It varies on how it is used. It is like a stronger version of coffee. Traditional Chinese Medicine actually prescribes it, as well as the husks of the nut, as a medication to move Chi and aid digestion.
If you are an old person out of energy with a GI tract that is not moving and making you sick, and you are sitting on the couch all day, a few weeks of it can clear out your intestine, and give you energy as if you were getting shots of adrenaline.
If that gets you moving and at the end of the few weeks of taking it you are active physically and moving about, using your muscles and Cardiovascular system, taking it can be very beneficial.
But there are people who get addicted and end up taking so much they turn their teeth brown, and they cannot live without it.
“ If you are an old person out of energy with a GI tract that is not moving and making you sick, and you are sitting on the couch all day, a few weeks of it can clear out your intestine, and give you energy as if you were getting shots of adrenaline.”
___________________
Sounds interesting. You just described someone I know who could use those benefits immensely.