Lacking both High Fat Index and Muscular Index, these tropes are about people having a narrow physique. Can overlap with Skeletal Tropes.
- Big, Thin, Short Trio
- Chubby Mama, Skinny Papa
- Fat and Skinny
- Geek Physiques
- Hollywood Thin
- Lean and Mean
- Muscle Angst (male version)
- Noodle People
- Nothing but Skin and Bones
- Weight Woe
