
Whey vs Soy vs Casein vs Pea: Why the "Best Protein" Ranking Keeps Changing
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. ...