I'm Gary Taubes, science writer and author of "Sweet Little Lies" about the sugar industry -- AMA

I'm Gary Taubes, author of the bestsellers "Good Calories, Bad Calories" and "Why We Get Fat." As a longtime science journalist, I focus mainly on scientific and nutritional controversies. My latest piece, "Big Sugar's Sweet Little Lies," is featured at MotherJones.com this Halloween morning. Cristin Kearns Couzens and I use internal documents to show how the sugar industry has managed to dilute the scientific evidence implicating sugar in a host of deadly diseases. Read the story here, and ask me anything about dietary sugar, fat, cholesterol, etc. I will be on this afternoon at 3 p.m. East Coast time to answer your questions live.