My son is 17 with no medical problems. He plays football and the other players are taking C4 ... whether it will be harmful to him. Do you have an opinion on this supplement? ... View answer

Hi I am taking Prozac for five years now and I bought a pre workout suplements with Creatine in it , is it safe to take them ? The suplements are C4 pre workout and Assult . Thank you ... View answer

workout supplement I take BACC sort of a pre pre workout supplement. ... pre and post workout supplements. My main question is, how soon would you suggest I can... View answer

pre workout supplement that I just mentioned or should I just workout without taking it ??? ...Hello doc I am into body building and am planning to take a pre workout CNS -... View answer

, once weekly. Can I take nutritional supplement commonly called NOXP3 or Erratic as a pre-workout supplement prior to my weight training workouts? These some nitrates to help with your work out... View answer

-workout supplement c4. I take 60mg of Vyvanse in the morning and I was wondering if it would be bad to take this supplement in the evenings around 4 when I workout. I would take a very... View answer

i took a pre workout supplement called c4, im getting chest pains, breathing heavily feels like my chest is pushing in an making it harder to breathe. my neck is very tense. im 17 and been using... View answer

Hello I m taking a pre workout supplement called hemo rage black I have been recently having erection problems can this supplement b the cause I am a 32 year old man and have never had this... View answer

Hello I drink a 2 scoop of C4 original pre workout yesterday and this is the first time in my life i took pre workout but today when i went to the restroom my poop was green i been to the... View answer

Hi, when i workout or perform cardiovascular activitys i have a heart beat of about 120-150 , if i take a supplement called Jack3d which is a pre workout supplement, should i worry? i... View answer