The present invention relates to an edible foam product that can advantageously be used in the treatment or prevention of obesity. More particularly, the present invention provides an edible foam product of pourable or spoonable consistency having an overrun of at least 100%, said foam product containing at least 60 wt. % of water, from 1 to 7 wt. % of protein and from 1 to 20 wt. % of carbohydrates, and further being characterized by a high in-mouth stability as evidenced by a reduction in overrun of less than 35% under in-mouth shear conditions and a high gastric stability as evidenced by a t½>30 minutes, t½representing the time needed to achieve a reduction in overrun of 50% under gastric conditions. Another aspect of the invention relates to the use of an edible foam product in the treatment or prevention of overweight or obesity, said edible foam product having a pourable or spoonable consistency, an overrun of at least 100% and a high gastric stability as evidenced by t½>30 minutes. Yet another aspect of the invention concerns a pressurized container holding an edible liquid composition and a propellant, which liquid composition can be released from the container by activating a valve to produce an edible foam product having a pourable or spoonable consistency, an overrun of at least 100% and a high gastric stability as evidenced by t½>30 minutes.