Protein Powder is a HIGHLY processed food.  Over consumption of foods especially processed foods and dairy commonly leads to food intolerances.   This is a highly researched fact...if you google you will see tons of research studies.
I always recommend rotating your protein sources....chicken, fish, turkey, pork, beef, bison.....there are tons of options and once you get use to food prepping its easy
that said if you are going to rely on 2, 3 or more shakes a day, i would highly recommend you invest in multiple sources or at least rotate....whey, vegan, i believe Redcon and Allmax have mixed protein products that use salmon, beef, egg, etc