Die Erfindung betrifft eine Vorrichtung zur Behandlung von Übergewicht bei Säugern, insbesondere beim Menschen, wobei die Vorrichtung ein Generatormodul zur Erzeugung eines pulsierenden Magnetfelds enthält.The device i.e. neckband (2), has coils (5) provided for generating a magnetic field, where the device is attached to body of mammals by using fastening elements (1, 9) e.g. press button or Velcro(RTM: hook and loop fastener). The magnetic field is generated with a frequency of 14 Hz. An electronic device controller (4) allows control and/or programming of the field based on activation and deactivation of the field, regulation of activation time, -duration and/or -cycles, regulation of magnetic field strength and/or flux density or regulation of frequency of magnetic oscillations.