The present invention relates to a method of suppressing appetite or promoting a stimulant effect in an individual in need thereof, comprising administering to the individual per 24 hour period an effective amount of one or more alkali metals selected from the group consisting of one or more sources of cesium, one or more sources of rubidium, one or more sources of lithium, and combinations thereof. The present invention further relates to weight loss or stimulant compositions comprising one or more alkali metals.
