Astaxanthin: the secret weapon against soccer fatigue?

This study looked at whether taking astaxanthin, a natural supplement, for four weeks could help soccer players keep up their skills even when tired. Thirty healthy male college soccer players took either astaxanthin or a placebo. After four weeks, they did a very hard exercise routine, and researchers tested their passing, sprinting, and jumping abilities. The goal was to see if the supplement could lessen the drop in performance caused by fatigue.