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Population study: one-time survey

Study of 575 older adults: higher body taurine production linked to worse thinking scores

Kang and colleagues · Clinical nutrition (Edinburgh, Scotland) · 2024

Original title: Metabolic kinetics and muscle and brain health markers in older adults, and the role of age and presence of chronic morbidities: A large cross-sectional cohort study.

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What the study found

Points to harm

Having long-term illness was linked to higher whole-body taurine production (p < 0.04). Worse thinking performance was linked to higher taurine production (r: [0.13, 0.141], p < 0.04).

The study at a glance

Type of study
Population study: one-time survey
Who or what was studied
575 people · adults aged 50 to 95, with and without long-term illness
What was tested
Measured how fast the body makes many amino acids, including taurine, and linked this to muscle and thinking scores. No taurine given.
What it measured
Several kinds of outcomes
Trial registration
NCT01787682, NCT01624792, NCT02082418, NCT02157844
Who has a stake
No stake declared
No competing interests declared.
Journal
Clinical nutrition (Edinburgh, Scotland), 2024
Source
PubMed record 39423760. This page is based on the abstract only.

How much this study counts

  • –A one-time snapshot: it shows a link, not a cause, and cannot show which came first.
  • •575 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: aging and age-related decline

    1

    1 benefit

  2. Trials in people: other measures

    3

    1 benefit, 1 mixed, 1 no difference

  3. Trials in people: lab tests or safety

    2

    2 benefit

  4. Population studies

    2

    1 no difference, 1 harm

    ↑ This study is the ringed dot

  5. Blood levels and genes

    2

    1 mixed, 1 no direction

  6. Animals

    2

    1 benefit, 1 no difference

  7. Cells in a dish

    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 taurine slow aging?”

Not shown in people.

Confidence: very low. Based on 13 on-topic papers.

Read the full answer

Few other papers sit on the same step, so there is little to compare it with.

  • Quoted in “What we found”: In 575 adults aged 50 to 95, more taurine production in the body went with long-term illness and slightly worse thinking scores. This is a link, not proof of cause.
  • Part of the finding “Population and gene studies show links, not causes”.
  • Marked as a key paper in the research timeline: 2024: largest study, 575 older adults.

Other papers on the same step

See all 13 studies on this question

How this page was made

Label

First read of the abstract
Claude Sonnet
Independent second read
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Differences settled
The two reads agreed on every checked field. Claude Opus 5.5.
Headline
Claude Sonnet, from the checked study record. A script checked its numbers and wording.
Numbers
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“How much this study counts”
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