Due to a stubborn skin infection I was prescribed four rounds of antibiotics. Midway through the treatment I received an email from Dr Gundry about his pre/pro-biotic formula. It sounded amazing, so I ordered a three month supply. I'm almost finished with the first bottle, and it seems to have helped my digestive system recover from the antibiotic onslaught. However, I was extremely hopeful that I would experience the energy and vitality boost that was indicated as well. Unfortunately, I haven't felt any change in that area yet, but I will complete the three month trial before passing final judgment.