Tier 2 — strong

The Effect of Betaine on Nitrate and Cardiovascular Response to Exercise

J Luke Pryor, S Tony Wolf, Gary Sforzo, Tom Swensen
International journal of exercise science 2017 10(4):550-559

Bibliography

PubMed
PMID 28674599
PubMed Central
PMC5466406
DOI
10.70252/XTOO5967
Funding
Funding was not specified in the indexed record or accessible funding metadata.
Competing interests
A competing-interest declaration was not available in the indexed record or accessible disclosure metadata.

Study snapshot

DesignRandomized crossover controlled trial
ModelHuman participants
Sample10 healthy college-age volunteers
InterventionSingle 2.5 g betaine dose versus matched beverage
DurationAcute dosing followed by 30 minutes of cycling
EndpointsPlasma nitrate; Cardiovascular response

What the study showed, in plain terms

Published in 2017, this source examined exercise performance and body composition. Design: Randomized crossover controlled trial. Sample/model: 10 healthy college-age volunteers. The exposure or intervention was Single 2.5 g betaine dose versus matched beverage. Follow-up or treatment period: Acute dosing followed by 30 minutes of cycling.

Betaine did not significantly increase plasma nitrate or change the cardiovascular response at rest or during moderate exercise.

Small acute study; nitrate concentration is an indirect mechanistic marker and does not test chronic training adaptation.

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Continue with Betaine Anhydrous Pre-Workout: Performance, Dose and Evidence

Key findings

  • Betaine did not significantly increase plasma nitrate or change the cardiovascular response at rest or during moderate exercise.
  • The recorded outcome domains were Plasma nitrate; Cardiovascular response.
  • The result applies to the tested exposure: Single 2.5 g betaine dose versus matched beverage; Acute dosing followed by 30 minutes of cycling.

What this study can and cannot tell us

  • Small acute study; nitrate concentration is an indirect mechanistic marker and does not test chronic training adaptation.
  • An individual controlled trial must be interpreted alongside its comparator, sample size, endpoint selection and independent replication. It does not validate a different commercial formulation or a general longevity claim.
  • 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 Supplementation Improves 60 km Cycling Time Trial Performance and One-Carbon Metabolism in Cyclists During Recovery
David C Nieman et al. · Nutrients · 2025
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Editorial review

Reviewed by the Biohack Blueprint research team

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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