What are the dietary sources of caffeine?

Updated: Jun 14, 2018
  • Author: Jasvinder Chawla, MD, MBA; Chief Editor: Nicholas Lorenzo, MD, CPE, MHCM, FAAPL  more...
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Caffeine is present in a number of dietary sources including tea, coffee, cocoa beverages, candy bars, and soft drinks. The caffeine content of these food items varies, as follows:

  • Coffee – 71-220 mg/150 mL

  • Tea – 32-42 mg/150 mL

  • Cola drinks – 32-70 mg/330 mL

  • Cocoa beverages – 4 mg/150 mL

The 2 major coffee types are arabica (Coffea arabica) and robusta (Coffea canephora). In a standard 150 mL cup, the content of caffeine ranges from 71 to 120 mg per cup for arabica coffee and from 131 to 220 mg per cup for robusta.

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