Project Number: 1235-51530-008-13
Project Type: Trust

Start Date: Oct 01, 2005
End Date: Sep 30, 2010

Objective:
The objective of this cooperative research project is to determine if oolong tea or oolong tea supplemented with catechins or polyphenols affect substrate oxidation and glucoregulatory control in obese and normal-weight men relative to caffeinated water or water alone.

Approach:
Obese and normal-weight human volunteers will consume control (water, water with caffeine) and test (oolong tea and oolong tea components) beverages as part of a controlled diet. During each feeding period, subjects will eat foods prepared for them and consume one of the control or test beverages. Subjects will consume each treatment in random order. On day 5, subjects will stay in a room-sized calorimeter for 23 hours for measurement of energy expenditure and substrate oxidation. Blood will be taken for measures glucose and related factors. Body composition will be measured prior to each calorimeter measurement.