Michael Pollan's essay has certainly kindled a wide range of commentary from the blogosphere. For your reading pleasure:
Hard to Swallow Some of Pollan's "Unhappy Meals"
Waisted In Wasteland (Low-Carb):
What Shall We Eat Today?
The Last Atkins Dieter (Low-Carb):
A National Experiment in Mainlining Glucose
Adam Campbell (Fitness/Controlled-Carb):
An Eating Philosophy You Can Live (Well) By
NY Times: Michael Pollan on Nutritionism
Eat Food: It's like you have to spell it out for these people
It's All One Thing (Vegetarian/Vegan):
The wisest advice about eating
Marc Joseph Nutrition (general nutrition):
How Nutritional Science Has Ruined the Way We Eat - Michael Pollan
Joe Pastry (cooking/baking):