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Debunking Matrix
The claimEvidence B · meta-analysis

You must eat protein within 30 minutes of training or the session is wasted

The evidence

The real anabolic window is 24-48 hours after training; 24-hour protein total matters far more than a 30-minute clock.

The mechanism, in brief

How much protein does someone who lifts need each day? The most reliable answer is about 1.6 g per kilogram of body weight, and up to 2.2 g for people who want to squeeze out every bit of muscle gain. The range comes from pooling dozens of strength-training trials: gains level off around 1.6 g, and eating more adds…

Sources (2)
  • Morton, R. W., et al. (2018). A systematic review, meta-analysis and meta-regression of the effect of protein supplementation on resistance training-induced gains in muscle mass and strength in healthy adults. British Journal of Sports Medicine, 52(6), 376–384.
  • Phillips, S. M. (2016). The impact of protein quality on the promotion of resistance exercise-induced changes in muscle mass. Nutrition & Metabolism, 13, 64.
Go deeperRead the full mechanism →

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