For purveyors of meat, eggs and cheese, for instance, life has indeed been good lately. After years of being slammed for their high fat and cholesterol content, those foods now find themselves all but forgiven simply because they are low in carbs.
At the same time, marketers of breads, rice, pasta, legumes and other carb-rich foods, who thought they had settled into a comfortable seat at the base of the government's Food Guide Pyramid, now must feel as though the mysterious power of the pyramid has been unleashed upon them in the cruelest of ways.