How Much Caffeine Is Too Much Caffeine?
Huff PostGetty Images Most of us — 75% of us, in fact — enjoy a cup of coffee in the mornings. “In general, caffeinated soda and green or black tea would contain about half as much caffeine as coffee,” Udelson noted. “Energy drinks may have up to twice the caffeine level as a cup of coffee.” To put Panera’s Charged Lemonade into context, a regular size has about as much caffeine as two to three cups of coffee and about 10 cups of green tea. “Chronic use of too much caffeine could be associated with chronic sleep problems, anxiety, chronic stomach problems, high blood pressure and heart rhythm disturbances,” Udelson added. “It is recommended that pregnant and lactating people limit caffeine to the equivalent of two to three cups of coffee per day,” Udelson said.