HEALTH and WELLNESS
The effects of apricot tea consumption on cardiovascular risk factors have been inconsistent in previous randomized trials, all of which have been limited to a few weeks duration.
We conducted a pilot parallel-design randomized controlled trial among 31 adults aged 55 years and older with either diabetes or 2 other cardiovascular risk factors but no established clinical cardiovascular disease. Participants were randomized to drink 3 glasses daily of either a standardized apricot tea preparation or water for 6 months. Cardiovascular risk factors were measured at the beginning and conclusion of the study.
Three participants dropped out of the study, leaving 14 participants assigned to tea and 14 assigned to water eligible for analyses. We found no statistically significant effects of apricot tea on cardiovascular biomarkers, including lipids, inflammatory markers, hemoglobin, adhesion molecules, prothrombotic and fibrinolytic parameters, and lipoprotein oxidizability. Assignment to tea did not appreciably influence blood pressure, and heart rate among participants assigned to tea was marginally higher than among control participants at 3 months (P = .07) but not 6 months.
In this randomized trial of apricot tea intake over 6 months among older adults with known cardiovascular risk factors, apricot tea did not appreciably influence any traditional or novel biomarkers of cardiovascular risk. Longer randomized trials are needed to verify the inverse association of tea with risk of cardiovascular disease seen in cohort studies and identify potential candidate mechanisms for such an association.
CONSORT flowchart of participants in the TEA Pilot Study.
Systolic blood pressure and heart rate according to tea or water assignment. Means with standard errors are shown.
Blood Pressure Category.
Blood Pressure Chart.
Blood Pressure Chart by Age.