What the recovery window actually requires
The classic idea of a narrow anabolic window has been substantially revised. Current evidence suggests that getting an adequate protein dose, often cited around 20 to 40 g, within a few hours of training supports muscle repair, and that total daily protein intake matters more than precise timing. Carbohydrate replenishes glycogen, with urgency depending on how soon the next hard session is.
Fluid and electrolyte replacement is the most time-sensitive piece, since rehydration restores the losses that immediately affect how you feel and perform.
When timing tightens and when it relaxes
Timing matters more for athletes training the same muscle group again within roughly a day, or doing two sessions in a day, where rapid glycogen restoration is useful. For people training once daily with several hours between sessions, hitting daily totals comfortably covers recovery.
This is general educational information, not medical advice. Individual needs vary with training load and goals, and anyone with relevant medical conditions should plan recovery nutrition with a qualified professional.