Yayyyyy! A meta-analysis of 25(!) clinical trials found that cocoa "flavanols" (natural plant compounds) LOWERED blood pressure! https://pubmed.ncbi.nlm.nih.gov/42679502/ That held whether they came from supplements, cocoa powder or dark chocolate. Why would cocoa do that? The likely reason is nitric oxide (N.O.) - cocoa flavanols seem to help your body make more N.O., which relaxes and widens blood vessels. When your vessels relax, your blood pressure can come down. This adds to growing research suggesting cocoa is good for your heart. Woohoo! Even better in midlife. One caveat though: this doesn’t really apply to milk chocolate. It’s usually very low in flavanols and high in sugar. (Choose good-quality dark chocolate or unsweetened cocoa powder.) Fun. Classifying this one as a "win." 🎉 ... Study type: Meta-analysis of 25 randomized controlled trials Population: 1,167 adults, with high blood pressure (9 trials) or without hypertension (16 trials) Intervention: Cocoa extract (13 trials), chocolate (10 trials), or cocoa powder (2 trials), providing 11–1,680 mg of cocoa flavanols. The trials ranged in duration from 2 weeks to 6 months. Notable results: On average, cocoa flavanols reduced systolic blood pressure by 2.7 mmHg + diastolic blood pressure by 1.8 mmHg. Reductions were slightly greater in those with high blood pressure than in those without. In dose-response analysis, higher flavanol dosages resulted in greater blood pressure reductions (= more chocolate => more good! lol).