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Evidence-Based Supplement Research
Evidence-Based Supplement Research
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flaxseed and Reduced Diastolic Blood Pressure

Research synthesisModerate evidenceModerate effect3 studies · 3 beneficial · 0 neutral · 0 harmful

Across 3 meta-analyses, all 3 reported beneficial moderate-sized effects of flaxseed supplementation on reducing diastolic blood pressure. The most-studied population is clinical patients with metabolic diseases, cardiovascular risk factors, or hypertension. Effects were statistically significant in all studies, with reductions ranging from -2.50 to -4.87 mmHg.

  • Studied populations: patients with metabolic diseases, people with cardiovascular disease risk factors, patients with hypertension

Caveats: Evidence base is small (only 3 studies) — conclusions should be considered preliminary. Available evidence is overwhelmingly positive — clinical literature in this area is subject to publication bias (null-result studies are less likely to be published or indexed). Study durations and doses were not consistently reported, limiting the ability to recommend specific dosing or treatment timelines.

Generated May 16, 2026
3 of 3 papers
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