Whey Protein

Search “which protein powder is best” and you’ll get a different answer from every page. Whey is the king. No, casein for the overnight window. No, soy is just as good and cheaper. No, pea, because dairy wrecks your gut. Here’s why the arguments never resolve: they’re ranking proteins on a measurement that changes depending on how long you watch. Run a muscle-protein-synthesis test for three hours after a scoop and whey wins. Run the same test for six hours and casein catches up. Measure what actually leaves your gut and gets retained, and pea ties milk protein outright. Every one of those studies is real, well-conducted, and correct. They just answer different questions. ...

Walk into any supplement aisle right now and you’ll see a new powder pushing past the whey tubs: beef protein isolate — hydrolyzed beef protein, in the same tub format as your whey. The pitch is smooth — “whey bloats you, beef doesn’t,” “whey is dairy, beef is paleo.” And in the last year the “beef vs whey protein” search has surged, because a whole generation of lifters is suddenly convinced whey is the problem. ...