Will quitting coffee for 2 weeks help Katie think, move or feel better? Katie has drunk up to four cups of coffee per day, every day, for over 10 years. She wants to quit coffee cold turkey to break her addiction to caffeine, sleep better and improve her natural energy. Host Katie Williams speaks with naturopath and nutritionist Reece Carter about the impact of caffeine on the body, what substitutes Katie is allowed to drink and how much coffee is too much.