Chromium picolinate
"Working on a diet program, the doctor gave this vitamin, I noticed low sugar, at times, my sugar went far too low, nearly causing me to pass out. Realizing what I am taking new, I reviewed information right here and so now I know to lower my insulin. Contacted my endocrinologist, suggested to test more frequently. Hopefully, if I do lose weight, want to be off insulin altogether.  Thanks for the information"