Written by CalorieData Nutrition TeamReviewed by a Registered DietitianLast Updated: March 2026

Kombucha vs Pepsi: Nutrition Comparison

Which is healthier? Compare calories, protein, carbs, and more

Complete side-by-side nutrition comparison per 100g serving | Updated 2026

Which is Healthier?

Kombucha is generally healthier

Kombucha comes out ahead in this comparison, winning in 2 out of 5 key nutritional categories. It has fewer calories (17 vs 43), more protein (0g vs 0g), more fiber (0g vs 0g), less sugar (3g vs 11g), making it the better choice for most health goals.

Quick Summary

Fewer Calories

Kombucha

17 kcal

More Protein

Kombucha

0g

More Fiber

Kombucha

0g

Less Sugar

Kombucha

3g

Visual Comparison

Caloriesper 100g
Kombucha
17
Pepsi
43
Proteinper 100g
Kombucha
0g
Pepsi
0g
Carbohydratesper 100g
Kombucha
4.5g
Pepsi
11g
Fatper 100g
Kombucha
0g
Pepsi
0g

Side-by-Side Nutrition Table

NutrientKombuchaPepsiDifference
Calories17kcal43kcal-26.0kcal
Protein0g0g0.0g
Carbohydrates4.5g11g-6.5g
Fat0g0g0.0g
Fiber0g0g0.0g
Sugar3g11g-8.0g
Sodium5mg3mg+2.0mg

Serving Size Comparison

All values above are per 100g. Here's how they compare in common serving sizes:

Kombucha

Per 100g:17 calories
Per cup (150g):26 calories
Per serving (85g):14 calories

Pepsi

Per 100g:43 calories
Per cup (150g):65 calories
Per serving (85g):37 calories

Diet Compatibility

Kombucha

Low-CarbLow-CalorieVeganVegetarianLow-Sodium

Pepsi

Low-CalorieVeganVegetarianLow-Sodium

When to Choose Kombucha

  • Lower in calories (17 vs 43)
  • Higher in protein (0g vs 0g)
  • More fiber (0g vs 0g)
  • Lower in carbs (4.5g vs 11g)
  • Less sugar (3g vs 11g)

Common Uses

HydrationMorning ritualSocial occasionsEnergy boost
View full Kombucha nutrition →

When to Choose Pepsi

  • Lower sodium (3mg vs 5mg)

Common Uses

HydrationMorning ritualSocial occasionsEnergy boost
View full Pepsi nutrition →

Kombucha vs Pepsi: Nutritional Analysis

Pepsi is more calorie-dense at 43 calories per 100g compared to 17 for Kombucha, a difference of 26 calories. These differences become meaningful when you consider how each food fits into your daily dietary pattern rather than looking at any single nutrient in isolation.

Macronutrient Breakdown

The macronutrient profiles of Kombucha and Pepsi tell different nutritional stories. Kombucha provides 4.5g of carbohydrates, 0g of fat, and 0g of fiber per 100g, while Pepsi contains 11g carbs, 0g fat, and 0g fiber. Sugar content also differs: Kombucha contains 3g while Pepsi has 11g per 100g. Lower sugar options are generally preferable for blood sugar management and dental health.

Key Takeaways

  • For weight management: Kombucha is the lower-calorie choice at 17 cal/100g, making it more suitable for calorie-controlled diets.
  • For muscle building: Kombucha provides more protein (0g/100g), supporting muscle repair and growth.
  • For sustained energy: Kombucha offers more fiber (0g/100g), which slows digestion and provides steadier energy release.
  • Overall: Neither food is universally "better" than the other. The right choice depends on your specific nutritional goals, meal context, and dietary preferences. Both can play a role in a balanced diet.

Frequently Asked Questions

Which has more calories, Kombucha or Pepsi?

Pepsi has more calories with 43 kcal per 100g, compared to Kombucha with 17 kcal. That's a difference of 26 calories per 100g serving.

Is Kombucha healthier than Pepsi?

Based on our nutritional analysis, Kombucha is generally the healthier choice, winning in 2 out of 5 key nutritional categories. Kombucha has 17 calories, 0g protein, and 0g fiber per 100g. However, the best choice depends on your specific dietary goals.

What is the protein difference between Kombucha and Pepsi?

Kombucha and Pepsi have the same protein content at 0g per 100g.

Which is better for weight loss, Kombucha or Pepsi?

For weight loss, Kombucha is the better choice with only 17 calories per 100g compared to 43 calories in Pepsi. Pepsi also offers 0g of fiber per 100g, which helps you feel fuller longer.

Does Kombucha or Pepsi have fewer carbs?

Kombucha has fewer carbs with 4.5g per 100g, compared to Pepsi with 11g. If you're following a low-carb diet, Kombucha is the better option with 6.5g fewer carbohydrates.

About Our Data

All nutrition data in this comparison is sourced from the USDA FoodData Central, the official food composition database maintained by the U.S. Department of Agriculture. Values are based on 100g servings for accurate comparison.

Health Disclaimer: This comparison is for informational purposes only and is not intended as medical or dietary advice. Nutritional needs vary by individual. The best food choice depends on your personal health goals, dietary requirements, and preferences. Consult a healthcare provider or registered dietitian for personalized nutrition guidance.