No, The Tenderloin does not have grocery stores on every block. They have liquor stores (corner stores, bodegas, whatever you wanna call them) that typically have a mediocre selection of fresh produce (if any at all).

It's not about having a large floor plan, it's about access to fresh food. The Bayview sees the same thing, although as SFGate points out Fresh and Easy did try. They failed too.

http://www.sfgate.com/bayarea/article/Tenderloin-struggles-t...