For today’s edition of Dear Mark, I’ve got three questions from readers. First is an interesting one from Brandon, who’s concerned about the nighttime consumption of carbohydrates spiking insulin enough to interfere with the growth hormone release that occurs during slow wave sleep. Should we be worried? Next, what’s the deal with bananas? A reader wonders whether his three-years-strong morning banana habit is introducing too much sugar into his system. I answer and explore the health effects of banana consumption in general. And finally, what are we to make of the recent death of a Melbourne toddler who drank bad raw milk?