The present invention relates to a composition consisting of ellagitannins rich extracts originated from plant extracts of the Fagaceae family, for use in a method for preventing or treating sleep disorders, fatigue as well as for improving mood and raising energy. The composition of the invention is also used for improving sexual fitness or wellness of both sexes, the male sexual enhancement, the treatment of sexual dysfunction and the health of the sexual vascular system of both sexes.本發明係關於一種由富含鞣花單寧萃取物所組成的組成物,該萃取物係來自於殼斗科植物萃取物,該組成物係使用於預防或治療睡眠病症、疲勞以及改善情緒與增加活力的方法。本發明之組成物亦使用於改善兩性之性適應或健全、男性之性提高、性功能障礙治療以及兩性之性脈管系統的健康。