By the time my preop diet ended and I had my band put in I was so over the Protein Shakes. My doctor told me about Boost, its sold at walgeens. Its a high Protein Shake that comes in 8 ounces, has 15 grams of Protein, and it tastes like chocolate milk. It goes down easy, especially when cold. I sipped at that stuff along with Water throughout the day for the first few days. Good luck to you and wish you the best.