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Randomized trial · measured other health measures

3-month trial in 50 adults with obesity: berberine lowered weight, Gymnema lowered blood sugar

Bandala and colleagues · Nutrients · 2024

Original title: Comparative Effects of Gymnema sylvestre and Berberine on Adipokines, Body Composition, and Metabolic Parameters in Obese Patients: A Randomized Study.

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

Mixed

Over 3 months, berberine lowered body weight and blood pressure (p < 0.05); Gymnema, not berberine, lowered fasting glucose. In the end-of-study comparison between groups, the abstract reports differences only in two fat-tissue gene markers.

The study at a glance

Type of study
Randomized trial
Who or what was studied
50 people · 50 Mexican adults with obesity
What was tested
Berberine or the herb Gymnema sylvestre for 3 months, compared with each other; no placebo
What it measured
Several kinds of outcomes
How long
13 weeks
Who has a stake
No stake declared
No competing interests declared.
Journal
Nutrients, 2024
Source
PubMed record 39064727. This page is based on the abstract only.

How much this study counts

  • ✓Randomized: people were put into groups by chance, so the groups start out alike.
  • ✓Compared with a placebo, a dummy treatment.
  • •Medium size: 50 people.
  • •Lasted 13 weeks.
  • •Measured several kinds of outcomes.
  • ✓No competing interests declared.
  • •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

Each dot is one on-topic paper on this question. Steps near the top answer the question more directly.

↑ 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

    ↑ This study is the ringed dot

  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

Of the other 6 papers on the same step: 5 benefit, 1 no difference. This one found mixed. It differs from most of them.

Other papers on the same step

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 2 fields 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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