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Table 2 Beverages caffeine content in mg/oz

From: Caffeine consumption, intoxication, and stress among female university students: a cross-sectional study

  Mg/oz  
Type Size
  S M L XL
Regular 95.2 142.8 190.4 238
Arabic 4.1
K cups 120 180 240 300
Instant 75.2 122.8 150.4 188
Flavored 48 72 96 120
Specialty 94.8 142.2 189.6 237
Espresso 219
Canned coffee 16.4 24.6 32.8 41
D-café 2 3 4 5
Black tea 47.2 70.8 94.4 118
Green tea 24.8 37.2 49.6 62
Canned tea 16 24 32 40
Cola 24
Citrus 36.8
Energy drinks 80