I'm reading the book, Light of the Stars: Alien Worlds and The Fate of the Earth, by Adam Frank. On page 116 I found a sentence I especially like-- a confirmation of McDougall?
"Sugar, in whatever form, is the basic chemical battery for all the metabolic shenanigans cells need to stay alive." So there, Atkins!
http://www.adamfrankscience.com/light-of-the-stars/