It is a criticism that just won’t seem to go away. Doggedly persistent acolytes of “conventional” agriculture continue (and with good standing) to remind us that there is little to no scientific research to support many of the touted benefits of vegetables produced with organic, or so-called “natural systems” methods. You’ve heard the claims—fresher is more nutritious, heirloom varieties are more nutritious, unpasteurized milk is more nutritious. That these claims are largely unsubstantiated is unfortunate, yet undeniable, and the result is just more uncertainty about what we should eat. (more…)