Tier 4 — mechanistic

Dietary choline and betaine intake and risk of hypertension development: a 7.4-year follow-up

Mahdieh Golzarand, Zahra Bahadoran, Parvin Mirmiran, Fereidoun Azizi
Food & function 2021 12(9):4072-4078

Bibliography

PubMed
PMID 33977970
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

DesignProspective cohort
ModelHuman participants
Sample2865 Tehran Lipid and Glucose Study participants
InterventionHabitual dietary choline and/or betaine intake; no randomized TMG treatment
DurationMedian 7.4 years
EndpointsHypertension incidence

What the study showed, in plain terms

Published in 2021, this source examined human observational and biomarker research. Design: Prospective cohort. Sample/model: 2865 Tehran Lipid and Glucose Study participants. The exposure or intervention was Habitual dietary choline and/or betaine intake; no randomized TMG treatment. Follow-up or treatment period: Median 7.4 years.

Dietary betaine was not significantly associated with incident hypertension; findings for choline differed.

Observational exposure analysis: residual confounding and reverse causation remain possible. Associations do not establish that betaine supplementation causes the same outcome.

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Key findings

  • Dietary betaine was not significantly associated with incident hypertension; findings for choline differed.
  • The recorded outcome domains were Hypertension incidence.
  • The exposure was observed rather than assigned as an isolated supplement treatment.

What this study can and cannot tell us

  • Observational exposure analysis: residual confounding and reverse causation remain possible. Associations do not establish that betaine supplementation causes the same outcome.
  • Confounding, dietary patterns, illness, medication use and reverse causation can influence an association. Blood or dietary concentrations do not identify the effect of starting a capsule.
  • Source basis: Indexed abstract and bibliographic data. Missing method details, funding information or participant denominators are not inferred.

Editorial review

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