Protein: miracle macronutrient or overhyped fitness buzzword? In this episode, we break down what protein actually does—from repairing tissues to fueling growth—and why the World Health Organization sets the daily baseline at 0.83 grams per kilogram of body weight. We unpack why certain groups, from teenagers to new mothers to the elderly, often need far more, and how higher intakes paired with resistance training can build muscle or support weight loss. Supplements like whey powders make hitting those targets easy, but whole foods offer valuable micronutrients without the additives. And despite the booming market for shakes, bars, and “high-protein” everything, most people eating a Western diet already get plenty. So how much protein do you really need—and when does more stop being better?

https://www.economist.com/science-and-technology/2025/06/06/how-much-protein-do-you-really-need