Dietary supplementation of 100 g butter in 20 healthy male volunteers for 7 days was found to enhance platelet aggregation to a significant extent (P < 0.001). Addition of 5 g of dry ginger in two divided doses with fatty meal (in 10 individuals) significantly (P < 0.001) inhibited the platelet aggregation induced by ADP (adenosine diphosphate) and epinephrine, while in the placebo control group (10 individuals), there was no significant alteration in platelet aggregation. Serum lipids, however, remained unchanged in both the groups.