Ep. 144 | Caffeine - Coffee vs Green Tea vs Energy Drinks
Sponsors
- U.S. FDA. Spilling the Beans: How Much Caffeine is Too Much? (400 mg/day guidance; variability; concentrated caffeine warning).
- ISSN Position Stand: Caffeine and Exercise Performance (effective doses 2–6 mg/kg; timing; side effects at high doses). 
- ISSN Position Stand: Energy Drinks & Energy Shots (primary effects are from caffeine/carbohydrate; performance notes). 
- Drake et al., J Clin Sleep Med 2013 (caffeine 0/3/6 h pre-bed impairs sleep). 
- Poole et al., BMJ 2017 Umbrella Review (coffee consumption & health outcomes—associations).
- Killer et al., PLoS ONE 2014 (coffee vs water—no dehydration with moderate intake). 
- AAP Clinical Report 2011 (energy drinks inappropriate for children/adolescents). 
- ACOG Committee Opinion (≤200 mg/day in pregnancy).  
- Owen et al., Nutritional Neuroscience 2008 (caffeine + L-theanine improves attention/task switching). 
