Disclaimer: None of the information in this article constitutes medical advice. All statements are merely the opinion of the writer(s). We recommend that individuals follow their doctor’s guidance in regard to energy drinks
C4 is a popular energy drink brand. The company sells both canned drinks and pre-workout powder, and claims that their product line “fights fatigue with clinically studied ingredients.”
But does C4 contain ingredients shown in research studies to improve energy levels? Does the brand use any unhealthy additives? What do medical experts have to say about energy drinks? And what was our Product Tester's honest experience trying C4?
In this article we’ll answer all of these questions and more, as we analyze the ingredients in C4 to give our take on whether or not the popular energy drinks are bad for you.
We’ll share YouTube videos on C4 from credentialed medical professionals, and also share our Product Tester's honest experience trying this product.
Key takeaways:
- Contains artificial flavors
- Contains artificial sweeteners
- We consider C4 to be bad for you
Ingredient Analysis
The ingredients in C4 Performance Energy, Frozen Bombsicle flavor are shown below:
Caffeine is one of the most effective compounds for enhancing energy, and is included in most commercial energy drinks. C4 contains 200 milligrams (mg) of caffeine, which is an effective dose.
Caffeine is clinically shown to improve both mental and physical energy (source 1, source 2).
Beta-alanine was shown in a 2012 medical review to reduce fatigue, although the dose doesn’t appear to be published on C4’s website.
Betaine was shown to improve muscular endurance in a 2009 clinical trial, which suggests that it supports physical energy improvements.
While there are some research-backed ingredients in C4 for supporting energy, there are also some inactive ingredients that may be questionable from a health perspective.
Sucralose is an artificial sweetener that was shown to worsen insulin function in a clinical trial published in the Nutrition Journal.
Citric acid can cause whole-body inflammation in some individuals, as documented in a medical review published in the Toxicology Reports journal.
Natural and artificial flavors fail to document the specific chemical compounds used, some of which may be unhealthy, as we discussed in our Energy Renew reviews article.
Potassium sorbate is a preservative, and acesulfame potassium is another non-caloric sweetener.
Overall, we consider C4 likely to improve energy levels, and from a strictly energy perspective, it’s a great formulation.
Most energy drinks that we’ve reviewed on Illuminate Health contain only one active ingredient supporting energy (typically caffeine), while C4 contains several.
Overall, we consider C4 bad for you given the artificial flavors and other flavoring ingredients highlighted above.
Do Energy Drinks Even Work?
A YouTube video from the “Buzzfeed Multiplayer” channel tested the effects of three popular energy drinks on reaction time and more to see if they actually work:
Is C4 Healthier Than Other Energy Drinks?
C4 has a somewhat similar formulation to other energy drinks we’ve recently reviewed. The ingredient list for Red Bull is shown below:
We consider C4 to be healthier than Red Bull because it’s sugar-free and free of artificial dyes.
Another huge benefit of C4 over other energy drinks we’ve reviewed is that the brand is NSF Certified for Sport. This certification program ensures that products are accurately labeled and free of contaminants.
For this reason alone, we consider C4 to be healthier than pretty much any other commercial energy drink, because we have not come across any with third-party certifications for product purity.
We Tried C4 Ourselves
One of our product testers named Jodie Steinberg tried a C4 Energy Drink. Here's her experience:
Packaging was simple and convenient, as this was a standard metal can that was easy to open.
It was not overly sweet or artificially flavored where you could not enjoy it.
The taste was surprising in a good way. I expected it to be too sweet but it was just sweet enough. Given there is no actual sugar in it, I was impressed with the taste.
The product is an energy drink, so I drank it when I was quite tired during the day-time and had been quite anxious over recent personal events.
This drink woke me up without adding any anxiety from being overstimulated. It lasted for eight hours.
This product didn't cause any side effects, and I would consider purchasing it again.
Overall, I would rate C4 Energy Drink 10 out of 10.
Our Clean Energy Picks
Illuminate Labs Panax Ginseng Extract is our top energy supplement.
Panax ginseng extract has been clinically shown to reduce mental fatigue and reduce physical fatigue, and our supplement is third-party tested to ensure its purity and potency.
Pique Breakfast Black Tea Sticks is our top whole food energy pick.
Black tea consumption is "associated with rapid increases in alertness and information processing capacity" according to a clinical trial, and Pique's tea is organic and comes in convenient stick packs that can be mixed into water, so a teapot or kettle are not needed.
Both of the products recommended in this section are free of ingredients we consider to be unhealthy.
