Calories in Kombucha: Nutrition Facts & Serving Sizes
Per 1 bottle (473ml)
Per 100g
Source: Web research, March 2026.
A standard 16oz bottle of kombucha (473g) contains about 80 calories, making it a low-calorie alternative to sugary drinks. Per 100g, kombucha provides 17 calories with 3.8g of carbs, 3.4g of sugar, and zero protein or fat. Kombucha is a fermented tea beverage made by combining sweetened black or green tea with a symbiotic culture of bacteria and yeast (SCOBY). The fermentation process converts most of the sugar into organic acids, B vitamins, and beneficial bacteria. The resulting drink is slightly fizzy with a tangy flavor. Kombucha is popular as a gut-health-supporting alternative to soda. It provides small amounts of B vitamins including B6 (0.1mg per 100g) and B12 (0.1mcg per 100g) from the fermentation process. For anyone looking to cut soda out of their diet without giving up carbonation, kombucha is a practical swap. The sugar content varies by brand and flavor, so always check the label when tracking macros.
Nutrition Highlights
Calories by Serving Size
| Serving | Cal | Protein | Carbs | Fat | Fiber |
|---|---|---|---|---|---|
| 1 bottle (473ml) | 80.4 | 0g | 18g | 0g | 0g |
| 100g | 17 | 0g | 3.8g | 0g | 0g |
Track Kombucha in CaloBurner
Snap a photo to log calories and macros instantly.
Full Nutrition Facts (per 100g)
| Nutrient | Amount | % Daily Value |
|---|---|---|
| Calories | 17 | 1% |
| Protein | 0g | |
| Total Fat | 0g | |
| Total Carbohydrates | 3.8g | 1% |
| Dietary Fiber | 0g | |
| Sugars | 3.4g | 7% |
| Sodium | 4mg |
Vitamins & Minerals (per 100g)
| Nutrient | Amount | % Daily Value |
|---|---|---|
| Calcium | 2mg | 0% |
| Iron | 0.1mg | 1% |
| Potassium | 14mg | 0% |
| Vitamin B6 | 0.1mg | 6% |
| Vitamin B12 | 0.1mcg | 4% |
| Magnesium | 2mg | 0% |
| Phosphorus | 2mg | 0% |
| Folate | 5mcg | 1% |
% Daily Values based on a 2,000 calorie diet (FDA reference).
Health Benefits of Kombucha
Kombucha is one of the most practical low-calorie beverage swaps for anyone trying to ditch soda without losing carbonation. A 16oz bottle has only about 80 calories compared to 180-200 calories in a regular soda of the same size. This calorie difference adds up significantly over time.
The primary health claim for kombucha is its probiotic content. The fermentation process creates live cultures of beneficial bacteria and yeast. Probiotics support gut microbiome diversity, which is connected to digestion, immune function, and inflammation regulation. For those training hard, keeping inflammation in check and maintaining good gut function supports overall recovery.
Kombucha contains small amounts of B vitamins, particularly B12 and B6, produced during fermentation. B12 is involved in energy metabolism and is a nutrient that is difficult to get from plant-based diets, so any additional source is useful. B6 supports protein metabolism, which matters when you are eating high-protein diets for muscle building.
The organic acids produced during fermentation, including acetic acid and glucuronic acid, may have mild antimicrobial properties and support liver function. However, the research base here is not as strong as the evidence for probiotics.
Combucha is also much lower in sugar than most commercial drinks, though sugar content varies significantly by brand. Check the label and aim for varieties with under 6g of sugar per serving.
Dietary Considerations
Kombucha is naturally gluten-free and vegan (assuming no honey is added in some varieties). It is not keto-friendly if you are strictly counting carbs, as a full bottle contains about 18g of carbs, though some of this comes from the fermentation process and may not raise blood sugar significantly. Kombucha is excellent for weight loss as a soda replacement due to its low calorie density. The trace amounts of alcohol (typically under 0.5% ABV) produced during fermentation are negligible. Always check labels as sugar and carb content vary widely between brands.
Daily Intake (100g)
100g of kombucha provides 1% of a 2,000-calorie diet.
Track Your Intake
See how kombucha fits your personal calorie and macro targets.
Related Foods
Frequently Asked Questions
How many calories in kombucha?
A standard 16oz bottle of kombucha (473g) contains about 80 calories. Per 100g, kombucha has 17 calories. Calorie content varies between brands and flavors, so always check the label if you are tracking closely.
Is kombucha good for weight loss?
Kombucha can support weight loss as a low-calorie replacement for soda and other sugary drinks. At 80 calories per 16oz bottle compared to 150-200 calories in soda, it is a practical swap that reduces daily calorie intake. The probiotic content may also support a healthy metabolism.
How much sugar is in kombucha?
Kombucha contains about 3.4g of sugar per 100g. A 16oz bottle has about 16g of sugar. Sugar content varies significantly by brand and flavor, with some flavored varieties containing more added sugar. Check the nutrition label when tracking macros.
Does kombucha have alcohol?
Kombucha contains trace amounts of alcohol produced during fermentation, typically under 0.5% ABV, which classifies it as a non-alcoholic beverage in most jurisdictions. However, some raw or home-brewed varieties may have higher alcohol content. Commercially produced kombucha is generally safe and legal for all ages.
Is kombucha keto-friendly?
Kombucha is borderline keto-friendly. A full 16oz bottle contains about 18g of carbs. If you are on strict keto limiting carbs to 20g per day, a full bottle uses most of that budget. Half a bottle (8oz) is more manageable at around 9g of carbs.
Track Kombucha in Your Diet
Snap a photo of your meal and CaloBurner will calculate the exact calories and macros. No food weighing required.