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Systematic review

Review of 11 pooled analyses: berberine lowered blood sugar and body measures, uneven quality

Li and colleagues · Phytotherapy research : PTR · 2023

Original title: Berberine and health outcomes: An umbrella review.

Under review. A person has not yet checked this summary against the paper. It is written from the PubMed abstract. Until a person checks it, search engines are asked not to list this page.

What the study found

Points to benefit

Berberine lowered blood sugar, insulin resistance, blood fats and body measures compared with controls. Common side effects were constipation and diarrhea. The authors say the pooled studies were of uneven quality and need confirming in high-quality trials.

The study at a glance

Type of study
Systematic review
Who or what was studied
11 studies · People in trials of berberine, pooled from 11 earlier meta-analyses
What was tested
Berberine compared with control treatments, as summarized from earlier pooled analyses
What it measured
Several kinds of outcomes
Who has a stake
No disclosure in PubMed
No disclosure in PubMed; funded by Chinese public research bodies.
Journal
Phytotherapy research : PTR, 2023
Source
PubMed record 36999891. This page is based on the abstract only.

How much this study counts

  • •Sums up 11 studies found with a set search method, without pooling the numbers.
  • •Measured several kinds of outcomes.
  • •The PubMed record has no conflict-of-interest statement.
  • •Summarized from the PubMed abstract only. The full paper may hold details the abstract leaves out.

✓ Strength– Limit• Note

These points come from fixed rules about the type of study, its size and length, what it measured, and who has a stake. Every study on Digestery gets the same rules.

Where this study sits

This paper is not on the ladder. It is a systematic review, and reviews and opinion pieces discuss studies that are already counted on the steps below.

↑ Stronger evidence

  1. Trials in people: weight and blood sugar

    7

    7 benefit

  2. Trials in people: other measures

    7

    5 benefit, 1 mixed, 1 no difference

  3. Trials in people: lab tests or safety

    2

    1 benefit, 1 no difference

  4. Population studies

    2

    2 benefit

  5. Blood levels and genes

    0

    None among the papers we read.

  6. Animals

    1

    1 benefit

↓ Weaker evidence

  • Points to benefit
  • Mixed
  • No difference
  • No direction
  • Points to harm

How it fits with the other research

The short answer to “Does berberine help with weight loss and blood sugar?”

Lowers blood sugar in diabetes; weight unclear.

Confidence: low. Based on 28 on-topic papers.

Read the full answer

Other reviews on this question

See all 28 studies on this question

How this page was made

Label

First read of the abstract
Claude Sonnet
Independent second read
Claude Haiku
Differences settled
The reviewer corrected 1 field after reading the abstract. Claude Opus 5.5.
Headline
Claude Sonnet, from the checked study record. A script checked its numbers and wording.
Numbers
Checked against the abstract by a script
“How much this study counts”
Fixed rules, the same for every study
Source check by a person
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