If you want to improve your performance in cross country races or marathons, you should also take a look at your optimal nutrition in addition to training diligently.
Here you can download two PDF documents explaining pre-race carb loading and a sample nutrition plan.
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INSTITUTE FOR SPORTS NUTRITION e.V.
In der Aue 30 - 32
61231 Bad Nauheim
Phone: +49 6032 71200
Fax: +49 6032 71201
www.isonline.de