3,959
Participants
Start Date
August 26, 2016
Primary Completion Date
December 31, 2020
Study Completion Date
December 31, 2020
Cocoa Extract
2 capsules each day containing a total of 500 mg cocoa flavanols, including 80 mg (-)-epicatechin, and 50 mg theobromine
Cocoa Extract Placebo
Cocoa extract placebo
Multivitamin
Multivitamin
Multivitamin placebo
Multivitamin placebo
Columbia University Irving Medical Center, New York
Brigham and Women's Hospital, Boston
Brigham and Women's Hospital
OTHER
Fred Hutchinson Cancer Center
OTHER
Mars, Inc.
INDUSTRY
Columbia University
OTHER