Originally Posted by asnoman
I never heard of any food that can any effect on penis size, but I read somewhere smoking can shrink erect size by 1/2”. There is some controversy that steroids, too have negative effect on its size. Sorry I can’t give the reference of it. So, please don’t take my information as scientific fact.
Smoking constricts blood vessles. The penis relies on blood vessles to become engorged during an erection. Steroids act as a substitute for the hormone testosterone, and if you are manually adding a surplus of this hormone into your body, the demand for production of this hormone biologically is put to a hault (the brain receives the information that there is enough testosterone, so hold off on making more). Since testosterone is primarily made in the testicles, and the demand for it has been put to a hault, the testicles can shrink.