Tier 4 — mechanistic

Betaine Supplementation May Improve Heat Tolerance: Potential Mechanisms in Humans

Brandon D Willingham, Tristan J Ragland, Michael J Ormsbee
Nutrients 2020 12(10):2939

Bibliography

PubMed
PMID 32992781
PubMed Central
PMC7599524
DOI
10.3390/nu12102939
Funding
Funding was not specified in the indexed record or accessible funding metadata.
Competing interests
Reported disclosure: The authors declare no conflict of interest.

Study snapshot

DesignNarrative review
ModelEvidence synthesis; mixed research models
SamplePublished literature; no newly enrolled participant cohort
InterventionReview of betaine-related evidence; no single assigned intervention
DurationEvidence review; source-specific study durations vary
EndpointsBetaine biology; Clinical and mechanistic evidence

What the study showed, in plain terms

Published in 2020, this source examined mechanistic and clinical reviews. Its evidence base was Published literature; no newly enrolled participant cohort. It evaluated Review of betaine-related evidence; no single assigned intervention across Evidence review; source-specific study durations vary.

Proposes mechanisms by which betaine might improve heat tolerance, based mainly on cell and animal work.

The hypothesis was explicitly speculative in humans; a later controlled passive-heat study did not demonstrate improved heat tolerance.

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Key findings

  • Proposes mechanisms by which betaine might improve heat tolerance, based mainly on cell and animal work.
  • The recorded outcome domains were Betaine biology; Clinical and mechanistic evidence.

What this study can and cannot tell us

  • The hypothesis was explicitly speculative in humans; a later controlled passive-heat study did not demonstrate improved heat tolerance.
  • The conclusions inherit the limitations of the underlying studies. A narrative interpretation or guideline recommendation is not a new randomized treatment comparison.
  • Source basis: Accessible full-text extract plus indexed bibliographic data. Missing method details, funding information or participant denominators are not inferred.

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Betaine in human nutrition
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Editorial review

Reviewed by the Biohack Blueprint research team

Last verified

Dr. Khaled Mahmoud, MBBChCritical Care Medicine, Longevity Science & Editorial Direction Dr. Amr Yasser, PhDCardiometabolic, Musculoskeletal, Gut & Bioavailability Dr. Abdulla Mostafa, PhDCellular Senescence, Neurological, Mitochondrial & Brain-Ageing Biology