My stomach felt irritated for a couple of months and I started having bad breakouts on my forehead. I took probiotics and decided to try this prebiotic supplement to make the probiotics work. I've noticed the difference almost right next day. I could eat without pausing due to stomach irritation. In a couple of days my appetite was back to completely normal like it used to be. Surprisingly it gave me my energy back as well somehow. Now I wake up without any dullness.