Green tea is not naturally caffeine-free. Green tea contains an average of 29 milligrams (mg) of caffeine in an 8-ounce cup, but the amount can vary. Black tea typically has more caffeine at 47 mg ...
To determine whether reported improvements in brain function for older adults are solely due to caffeine in green tea or whether other components play a role, ITO EN researchers led a double-blind ...
"The stimulant properties of the caffeine increase the oxidation ... so every can of soda that you replace in a day with green tea or any other calorie-free beverage, you would save 150 calories ...
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