. Source
Read more
Our articles on probiotic strains
- How to Improve Gut Health Naturally: Fiber, Foods and the Probiotic Strains With Human TrialsArticle · Sep 15, 2026
- Diet and Insulin Resistance: A Comprehensive GuideArticle · Sep 11, 2026
In the news
New studies of probiotic strains
Questions people ask
Members OnlyAnswered from the figures on this page
What is probiotic strains good for?
By the human studies we graded, probiotic strains shows an improvement for hormone balance for women.
Probiotic strains for hormone balance for women: what do the studies show?
In the human studies of probiotic strains we graded for hormone balance for women: 21 studies, 9 showed an improvement, 7 found none, 2 pooled analyses. The dose that worked: 34 mg a day.
How much probiotic strains per day?
The studies taken by mouth that showed an improvement used 34 to 60 mg a day.
Can I take probiotic strains with my meds?
Some supplements can change how meds work or are absorbed. Members have every product checked against the meds in their Health Profile before it joins their protocol.
Educational, not medical advice. Figures come from the human studies on PubMed we have graded; a study counts for a form when it names the form it used. Updated as new studies arrive. How we grade →
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