Key result
African oil bean seed intake linked to marked blood pressure reduction in resistant hypertension.
Why the study?
No previous case study has reported the antihypertensive effect of the African oil bean seed despite its known nutritional and medicinal benefits.
Does fermented African oil bean seed (ugba) reduce blood pressure in a patient with resistant hypertension?
Case Report (n=1)
No
Does fermented African oil bean seed (ugba) reduce blood pressure in a patient with resistant hypertension?
Answers are grounded in this paper and cite their sources.
This case report suggests a potent antihypertensive effect of fermented African oil bean seeds, warranting further clinical investigation to identify its active compound.
In Nigeria, several trees which yield fruits of nutritional and medicinal importance have been identified within the forest and savannah regions. One such important but less known legume protein source is the African oil bean seed. While the literature shows its effect in treatment of hypercholesterolemia, reduced risk of cancer and tobacco-related diseases, no case study from the available literature search has reported its antihypertensive effect. We report a case of resistant hypertension that improved remarkably on ingestion of the African oil bean seed, with a call for more studies and clinical trials on the possible antihypertensive property of the African oil bean seed. Extraction of the likely putative content may increase the available literature of anti hypertensives available for patient care.
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Okwuonu et al. (2026) conducted a case report in Resistant hypertension and Chronic Kidney Disease (n=1). Fermented African oil bean seed (ugba) vs. Prior standard antihypertensive medical therapy was evaluated on Blood pressure reduction. Self-administration of two fermented African oil bean seeds daily dramatically reduced blood pressure from 170/100 mmHg to 100/70 mmHg in a patient with resistant hypertension.
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