Ive had the same problem with protein shakea i am now 12 days post op and finally have found a BIT of a solution , i discussed with my dietican alternatives & she had suggested the isopure juices instead of milk based protein, they have 40 grams of protein in them there is still that whey taste to them but its less severe then the milk based. Also they sell unflvored protein mix that she mixed up for me with crystal light ice tea which also wasnt to bad, alot better then the milk!