I TOTALLY believe in it-- I take 2 teaspoons with water every night and every morning. The biggest thing I've noticed is it cured my insomnia and I sleep super soundly and wake up refreshed. I know it's made a lot of other differences in my life, but I've made so many other positive (health) changes at the same time that I started taking ACV, so it's hard to pinpoint if the ACV is responsible for any one benefit in particular...