Atossa Araxia Abrahamian claims that "[e]very dietary preference has its corresponding political stereotype." For libertarians, it's the paleolithic diet:
Paleo-Libertarian logic maintains that the U.S. government is to blame for obesity, heart disease, diabetes, and dozens of other ills by virtue of telling us to eat the state-subsidized fruits of Big Agriculture’s labor. It says the USDA’s nutrition guidelines were created with the food lobby, not the human body, in mind.
These are by no means implausible or even particularly radical claims. Some socialists and environmentalists have come to the same conclusions, at least nutritionally speaking. Still, this admittedly healthy distrust of government — not to mention the adoption of a diet that is the complete antithesis of the USDA’s recommendations — is innately libertarian. Gary Taubes, a science writer best known for his anti-sugar crusades, is widely cited in Paleo circles. When Reason magazine asked him why so many libertarians are drawn towards Paleo, Taubes responded that perhaps they simply "like the idea that government agencies and federal agencies can be just dead wrong."
The Dish 