So if you add carrots into concrete with poop, it will become even more stronger?

https://www.dezeen.com/2018/08/09/carrots-concrete-stronger-lancaster-university-technology/

Concrete mixtures could be strengthened by adding nanoparticles extracted from carrots and other root vegetables, research currently underway at England's Lancaster University suggests.

Preliminary tests by the university's engineers found that "nano platelets" sourced from the fibres of these vegetables "significantly improved" the strength of concrete — and at a low cost.