Professor Louise Burke is a sports dietician with nearly 30 years of experience in the counselling and education of elite athletes. Since 1990 she has served as the head of sports nutrition at the Australian Institute of Sport and served as the team dietician for the Australian Olympic team for five Summer Olympics from 1996-2012. Burke is also director of the International Olympic Committee diploma in sports nutrition and is part of the Nutrition Working Group of the IOC. Her research and education interests in sports supplements have included work on caffeine and sports performance. Louise has a very modest caffeine habit. She hates coffee and has never tried an energy drink, and her daily caffeine intake consists (to her husband's annoyance) of half-cups of weak black tea. She is committed to practicing her (also very modest) sporting ability. Towards the end of her annual marathon she consumes caffeinated cola drinks or sports confectionary, which gets her to the finish line with a smile on her face.

Dr. Ben Desbrow is a sports dietician and senior lecturer at Griffith University in Queensland, Australia. He completed his PhD in 2008 investigating the effects of cola beverages on endurance exercise performance. In 1999, Desbrow was awarded the first Nestlé Fellowship in Sports Nutrition at the Australian Institute of Sport. Since that time he has worked with many sporting groups, including the 2000 British Olympic team and the Australian Institute of Sport Cricket Centre of Excellence. Desbrow has co-authored numerous articles on caffeine use by both athletes and the general population for scientific nutrition journals. Desbrow is currently conducting new studies investigating caffeine's ability to influence exercise performance. Ben has an addiction to iced coffee, which usually manifests as confusion around lunch time on most workdays. The solution can only be found by consuming 1 of 3 particular brands (he has a refined palate) or by his own homemade (secret) version. He completed his PhD investigating the effects of cola beverages on endurance performance--an achievement fuelled entirely by caffeine.

Dr. Lawrence L. Spriet is a professor in the department of human health and nutritional sciences at the University of Guelph in Guelph, Ontario, Canada. Dr Spriet received his bachelor's degree in kinesiology at the University of Waterloo, his master's degree in exercise physiology from York University in Toronto, and his doctoral degree in medical sciences from McMaster University. He was a post-doctoral fellow at Huddinge Hospital, Karolinska Institute in Stockholm, Sweden, and a visiting scientist in the School of Health Sciences, Deakin University, Melbourne, Australia. He has studied the regulation of fat and carbohydrate metabolism in skeletal muscle metabolism during exercise and has also worked on the effect of various nutritional and pharmacological interventions on athletic performance. His research output appears in numerous scientific journals, including Journal of Physiology, American Journal of Physiology, and Journal of Applied Physiology. Dr. Spriet is a member of the editorial board for the International Journal of Sports Medicine and the U.S.-based Sports Medicine Review Board of the Gatorade Sports Science Institute. He is also the chair of the Canadian Gatorade Sports Science Institute. Lawrence is a committed caffeine user. He first sampled the benefits of cofffee use while completing his MSc degree many years ago. Coffee now starts his every day, except when he's volunteering for a caffeine withdrawal study! Two to three additional cups of coffee punctuate the day, and just having the cup on the desk is a positive influence on the many tasks that need to be done.