Research

Hormonal

Consumption of flavonoid-rich foods (cocoa, tea, berries) produces small but measurable improvements in blood pressure, endothelial function, and insulin resistance, mediated by enhanced nitric oxide bioavailability and AMPK activation.

Incorporate flavonoid-rich foods like dark chocolate (cocoa), tea, and berries into your daily diet. You do not need large quantities; even small amounts (e.g., ~30 kcal/d of dark chocolate) can contribute to lower blood pressure and better vascular health. Focus on consistency rather than high doses of supplements.

GoodSupportsHIGH confidence
Flavonoid-rich cocoa produces small but measurable benefits on blood pressure (BP), endothelial function, insulin resistance, and blood lipids... These benefits seem related to improved endothelial production of NO, a fundamental pathway for vascular and metabolic health.
Dariush Mozaffarian et al. · Circulation Research · 2018

Why this rating

Supported by systematic reviews and meta-analyses of randomized controlled trials (RCTs), though some trials had limited duration or bias.

Source

Flavonoids, Dairy Foods, and Cardiovascular and Metabolic Health

Dariush Mozaffarian et al. · Circulation Research · 2018

DOI 10.1161/circresaha.117.309008

narrative_reviewCited 301×
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

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