Is Sunburst Sparkling Berry Burst Keto?

The Ingredient Breakdown

As a food scientist, I look past the marketing claims and go straight to the label. The keto status of Sunburst Sparkling Berry Burst rests entirely on how the body processes its specific fruit ingredients compared to added sugars.

The primary ingredients are white grape concentrate and apple concentrate. In standard soft drinks, these would be a red flag for high fructose content. However, in a zero-calorie sparkling water, the volume of liquid is so diluted that the residual sugar from these concentrates becomes negligible—often less than 0.5 grams per serving. The FDA allows these to be labeled as zero-calorie because the amount is mathematically insignificant to your daily macros.

We also see elderberry concentrate and raspberry concentrate. These provide the distinct berry flavor and color without adding carbohydrates. The acidity is balanced by citric acid, a common keto-safe acidulant. Finally, the preservatives sodium benzoate and potassium sorbate are used to prevent fermentation. While some paleo dieters avoid these, they have zero impact on insulin response or ketosis.

Nutritional Value

From a nutritional standpoint, this beverage is essentially treated as water by the body. The label indicates 0 grams of sugar, 0 grams of fat, and 0 grams of protein. This means it provides 0 calories.

For a ketogenic diet, the strictest limit is usually 20 grams of net carbs per day. Because Sunburst Sparkling Berry Burst contains 0g net carbs, it fits easily into this budget. It does not trigger the insulin spike associated with sugary sodas or fruit juices, allowing you to enjoy a flavored drink without disrupting your metabolic state.