The Full Comparison
Every number below comes from the product's published nutrition label or the USDA FoodData Central database. No estimates, no rounding for effect.
| Attribute | Bare Brew (11.5 oz) | Monster (16 oz) | Red Bull (8.4 oz) | Celsius (12 oz) | Bang (16 oz) |
|---|---|---|---|---|---|
| Ingredients | 2 (water, Colombian coffee) | 15+ | 11 | 12+ | 14+ |
| Caffeine | 320 mg (natural) | 160 mg (natural + synthetic) | 80 mg (synthetic) | 200 mg (natural) | 300 mg (synthetic) |
| Sugar | 0 g | 54 g | 27 g | 0 g | 0 g |
| Calories | 5 | 230 | 110 | 10 | 0 |
| Artificial Sweeteners | None | None (uses sugar) | None (uses sugar) | Sucralose | Sucralose, Acesulfame K |
| Artificial Colors | None | Yes | Yes | None | Yes |
| Caffeine Source | 100% coffee bean | Mixed (coffee extract + synthetic) | Synthetic | Green tea, guarana | Synthetic (anhydrous) |
| Antioxidants | Naturally occurring (chlorogenic acids) | Minimal | Minimal | Some (green tea) | CoQ10 (added) |
The Sugar Picture
The American Heart Association recommends no more than 36 g of added sugar per day for men and 25 g for women. One Monster (54 g) exceeds both limits in a single can. One Red Bull (27 g) exceeds the women's limit and approaches the men's.
Bare Brew, Celsius, and Bang all contain zero sugar. But zero sugar doesn't mean the same thing across all three. Celsius uses sucralose. Bang uses sucralose and acesulfame potassium. Bare Brew uses neither — because there are only two ingredients.
Natural vs. Synthetic Caffeine
Natural Caffeine (Coffee Bean): Extracted from coffee beans through brewing. Arrives with 1,000+ bioactive compounds including chlorogenic acids and polyphenols. These co-occurring compounds slow gastric emptying, contributing to a more gradual absorption curve. Bare Brew's caffeine comes entirely from cold-brewed Colombian coffee.
Synthetic Caffeine (Lab-Synthesized): Manufactured from urea and chloroacetic acid. Chemically identical molecule (C8H10N4O2), but arrives isolated — without the buffering compounds found in coffee. Often paired with artificial sweeteners, colors, and proprietary stimulant blends in energy drinks.
The bottom line: Celsius and Bang are zero-sugar, which is a step in the right direction. But zero sugar with sucralose, artificial colors, and synthetic caffeine is a different product category than zero sugar with two ingredients. The question isn't just "how much caffeine" — it's "what else is in the can."
What About Antioxidants?
Coffee is the single largest source of antioxidants in the Western diet — ahead of fruits and vegetables in total intake. Cold brew retains significant levels of chlorogenic acids, the primary antioxidant class in coffee.
A 2018 study published in Scientific Reports (Rao & Fuller) found that while hot brew coffee extracts more total antioxidants than cold brew, cold brew still delivers meaningful antioxidant activity — and does so with 28 to 50% less total titratable acidity, making it gentler on the stomach.
Energy drinks, by contrast, contain minimal naturally occurring antioxidants. Some brands add individual compounds (Bang adds CoQ10, Celsius uses green tea extract), but these are supplemental additions, not the broad-spectrum antioxidant profile found in whole-bean coffee extraction.
For the full science on caffeine's mechanisms and health data, see our pillar article on caffeine science. For how cold brew specifically supports gut health, see Coffee and Your Gut.
Nutritional data sourced from published product labels and USDA FoodData Central. This content is for informational purposes only.
