I have trouble with the protein shakes as well. I bought the unflavored protein isolate (I like the isopure unflavored whey protein isolate) from Amazon. For 1 scoop, you get 25 g protein. You can add it to anything. Yogurt, soup, smoothie, cottage cheese... I sometimes make my own shake with 1 scoop protein, 8 Oz either skim, coconut, or almond milk, a little vanilla extract, a tsp cocoa, sweetener, and a couple ice cubes... Have to wait a few minutes for the foam to settle it, but the protein powder has no flavor or aftertaste. That is my go to rescue to get the protein in when I'm struggling.