Why doesn't oxidation of fat necessarily mean you're losing total body fat?

Extra Virgin Olive Oil

What is "extra virgin” olive oil, and what do you look for when purchasing it?

Peter's Book

Do you have any update on Peter's book?

Electrolyte supplements

After your interview with Rick Johnson, have you changed the way you look at sodium (or electrolyte) supplementation? Considering that a “high” dose of sodium all at once will increase your serum osmolality and cause all of the downstream effects that he talks about, I’m wondering if some electrolyte supplements are doing more harm than good at their recommended doses.

Zone 5, etc?

What is Peter's approach to Zone 5 training? What about other "anaerobic" training protocols?