I am 25 years old and on a diet. I am very fond of drinking vivanno at starbucks. I have heard that they are healthy and wouldn’t effect much of my diet. I usually have it every day for my breakfast on my way to work,So can anyone give Starbucks nutritional value of Vivanno drinks for a person on diet? What is its nutritional value? Which flavor is best and lowest in calories? Please help me out.