Don's Home Health Nutrition Caffeine Contact
(Average milligrams of caffeine )
Coffee Drip 115-175/8 oz.
Coffee Brewed 80-130/8 oz.
Coffee Expresso 100/2 oz.
Red Bull 80/8 oz.
Jolt 71/12 oz.
Pepsi One 55/12 oz.
Mountain Dew 55/12 oz.
Black Tea 50/8 oz.
Ice Tea 47/8 oz.
Diet Coke 45/12 oz.
Dr. Pepper 41/12 oz.
Sunkist Orange 40/12 oz.
Coke Classic 34/12 oz.
Nestea Iced Tea 26/12 oz.
Green Tea 15-30/8 oz.
Decaf. Tea 4/8 oz.
Hot cocoa 14/8 oz.
Caffeine is a chemical found in plants such as coffee, tea, and cacao. It is also present in most cola beverages. The drug increases the blood pressure, stimulates the central nervous system, promotes urine formation, and stimulates the action of the heart and lungs. Caffeine is used in treating migraine, increases the potency of analgesics such as aspirin, and can relieve asthma by widening the bronchial airways.

  • It takes coffee or tea about 15 to 30 minutes to start having an effect on the brain
  • It takes about 1 hour for caffeine to reach maximum blood levels
  • The half-life of caffeine in the bloodstream is between three and seven hours (depending on the person's age activity and individual chemistry).