In addition to the extensive Twitter discussion linked above, for more contrarian discussion of nutrition, obesity and chronic diseases, don't miss:

• Obesity Is Always and Everywhere an Insulin Phenomenon
• Jason Fung: Dietary Fat is Innocent of the Charges Leveled Against It
• Faye Flam: The Taboo on Dietary Fat is Grounded More in Puritanism than Science
• Sugar as a Slow Poison
• Kearns, Schmidt and Glantz—Sugar Industry and Coronary Heart Disease Research: A Historical Analysis of Internal Industry Documents
• Salt Is Not the Nutritional Evil It Is Made Out to Be
• Whole Milk Is Healthy; Skim Milk Less So
• How the Calories In/Calories Out Theory Obscures the Endogeneity of Calories In and Out to Subjective Hunger and Energy
• Putting the Perspective from Jason Fung's "The Obesity Code" into Practice
• Julia Belluz and Javier Zarracina: Why You'll Be Disappointed If You Are Exercising to Lose Weight, Explained with 60+ Studies (my retitling of the article this links to)
• Meat Is Amazingly Nutritious—But Is It Amazingly Nutritious for Cancer Cells, Too?
• Diana Kimball: Listening Creates Possibilities
• On Fighting Obesity
• Analogies Between Economic Models and the Biology of Obesity