A method for obtaining a food product from a wet waste block obtained from a production process for producing products such as beer, whisky, vodka, juniper berry, agave, liqueur or citrus fruit-based distillate, cider, sake, soy sauce and the like, comprising the steps of: adding an enzyme to the waste, an enzyme adapted to decompose possible gluten residues in the material and to act the enzyme for a period of time between 15 and 30 minutes; boiling the waste for at least 20 minutes; the waste materials are cooled and centrifuged, so that most moisture in the waste materials is eliminated; the material is dried with a radiofrequency dryer at a temperature between 70 DEG C and 100 DEG C for a time between 60 and 120 minutes in order to obtain a product having a relative humidity between 14% and 2% at the end of the drying. A food product comprising between 1% and 60% by weight of at least one powder obtainable from the waste obtained from the production process for producing beer, whisky, vodka, juniper berry, agave, liqueur or citrus fruit-based distillate, cider, sake, soy sauce and the like, and between 40% and 99% by weight of at least one cereal flour, vegetable flour or animal flour.