Minecraft wiki entry for Suspicious_Stew, associated text: To eat suspicious stew, press and hold use while it is selected in the hotbar. Eating one restores 6 () hunger and 7.2 hunger saturation and gives a few seconds of a status effect that varies depending on which flower was used to craft it. The effect is not displayed in the tooltip, texture, etc., meaning that the player cannot know in advance what the effect is without knowing which flower was used.