JAMA's Obesity Issue: Old News and New Ideas

January's Journal of the American Medical Association is entirely devoted to obesity:

Six years ago, when JAMA last published a theme issue on obesity, there was optimism that progress was being made in preventing and treating obesity. As time has passed, so too has the optimism, as reports continued to show that the prevalence of obesity was increasing and, most important, rapidly increasing in children.

This issue vividly illustrates modern medicine's cultural divide between failed dogma and new (or at least newly-rediscovered) ideas regarding obesity, diet, and metabolic health.

Let's start with the first opinion piece, Counting Calories as an Approach to Achieve Weight Control: