How To “Eat Like The Animals” For Optimal Health | Stephen Simpson

EPISODE 98 | Stephen Simpson is Academic Director of the Charles Perkins Centre and Professor in the School of Life and Environmental Sciences at the University of Sydney. After graduating as a biologist from the University of Queensland, Steve undertook his PhD at the University of London, then spent 22 years at Oxford before returning to Australia in 2005 as an Australian Research Council Federation Fellow, then ARC Laureate Fellow. Stephen developed an integrative modeling framework for nutrition, which was devised and tested using insects. This has since been applied to a wide range of organisms (from slime moulds to humans) and problems (from aquaculture and conservation biology to the dietary causes of human obesity and aging). He has also revolutionized understanding of swarming in locusts, with research spanning neurochemical events within the brains of individual locusts to continental-scale mass migration. Together with his colleague and friend David Raubenheimer, Stephen wrote Eat Like The Animals: What Nature Teaches Us About The Science Of Healthy Eating. In the episode, Stephen shares the single macronutrient every animal craves to satisfy above all else, the real reason why we overeat things like chips and ice cream, tips for reconnecting with our taste buds that can feel like they’ve been “hijacked”…and more! Enjoy!!


P.S. – If you’re liking The Health Investment Podcast, be sure to hit “subscribe/follow” so that you never miss an episode 🙂



  • Can you explain your education and background? How did you eventually team up with David Raubenheimer to write Eat Like The Animals?
  • What is a calorie? What are some common misconceptions about calories?
  • How do each of the macronutrients (fat, carbs, protein) serve us in different ways? How do micronutrients (vitamins and minerals) serve us?
  • You write, “All mammals, including ourselves, are lucky to start life in such ideal circumstances — because mother’s milk is as close as we’ll ever come to a perfectly balanced diet. It contains, in proper proportions, everything a newborn needs to grow. But after a mammal is weaned, nutrition becomes a much trickier undertaking.” Why does it get so tricky? How do our brains get so confused?
  • What are our FIVE appetites?
  • Why do we end up overeating fat and carbs?
  • Are plant sources of protein as effective and efficient as animal sources?
  • Ultimately, what should we be eating most of the time? What should we be avoiding?




Four monkeys below title - How To Eat Like The Animals For Optimal Health