Caffeine in Green Tea vs Red Eye Coffee
Serving Size in USA
  
  
Short (8 floz)
Not Available
  
Tall (12 floz)
Not Available
  
Serving Size in UK
  
  
Short (236 ml)
Not Available
  
Tall (354 ml)
Not Available
  
Caffeine Level
Very low
  
Extreme
  
Safe Level
400.00 mg
  
400.00 mg
  
Harmful Level
500.00 mg
  
500.00 mg
  
Effects of Caffeine
Dizziness, Fever, Headache, Muscle twitching
  
Fast heartbeat, Insomnia, Irritability, Muscle tremors, Nervousness, Restlessness, Stomach upset
  
Green Tea vs Red Eye Coffee Caffeine
Caffeine is one of the most used substance all over the world. Ideally it should be consumed as less as possible. Find out Green Tea vs Red Eye Coffee caffeine content in the following sections. However Green Tea Caffeine levels and Red Eye Coffee Caffeine levels may differ with their brands, quantity of additives used, types of additives used etc. Below we have given you a generalized idea of safe levels of caffeine in Green Tea vs Red Eye Coffee, their side effects and benefits.