A healthy human body contains an adequate amount of : -iron to make a three inch nail. -carbon to produce 1,000 pencils. -potassium to trigger a toy cannon. -sulphur to kill all fleas on an average dog. -phosphorous enough to make 8 match heads. -fat to produce 7 bars of soap.

This statement lists various elemental contents found in an average human body. These quantities are approximate but generally accurate - the human body contains enough iron for a small nail, carbon for many pencils, potassium, sulfur, phosphorus for match heads, and sufficient fat to produce soap. These comparisons help visualize the elemental composition of the human body.