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Opinion or narrative review

Review: 3 to 5 cups of coffee a day linked to lower death risk

Emadi and colleagues · Nutrients · 2025

Original title: Coffee's Impact on Health and Well-Being.

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

The review says large follow-up studies show moderate coffee, typically three to five cups a day, is linked to lower overall death. Added sugar and cream may weaken the benefit.

The study at a glance

Type of study
Opinion or narrative review
Who or what was studied
Adults, from long-term follow-up studies around the world
What was tested
A look back at research on moderate coffee drinking, mostly 3 to 5 cups a day
Who has a stake
Company stake
One author has been a consultant for the National Coffee Association; the paper says it was not funded by it.
Journal
Nutrients, 2025
Source
PubMed record 40806142. 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.
  • –Company stake: One author has been a consultant for the National Coffee Association; the paper says it was not funded by it.
  • •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: death from any cause

    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

    0

    None among the papers we read.

  4. Population studies

    7

    6 benefit, 1 no difference

  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 coffee help you live longer?”

Linked to lower death risk; cause unproven.

Confidence: low. Based on 15 on-topic papers.

Read the full answer
  • Quoted in “What we found”: None of these papers is a trial of coffee and death. Reviews say most data are observational and randomised trials are needed to show cause.
  • Open item for a person: Emadi 2025 author consulted for the National Coffee Association; paper says it was not funded or reviewed by it. Confirm the company label.

Other opinion on this question

See all 15 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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