Yum! Who knew that staying healthy could taste so good?! attune Probiotic Chocolate Bars are filled with beneficial bacteria that improve digestion, immune function, and nutrient absorption by helping to rebalance your digestive system. Be sure to keep these bars at ambient temperatures or chilled to best ensure the efficacy of the probiotics. There are 3 delicious flavors, Milk Chocolate Crisp, Mint Chocolate, and Dark Chocolate, with 80-90 calories per bar. They taste like a typical chocolate bar, yet these special bars have a little extra to help keep you healthy.