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Randomized trial · measured other health measures

Trial in 100 bowel cancer patients after surgery: probiotic mix reduced chemotherapy gut problems

Huang and colleagues · Nutrients · 2023

Original title: Postoperative Probiotics Administration Attenuates Gastrointestinal Complications and Gut Microbiota Dysbiosis Caused by Chemotherapy in Colorectal Cancer Patients.

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What the study found

Points to benefit

Probiotics reduced chemotherapy-related gut problems, mostly diarrhea (p < 0.01). They also raised gut bacteria variety and short-chain fatty acids (p < 0.0001).

The study at a glance

Type of study
Randomized trial
Who or what was studied
100 people · 100 people with bowel cancer who had surgery and then chemotherapy
What was tested
A probiotic mix (strains not named in abstract) vs placebo, from after surgery to the end of the first chemotherapy course
What it measured
Several kinds of outcomes
Who has a stake
No stake declared
No competing interests declared.
Journal
Nutrients, 2023
Source
PubMed record 36678227. 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: 100 people.
  • •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: gut symptoms such as bloating and IBS

    9

    5 benefit, 2 mixed, 2 no difference

  2. Trials in people: other measures

    10

    4 benefit, 2 mixed, 4 no difference

    ↑ This study is the ringed dot

  3. Trials in people: lab tests or safety

    0

    None among the papers we read.

  4. Population studies

    0

    None among the papers we read.

  5. Blood levels and genes

    0

    None among the papers we read.

↓ Weaker evidence

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

How it fits with the other research

The short answer to “Do probiotics improve gut health?”

Some strains may help some symptoms.

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

Read the full answer

Of the other 9 papers on the same step: 3 benefit, 2 mixed, 4 no difference. This one found benefit.

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 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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