The full read
Strip away the "Protein Day" marketing and what's left is a plain, well-supported claim: eating enough protein helps build and recover muscle. The reference meta-analysis (Morton et al. 2018, British Journal of Sports Medicine, 49 RCTs, 1,863 participants) found that protein supplementation increases fat-free mass and strength during prolonged resistance training, plateauing around 1.6 g/kg/day (with a confidence interval reaching 2.2 g/kg/day). The effect is real but modest — roughly 300 g of extra lean mass over months — and training itself, not protein, is still the dominant driver. The post gives no numbers or sources, but the underlying idea — build meals around a protein source for recovery — matches what sports nutrition research has shown for years.
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