Originally Posted by Craig Van De Walker
I find it interesting that the assumption is made that insulin is being released.
Could some things like this just increase the body's glucose uptake independent of insulin?
Well, just reading the paragraph quoted from the original study, it says that not only did blood glucose levels go down in the tea-drinkers as compared to the other liquid-drinkers, blood insulin levels were higher
. This suggests that the tea stimulated the pancreas to put out more insulin, which lowered the blood glucose level.
If black tea had primarily stimulated cellular uptake of glucose, you'd expect the blood insulin levels to go down.
But even that's a pretty big leap to conclusion from just the bit of study reported.