Can be: It contains a lot of caffeine and high levels of other supplements - some in excess can be harmful - caffeine in high does can lead to nervousness and irritability, sleep difficulties or even cause your heart to race or high blood pressure. Some of it depends on your medical history. Some people experience headaches when they dont have the caffeine. If you have doubts about it ask your doc.
Answered 2/20/2013
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3 doctors weighed in across 2 answers
A doctor has provided 1 answer
A doctor has provided 1 answer
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