Enkoujust experienced biting into a spoiled slimjim and i... oh god... i feel like that's gonna give me a debuff
Matt@sirenoa https://runescape.wiki/w/Kebab#Effect a rare random effect of some specific food items in runescape literally do this
Kebab
A kebab is a food item that heals a random amount of life points based on maximum life points, and may raise Attack, Strength, and Defence stats temporarily, or decrease any stat. Kebabs can be bought from Karim in western Al Kharid for 1 coin each. Additionally, members can purchase it from Kjut in Keldagrim south-east of the north bridge.
@Bluebasaur That tasted very dodgy. You feel very ill. Eating the SlimJIm has done damage to some of your stats.