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Harrells, NC
A 20-year-old male asked:

is the pre-workout supplement c4 bad for you?

1 doctor answer1 doctor weighed in
Dr. Rex Mahnensmith
A Verified Doctor answered
A US doctor answered Learn more
C4 pre work out: The main ingredient is creatine, which is not in itself harmful; it also contains caffeine and yohimbe, which can energize and promote tachycardia; other ingredients are generally safe ----- overall, is a safe product - don't overuse it or overdose - not safe then

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Similar questions

Riverbank, CA
A 19-year-old male asked:

I just purchased the pre-workout supplement "c4 extreme" and i was wondering if it has any side effects that I should be aware of? Thanks in advance.

1 doctor answer1 doctor weighed in
Dr. Randy Stevens
General Surgery 24 years experience
Yes side effects: Read huffington post article about high school athletes requiring surgery for compartment syndrome. Look at ingredients of C4 extreme, if you do not understand the ingredients then avoid them. Make sure your parents aware of this supplement and ask if any family members have high blood pressure or sudden death. Please avoid taking this supplement.
Bakersfield, CA
A 37-year-old male asked:

I recently bought the pre=workout supplement by Force Factor called VolcaNo. Is there any side effects or health risks I should be aware of?

1 doctor answer1 doctor weighed in
Dr. James Natalie
Sports Medicine 16 years experience
Avoid use: Supplements are not regulated by the FDA, allowing unsafe products, contaminated, and ineffective products to flood our markets and harm otherwise healthy patients. AVOID, AVOID, AVOID http://www.accessdata.fda.gov/scripts/sda/sdNavigation.cfm?filter=Volcano&sortColumn=&sd=tainted_supplements_cder&page=1&displayAll=false

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Last updated Jan 15, 2019
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