alexa Protein added to a sports drink improves fluid retention.


Journal of Food Processing & Technology

Author(s): Seifert J, Harmon J, DeClercq P

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Abstract The purpose of this study was to compare fluid retention of carbohydrate plus protein, a carbohydrate-only, and water following 2.5\% body weight (BW) loss. Thirteen subjects dehydrated to 2.5\% of BW, then ingested a CHO (6\%) plus protein drink (1.5\%; CP), a 6\% CHO drink, or water (WA) at a volume equal to BW loss during a 3-h recovery. Fluid retention was significantly greater for CP (88 +/- 4.7\%) than CHO (75 +/- 14.6\%), which was greater than WA (53 +/- 16.1\%). Serum and urine osmolalities were greater for CP (284.7 +/- 5.0; 569.4 +/- 291.4 mOsm/kg) than CHO (282.6 +/- 5.2; 472.9 +/- 291.5 mOsm/kg) which were greater than WA (280.6 +/- 5.9, 303.7 +/- 251.5 mOsm/kg). Results indicate that fluid retention for CP was 15\% greater than CHO and 40\% greater than WA. Water ingestion led to a dilution of the serum and resulted in only 53\% fluid retention.
This article was published in Int J Sport Nutr Exerc Metab and referenced in Journal of Food Processing & Technology

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