00:00Replacing 50% of exercise fluid loss produced similar early blood amino acid responses to 100% replacement.
00:07But what happened after the protein shake leaves a bigger question.
00:11Researchers reporting in Nutrients, a nutrition journal, studied 13 healthy young men.
00:16None were professionally trained.
00:18And each exercised under different water replacement conditions.
00:21Those separate trials compared no water replacement, partial replacement, and full replacement.
00:27Afterward, each drank 45 grams of whey protein while researchers tracked their blood.
00:33They measured amino acids, the building blocks of protein, to compare responses.
00:38Without fluid replacement, the men lost about 2.2% of their body mass.
00:43And at 60 minutes, several amino acid levels were lower than in either fluid replacement trial.
00:49Yet partial and full replacement produced similar early blood responses.
00:53But researchers did not directly measure protein absorption or muscle protein production.
00:58So the shake findings show an early blood response, not proven muscle recovery.
01:03Disclosure.
01:04This video contains stock footage and content created or enhanced using AI-assisted tools.
