Subjects will be enrolled into two groups in a crossover fashion upon obtaining written informed consent. The two intervention groups include (1) chamomile tea intake and (2) chamomile extract intake. Subjects will consume a single preparation of chamomile tea or extract capsule, and partake in a minimum of three days washout period between interventions. Screening assays of coagulation will be obtained immediately before the ingestion of chamomile, two hours after ingestion, and four hours after ingestion over the course of a single day.
Chamomile may possess anticoagulant effects based on the presence of coumarin-like compounds within the flower. This randomized complete crossover study will investigate the impact of chamomile ingestion acutely on coagulation.