Ummm... no. Though occasional fasting might be a healthy thing to do (?).But I find that the homesteading community sometimes romanticizes subsistence farming in a rather alarming way. One book we read included the statement that the couple in question "Just don't eat that day," as their means of having a day off.
A friend of mine said his wife wanted "to have a garden." He was resisting, because he knew he'd end up doing most of the work. I told him, "Tell your wife that 'garden' is a verb, not just a noun."
I just ordered a copy of Eating on the Wild Side. And am looking into getting some purple seed potatoes.