Protein after training: how much, and does the timing matter?

The daily number comes first

For someone training with weights or doing serious endurance work, sport-nutrition guidance generally lands in the region of 1.6 g of protein per kilogram of body weight per day, with a spread either side depending on who is writing and what the goal is. For a 70 kg person that is roughly 110 g a day from all sources, and a powder is a convenient way to close a gap rather than a category of its own.

Timing only matters once the daily total is there. Before that it makes no difference.

What happened to the window

The idea that muscle protein synthesis is only available for thirty minutes after training has not held up. Sensitivity to protein stays raised for many hours afterwards, and a meal before training is still circulating during it. What the research does support is distribution: a portion of protein at several points across the day, rather than one large evening serving.

In practice, eat a normal meal within a couple of hours of training and stop treating the shaker as a deadline. Convenience is a good reason to use a powder.

Reading a protein label

Two figures decide value: protein per scoop, and the weight of the scoop.

Protein per scoop, against scoop weight

24 g protein in a 30 g scoop is 80% protein. 17 g in the same scoop is not.

Concentrate, isolate, hydrolysate

Each step is more processed, more expensive and lower in lactose. Isolate is the usual pick for lactose sensitivity.

Plant blends

Pea and rice together cover the amino acid profile better than either alone; check the total per scoop, which is often lower.

Added creatine or amino spikes

Read the panel. Filler amino acids inflate a nitrogen-based protein figure without matching food protein.