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A 26-year-old male asked:

Does optimum nutrition 'serious mass' weight gainer contains the same ingredients as 'red bull' energy drink?

1 doctor answer2 doctors weighed in
Dr. Ted Anderson
Gynecology 28 years experience
Read label!: Heart racing is likely from caffeine in the red bull. All of these stimulant supplements ave potential undesired or harmful side effects.

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Last updated Dec 27, 2014

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