A New York cardiologist wondered why he got a painful kidney stone, and the only risk factor he could find “was that I ate a lot of almonds,” he says on The Leftist Review. After further investigation, he asks if an almond industry group seems to recommend  limited daily consumption because this touted-as-healthy snack food — and ingredient in many other foods — might “even be causing thousands of us to form kidney stones and perhaps even worse, kidney failure?”