Japanese have a fondness for slippery, slimy food that people from other food cultures often find puzzling. Sticky nattō (fermented soy beans), mozuku and tororo konbu (two kinds of slimy seaweeds) may take some getting used to, but once you do they can be quite addictive. In addition, these slippery foods are packed with many healthy qualities, including fiber, minerals and antioxidants.