i could not do the shakes so i use the proslam 45 protein bullets. taste like a melted popsicle. so much easier for me to take! they are almost 4 dollars a tube but they have 45 grams of protein in them and you only have to drink them once a day and get the rest of the protein from other sources. so far in day 7 of my liquid diet i have dropped 16 pounds!