THC is a cannabinoid that promotes the appetite and as such can bring about the onset of munchies whereas THCV as a cannabinoid is an appetite suppressant that removes the urge and needs of a person to eat all the time. This means that for a cannabis strain to be very beneficial in dealing with obesity, it needs to contain a good concentration of THCV. THCV, however is not the only cannabinoid that can help to reduce obesity in cannabis, this effect is also achieved by cannabinoids that improve sleep functions.