In a randomized, double‑blind crossover trial, a 200 mL anthocyanin‑rich blackcurrant beverage (≈711 mg anthocyanins) taken with a high‑fat meal improved flow‑mediated dilation and reduced agonist‑induced platelet aggregation and IL‑8 over 6 hours in healthy middle‑aged adults; specific circulating phenolic metabolites correlated with the responses.