I use plain yogurt and add either agave or stevia as a sweetener. I don't use any artificial sweeteners, they taste awful and incredibly toxic. Same for drink mixes, crystal lite pur uses stevia, u can add lemon juice and stevia, and market pantry makes one that is stevia sweetened . Also, vitamin water zero is naturally sweetened with stevia. My fav is the squeezed lemonade
I just had my sleeve nov 5 w/ dr. Header. LOVED him! Frustrated w/ purée phase though, I think I may be eating too fast. Still get nauseous whenever I eat.