Autoprobiotic supplements attenuate obesity and improve gut microbiota and metabolism in metabolic syndrome: a pilot trial
Autologous Enterococcus faecium and E. hirae supplementation reduced HbA1c and triglycerides compared to control in metabolic syndrome patients 28 days after a 20-day intervention.
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What the study showed
The autoprobiotic group showed reductions in blood glucose, HbA1c, and partial lipid profile normalization, along with gut microbiota changes assessed by qPCR and 16S rRNA sequencing. Intergroup comparison at day 28 revealed lower HbA1c and triglyceride concentrations in the experimental group. Taxonomic shifts included decreased Bacteroides fragilis group, Streptococcus spp., and Ruminococcus spp. in the autoprobiotic arm.
How it was done
Randomized pilot clinical trial with 50 metabolic syndrome patients (n=26 autoprobiotic, n=24 control) over 20 days; outcomes assessed at days 14 and 28 post-intervention using anthropometric, biochemical, and microbiome analyses.
Risk of bias
Small sample size (n=50) and pilot design substantially limit statistical power and generalizability. The abstract does not specify blinding, randomization quality, or control for dietary and lifestyle confounders during follow-up.
What this study does NOT prove
This study does not prove that autoprobiotics cause durable remission or control of metabolic syndrome, nor that they outperform dietary interventions or conventional probiotics.
In clinical practice
Preliminary findings do not support changes in clinical practice. Autoprobiotic approaches require validation in adequately powered, rigorous trials before any recommendation can be made.
Limitations
Small sample size (n=50) and pilot design substantially limit statistical power and generalizability. The abstract does not specify blinding, randomization quality, or control for dietary and lifestyle confounders during follow-up.
Technical appendix
Version history
- 1.0 · 2026-07-30 — Auto-generated under Evidence Standard v1.0
Paid access: structured summary from public metadata; consult the original study at the source.