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Old 01-13-2013, 04:08 PM   #2
BMW_Matt
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Join Date: Jul 2008
Location: Maryland
Posts: 13,066
My Ride: Has AWD
People have reactions to all different ingredients that are in pre workouts.

My guess is the caffeine...known to give headaches, stomach aches and the squirts.

Generally it's a good idea to use about 8 or so weeks and take a week off on all pre workouts. No reason to be worried taking c4 for a healthy Individual.

Last edited by BMW_Matt; 01-13-2013 at 06:11 PM.
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