Abstract: The present invention relates to a base powder for preparing functional beverages, soft drinks or an additive for food products, which is made with red raspberry from Rubus idaeus and with clinoptilolite zeolite contained in the ZAM® (activated micronized zeolite). The powder is prepared with dehydrated fruit juice. The raspberry juice extract is obtained by slowly heating (without exceeding 70° C.) a pot containing the ground fruit or a receptacle with fruit, using the bain-marie method, without exceeding 70° C. The juice is stabilized, dehydrated, optionally mixed with sugar substitutes, sweeteners or fiber, and, lastly, homogenized. The object of the present invention is to provide a food-grade base powder of natural origin that is totally different from current presentations of red raspberry on the market.