I've been dragging through my workouts fasted or not, thought maybe it was just being 60 years old. Tried this for the first time yesterday and was floored- calm energy, more alert- but not jittery at all. Made it through my workout and did an extra round. Another scoop this morning, same story- calm energy, clear mind. I'm sold, and a customer for life. Thank you Dr Ekberg! Oh, and the taste is fine, just a little mineral and slight salt.