Zevia Energy is one of the cleaner energy drinks on the market, but “healthy” depends on what you’re comparing it to and how much you drink. With zero sugar, zero calories, and a short ingredient list, it avoids the biggest problems found in mainstream energy drinks. That said, a few nuances are worth understanding before you make it a daily habit.
What’s Actually in a Can
Zevia Energy has five ingredients: carbonated water, natural flavors, citric acid, stevia extract, and caffeine. That’s it. No sugar, no artificial sweeteners like sucralose or aspartame, no taurine, no B-vitamin mega-doses, and no mysterious “energy blends.” Compared to most energy drinks, the ingredient list is remarkably short.
Each 12-ounce can contains 120 mg of caffeine, sourced from tea leaves rather than synthetic caffeine. For reference, the FDA considers up to 400 mg of caffeine per day safe for most adults, so a single Zevia Energy lands at about 30% of that ceiling. That’s roughly equivalent to a strong cup of coffee and well below the 200 to 300 mg found in many competing energy drinks.
How Stevia Affects Blood Sugar and Insulin
The sweetener in Zevia is stevia leaf extract, a plant-derived sweetener with zero calories that your digestive system doesn’t break down or absorb in the same way it processes sugar. This means drinking a stevia-sweetened beverage doesn’t spike your blood sugar the way a sugary energy drink would. A meta-analysis published in a nutrition journal found that stevia consumption was actually associated with modest reductions in blood glucose, particularly in people with higher BMI, diabetes, or hypertension.
The insulin picture is more mixed. When people drank stevia-sweetened beverages with a meal instead of sugar-sweetened ones, their post-meal blood sugar and insulin responses were both lower. However, some research suggests stevia may still promote a small insulin release on its own, possibly by acting directly on cells in the pancreas. For most people, this effect is minor compared to the insulin surge caused by a drink loaded with 40 or 50 grams of sugar. If you’re managing diabetes or following a ketogenic diet, stevia is generally considered one of the more favorable sweetener choices, though individual responses can vary.
The Erythritol Question
While Zevia Energy’s ingredient label lists stevia as the sweetener, some other Zevia products use erythritol (a sugar alcohol) in combination with stevia. Erythritol has drawn attention after observational studies linked higher blood levels of it to increased risk of heart failure, cardiovascular death, and overall mortality in older adults. A study published in JACC: Advances followed over 4,000 participants without existing heart disease for a median of about 8.4 years and found that those with the highest erythritol levels had significantly higher rates of cardiovascular events.
Before you panic, some important context: these studies were observational, meaning they tracked associations rather than proving cause. The participants’ erythritol intake wasn’t directly measured, and your body actually produces erythritol on its own from glucose. People who already had diabetes, hypertension, and higher BMI tended to have the highest erythritol levels, making it hard to untangle cause from effect. A more rigorous genetic analysis (called Mendelian randomization) found no causal link between erythritol and diabetes, coronary artery disease, or kidney disease. Still, if the erythritol research concerns you, check labels carefully. The Zevia Energy line itself lists only stevia extract, not erythritol.
Acidity and Your Teeth
One health angle people overlook with zero-calorie drinks is dental erosion. Zevia contains both carbonation and citric acid, a combination that lowers the pH of the beverage. Research published in JADA Foundational Science tested several beverages, including Zevia Cherry Cola, and found that all carbonated samples had a pH below 5.5, the threshold at which tooth enamel begins to dissolve. Carbonated beverages in the study caused greater surface roughness and volume loss on tooth surfaces compared to non-carbonated options.
This doesn’t mean one can of Zevia will damage your teeth. Saliva naturally buffers acidity in your mouth, and occasional exposure is very different from constant sipping throughout the day. But if you’re drinking multiple cans daily, or holding the drink in your mouth, you’re giving acid more contact time with your enamel. Drinking it with a meal, using a straw, or rinsing with water afterward are simple ways to reduce that exposure.
How It Compares to Other Energy Drinks
The real value of Zevia Energy becomes clear when you line it up against the competition. A standard 16-ounce Monster or Rockstar contains 54 to 63 grams of sugar (more than a can of Coke), 150 to 300 mg of caffeine, artificial colors, and a long list of added supplements. Even the sugar-free versions of mainstream energy drinks typically rely on sucralose or acesulfame potassium, artificial sweeteners that have drawn their own health debates.
Zevia skips all of that. No added sugar means no blood sugar crash an hour later. No artificial sweeteners means fewer questions about gut health and metabolic disruption. Lower caffeine per can means less risk of jitteriness, anxiety, or sleep interference, especially if you’re someone who metabolizes caffeine slowly. It’s not a superfood, but as a category, energy drinks set a low bar, and Zevia clears it comfortably.
Who Benefits Most
If you’re switching from a daily Red Bull or Monster habit, Zevia Energy is a meaningful upgrade. You’re eliminating a significant source of added sugar and cutting your caffeine intake per serving, while still getting enough of a boost to feel a difference. It’s also a reasonable option for people managing blood sugar who still want a carbonated, caffeinated drink that tastes sweet.
If you’re comparing Zevia to plain water, black coffee, or green tea, it’s not an upgrade. Those options provide caffeine (in the case of coffee and tea) without any acidity concerns from citric acid, and water is still the baseline your body prefers for hydration. Zevia Energy is best understood as a harm-reduction choice within the energy drink category rather than a health food in its own right. One can a day is unlikely to cause problems for a healthy adult, but it’s also not doing anything your body couldn’t get from simpler sources.