On this episode of Bulletproof Radio, we have carefully selected the best questions from Facebook, Twitter, and the Bulletproof® Forums for another awesome Q&A. Join Dave and Zak as they answer questions about the benefits of nicotine on brain function and fat loss, getting the best source of caffeine from Yerba Mate or coffee, and bulletproof cooking along with other great questions that our listeners have submitted to Bulletproof Radio. This episode has a ton of great information all condensed into one, enjoy!