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The anabolic window: do you need protein right away

Updated: November 2, 2026

The '30-minute anabolic window' is overstated.

  • What matters most is daily protein (1.4–2.0 g/kg for active people) spread over 3–5 meals (0.3–0.4 g/kg each, usually 20–40 g).
  • If your meals before and after training are no more than 4–6 hours apart, you're covered.
  • Training fasted in the morning? Then eating soon after does help.

A shake after training is convenient, but having it 2 hours later won't cost you results.

General sports-nutrition guidance, not medical advice. If you have a condition, are pregnant or take medication, check with your doctor first.

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The anabolic window: do you need protein right away — Advice centre | NUTRIZONE