Fecha de publicación: 22/05/2003 Fuente: WIPO "royal jelly" A Fomes japonicus extract is prepared by extracting Fomes japonicus with a mixture of honey and vinegar, heating the resulting extract to a temperature of not less than 95° C. and then filtering the heated extract. The Fomes japonicus extract can be diluted with water to give a drink such as a health beverage. Moreover, the addition of royal jelly to the extract permits the preparation of a royal jelly-supplemented drink additionally having nutritive and restorative effects.