The addition of 1, 3, or
6 g of cinnamon to the diet led to significant
decreases in serum glucose levels after
40 days. Values after 20 days were
significantly lower only in the group receiving
6 g of cinnamon (Table 1). At the
levels tested, there was no evidence of a
dose response because the response to all
three levels of cinnamon was similar. Decreases
ranged from 18 to 29%. After the
subjects no longer consumed the cinnamon
for 20 days, glucose levels were significantly
lower only in the group
consuming the lowest level of cinnamon.
Glucose values in the three placebo
groups were not significantly different at
any of the time points