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You are speaking of Ernest Hancock Libertarian?
Not too familiar with him, and Goolag absolutely refused to find the quote. (i mean it would prefer you to look up Ernest Hemingway)

But other search engines pull up interviews with him about food.

Yes, Ernest Hancock the libertarian. He says "It's a food thing" about 21 times every episode of his radio show. He just wants it to sink in and for people to get prepared for a possible society breakdown and food shortages... that or unhealthy food directives degrading the food supply into basically poison. I am open to both of these possibilities. Time will tell.