Fourteen healthy subjects were assessed in a crossover trial. A standard 75 g oral glucose tolerance test
(OGTT) was administered together with capsules containing a placebo or C. longa. Finger-prick capillary and
venous blood samples were collected before, and 15, 30, 45, 60, 90, and 120 min after the start of the OGTT to
measure the glucose and insulin levels, respectively