Use a sugar-free RED BULL instead as it won't spike insulin and will give you a great kick.
Just get on a fucking treadmill and stop making excuses. Jeez, looking for a 'stimulant' free fat burner.?!?!? WTF. "Hey guys, I heard caffine is bad, so I'd rather dick w/ my thyroid or f**k up my Kreb's cycle. So which one do I go with?" You guys crack me up.
you know what, do whatever the f**k you want. You're too dumb to help. Peace.
You're the dummy here, not "Your the dummy here". Ironic, huh?