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Opinion or narrative review

Review: expert report judged red and processed meat link to bowel cancer convincing

Abid and colleagues · The American journal of clinical nutrition · 2014

Original title: Meat, dairy, and cancer.

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 harm

A 2007 expert report judged the link between red and processed meat and bowel cancer as convincing. Links with other cancers are unclear.

The study at a glance

Type of study
Opinion or narrative review
Who or what was studied
People in US National Cancer Institute studies and later meta-analyses
What was tested
Red and processed meat, and dairy, and cancer
Who has a stake
No disclosure in PubMed
No disclosure in PubMed; funded by the US National Institutes of Health.
Journal
The American journal of clinical nutrition, 2014
Source
PubMed record 24847855. This page is based on the abstract only.

How much this study counts

  • –An opinion or narrative review: no new data, and no set method for choosing which studies to discuss.
  • •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 opinion or narrative review, and reviews and opinion pieces discuss studies that are already counted on the steps below.

↑ Stronger evidence

  1. Trials in people: cancer and heart disease

    0

    Not done yet. This is the step that would answer the question.

  2. Trials in people: other measures

    0

    None among the papers we read.

  3. Trials in people: lab tests or safety

    6

    2 benefit, 4 harm

  4. Population studies

    12

    1 benefit, 2 mixed, 1 no difference, 8 harm

  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 “Does red meat raise cancer and heart disease risk?”

Linked to higher risk, especially processed meat.

Confidence: low. Based on 30 on-topic papers.

Read the full answer
  • Marked as a key paper in the research timeline: Review notes 2007 report called bowel cancer link convincing.

Other opinion on this question

See all 30 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 two reads differed. The reviewer checked the abstract and kept the first read. 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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