i lost 18 lbs. over a 6 mo. period according to my doctor,how fast i don't know since i only go every 6 mos. and that is how long i have been vaping,,she wanted to know what i did to loose that much weight,,told her that i only quit smoking ,,,,she asked me if i was eating right,,,i told her i was eating like i always have except i avoided any thing with corn sugar,corn syrup,fructose in it.