No Benefit evidenceother
Prebiotic Fiber (Inulin/FOS) for High Blood Pressure
Short-chain fatty acids from fermentation may activate blood-pressure-regulating receptors in blood vessels and kidneys, promoting vasodilation — a mechanism shown in animal and small human studies, not established at scale.
How strong is the research?
No Benefit evidence
Pooled analysis of 5 trials/6 arms found no significant overall effect on systolic BP (-5.83 mmHg, p=0.086) or diastolic BP (-2.62 mmHg, p=0.147); low quality of included studies.
How much to take
10–15 g