A feeding assembly to fill capsules (3) with granules (2) , in particular microgranules (2), has a filling drum (5), which is provided with a plurality of fillers (8), each defined by a respective suction pipe (9), which can be connected to a pneumatic sucking device and has a lower end (12) to pick up/release the granules (2) the lower end (12) of each suction pipe (9) being closed by a closing element (13) provided with a plurality of openings (14), each designed so as to prevent the granules (2) from getting into the suction pipe (9).
