Caffeine and Weight

A psychoactive substance that acts as a stimulant in the brain
Pros:
Could reduce hunger, promote oxidation or burning of fat. In the absence of additives like sugar, sweetened creamer may cause minor weight loss. Other effects include increase alertness, decreased fatigue
Cons:
In higher doses caffeine may lead to anxiety, tremors, increased heart rate, and when taken for a prolonged period, may lead to withdrawal symptoms, that may begin as early as 12 to 24 hours after the last drink and which may manifest as headaches, anxiety, fatigue, difficulty with concentration, irritability, tremors