When my work place closed down and I started working from home, I decided to give up caffeine to see if that made any difference in my Insomnia. It did not, but giving up soda (I do not like the taste of coffee at all) actually helped me lose weight. I return full time to my office on Tuesday, so if I decide I need a little caffeine I have decided I will use the caffeinated water flavoring so I do not go back to drinking soda again.