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Int J Sport Nutr Exerc Metab. 2013 Dec;23(6):593-600. Epub 2013 May 20.

Beer as a sports drink? Manipulating beer's ingredients to replace lost fluid.

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  • 1Griffith Health Institute, Griffith University, Queensland, Australia.

Abstract

PURPOSE:

To investigate the effect of manipulating the alcohol and sodium content of beer on fluid restoration following exercise.

METHOD:

Seven male volunteers exercised on a cycle ergometer until 1.96 ± 0.25% body mass (mean±SD) was lost. Participants were then randomly allocated a different beer to consume on four separate occasions. Drinks included a low-alcohol beer (2.3% ABV; LightBeer), a low-alcohol beer with 25 mmol×L-1 of added sodium (LightBeer+25), a full-strength beer (4.8% ABV; Beer), or a full-strength beer with 25 mmol×L-1 of added sodium (Beer+25). Volumes consumed were equivalent to 150% of body mass loss during exercise and were consumed over a 1h period. Body mass and urine samples were obtained before and hourly for 4 hr after beverage consumption.

RESULTS:

Significantly enhanced net fluid balance was achieved following the LightBeer+25 trial (-1.02 ±0.35 kg) compared with the Beer (-1.59±0.32 kg) and Beer+25 (-1.64 ±0.28 kg) treatments. Accumulated urine output was significantly lower in the LightBeer+25 trial (1477±485 ml) compared with the Beer+25 (2101± 482 ml) and Beer (2175 ±372 ml) trials.

CONCLUSION:

A low alcohol beer with added sodium offers a potential compromise between a beverage with high social acceptance and one which avoids the exacerbated fluid losses observed when consuming full strength beer.

PMID:
23690556
[PubMed - indexed for MEDLINE]
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