BUBBL’R is a reasonable alternative to traditional energy drinks, with only 5 calories per can, zero sugar, and 69 mg of caffeine. But “good for you” depends on what you’re comparing it to and how much you drink. It’s far better than a Monster or Red Bull nutritionally, though it’s not the same as drinking plain water. A few ingredients deserve a closer look.
What’s Actually in a Can
Each 12-ounce can of BUBBL’R contains carbonated water, erythritol (a sugar alcohol), citric acid, stevia leaf extract, pectin, caffeine from guarana seed extract, and several added vitamins. The colors come from vegetable and fruit juice. There are no artificial sweeteners or artificial colors.
The nutrition label reads 7 grams of total carbohydrates, but the brand notes that erythritol carbs don’t affect blood sugar or contribute meaningful calories, putting the effective count at 1 net carb or less. Total sugar is zero grams. At 5 calories a can, it’s essentially a flavored sparkling water with a caffeine kick.
How the Caffeine Compares
BUBBL’R delivers 69 mg of caffeine per can, sourced from guarana seed extract. That’s roughly the same as a cup of black tea and about two-thirds of what you’d get from an 8-ounce cup of coffee. For comparison, a standard 16-ounce energy drink often packs 150 to 300 mg.
You might see marketing suggesting guarana provides a “smoother” or “slower” energy release than regular caffeine. Lab research doesn’t support that. A study comparing caffeine absorption from guarana versus pure caffeine found no significant differences in release rate or intestinal uptake at any pH level. Caffeine is caffeine, regardless of the plant it comes from. That said, 69 mg is a moderate dose that’s unlikely to cause jitters for most adults.
The Erythritol Question
Erythritol is the primary sweetener in BUBBL’R, and it’s the ingredient that has drawn the most scientific scrutiny in recent years. For a long time, erythritol was considered one of the safest sugar alcohols because the body absorbs most of it and excretes it unchanged, meaning it causes fewer digestive issues than alternatives like sorbitol or xylitol.
Newer research has raised questions. A Mendelian randomization study published in the American Journal of Preventive Cardiology found small but statistically significant associations between erythritol and increased risk of coronary heart disease, heart attack, and stroke. Separate lab work showed that erythritol can increase platelet reactivity, essentially making blood cells slightly “stickier” and more prone to clotting. Another study found it may trigger inflammatory responses in immune cells linked to cardiovascular and metabolic disease.
These findings are preliminary, and the absolute risk increases observed were very small. The European Food Safety Authority set an acceptable daily intake for erythritol in late 2023, though that threshold was based primarily on its laxative effects rather than cardiovascular concerns. If you’re drinking one BUBBL’R a day, the amount of erythritol is modest. But if you’re consuming erythritol from multiple sources throughout the day (protein bars, sugar-free gum, other zero-calorie drinks), the cumulative intake is worth thinking about, especially if you have existing heart disease risk factors.
Vitamins and Antioxidant Claims
BUBBL’R markets itself as an “antioxidant sparkling water” and includes several B vitamins (niacin, pantothenic acid, B6, and B12) along with vitamin A. These are real vitamins, but they’re the same ones already abundant in common foods like eggs, chicken, leafy greens, and fortified cereals. Most people eating a typical diet aren’t deficient in any of them.
Added vitamins in a beverage aren’t harmful, but they’re also not a meaningful health benefit for the average person. Your body excretes excess water-soluble B vitamins in urine. The “antioxidant” label sounds impressive, though it’s more of a marketing term than a reason to choose this drink over another.
Acidity and Your Teeth
One thing people overlook with flavored sparkling water is its effect on tooth enamel. BUBBL’R contains both carbonation and citric acid, which together lower the pH of the drink. Research on flavored sparkling waters found pH levels ranging from 2.64 to 3.24, well below the critical threshold of 4.5 where enamel erosion begins. Some flavored waters tested were as erosive as orange juice.
Plain carbonated water sits around pH 5.2, which is mild enough to be a non-issue. But the added citric acid in flavored versions like BUBBL’R drops that number considerably. Sipping acidic drinks slowly over long periods does more damage than drinking them quickly, because it keeps your mouth in an acidic state longer. If you’re having one with a meal, it’s not a major concern. If you’re nursing a can at your desk for two hours, your enamel takes more of a hit.
How It Stacks Up Against Alternatives
- Versus energy drinks: BUBBL’R wins easily. A 16-ounce can of Monster has 210 calories, 54 grams of sugar, and over twice the caffeine. Even sugar-free energy drinks typically contain more caffeine and artificial ingredients.
- Versus coffee: Nutritionally similar in terms of calories (black coffee has essentially zero). Coffee offers well-documented health benefits from polyphenols and other plant compounds that BUBBL’R doesn’t have. But if you dislike coffee or want something cold and flavored, BUBBL’R is a decent swap.
- Versus plain sparkling water: Plain seltzer has no sweeteners, no citric acid, and less enamel erosion risk. If you don’t need the caffeine, plain sparkling water is the cleaner choice.
- Versus soda: A can of Coke has 140 calories and 39 grams of sugar. BUBBL’R is dramatically better by every nutritional measure.
BUBBL’R lands in a middle ground: it’s a solid choice if you’re replacing sugary drinks or high-caffeine energy drinks, and a slight step down from plain water or unsweetened seltzer. The erythritol question is worth monitoring as more research comes in, but at one can a day, the overall profile is reasonable for most people.