The invention relates to a novel insoluble powder of plants of the genus Agave azul weber tequilana, characterized in that it includes: insoluble dietetic fiber from the heart of the agave, total sugars, calcium, plant protein, fat, sodium, zinc, ash and other minerals. The invention also relates to a method for obtaining said powder, including the following steps: 1. agave hearts are extracted from agave in the ground (2) the fleshy leaves are cut away, leaving the heart (3) the sap is extracted from the uncooked hearts and the resulting fiber or pulp separated, this being very important since the sap may produce inulin by different processes, there is no relation with the insoluble powder fiber, (4) the resulting pulp is dried in the sun for 24 hours (5) the pulp is sequentially ground until it has been reduced to a very fine powder, preferably between 0.5 and 10 micrometers and (6) the agave powder is sanitized with ethylene oxide gas in order to reduce the microbial counts and thus produce a product suitable for consumption.La presente invención trata de un novedoso polvo insoluble de plantas del género agave azul weber tequilana caracterizado porque comprende: fibra dietética insoluble de la "piña" del agave, azucares totales, calcio, proteína vegetal, grasa, sodio, zinc, ceniza y otros minerales. La invención también trata de un método para obtener dicho polvo y pasa por las siguientes etapas: 1. Extraer "piñas" del agave de la tierra, 2. Cortar las pencas, dejando la "piña" sola, 3. Extraer jugo de las "piñas" crudas y separar la fibra, residuo o vagazo resultante, siendo de suma importancia dado que el jugo que puede mediante diversos procesos generar inulina es irrelevante y sin relación alguna con la fibra en polvo insoluble, 5. Secar el bagazo resultante al sol durante 24 hrs., 6. Moler el vagazo secuencialmente hasta reducirlo en un polvo muy fino preferentemente entre 0.5 a 10 micras, 7. Sanitizar el polvo de agave con gas óxido de etileno para reducir
