Your testies will not shrink unless you are introducing atificially high doses of test into your body. And even then its not that pronounced unless you run test or other componds similar, for a signifigant period of time. There is no food or legal sup that will ever have that effect on the male test production. Andro, m1t, and others like them did have a very small impact but, you cant even get those supps anymore due to the constant ever faster growing degradation of our legal rights as americans to do what ever to our bodies we see fit to due.