March 30, 2021: An Addendum to the Green Tea Extract Question

Regarding the previous Question of the Week on Green Tea/extract (available on the Tennessee Poison Center website, Health Care Professional tab,  3/12/2021):  Dr. Ann Kavanaugh-McHugh, Associate Professor of Pediatric Cardiology, sent us a monograph about polyphenol rich food ( of plant origin with antioxidant properties-examples-tea, cocoa, fruits, and berries, some vegetables),  This monograph is distributed to pregnant patients.  There are concerns polyphenols can play a part in  premature closure of the ductus.  Note that Green Tea is on the list.  Thanks again to the experts that send their comments. 


I am interested in any questions you would like answered in the Question of the Week.  Please email me with any suggestion at


Donna Seger, MD

Executive Director

Tennessee Poison Center

Poison Help Hotline: 1-800-222-1222