1 cup (medium) of Water kefir (240 g) has 48 calories. That works out to 20 calories per 100 g. It contains 10.8 g of carbs, 0.2 g of protein, 0 g of fat and 0 g of fiber. Its 0.2 µg of B12 covers 10% of the Daily Value. Its glycemic index is 65 (medium), so it raises blood sugar at a moderate pace.

Water kefir Nutrition Facts

Selected: 100 g

KCAL / 100G

Carbs

4.5g

· 2% DV

Protein

0.1g

· 0% DV

Fat

· 0% DV

Fiber

· 0% DV

DV is the share of the daily value covered, on a 2,000 kcal reference diet.

Calories come from: Carbs 98% · Protein 2% · Fat 0%

Water kefir Vitamins & Minerals

Vitamins

B12

0.1µg · 4% DV

0.01mg · 1% DV

0.03mg · 1% DV

Minerals

Calcium

2mg · 0% DV

Iron

0mg · 0% DV

Magnesium

1mg · 0% DV

Zinc

0mg · 0% DV

How Nutritious Is Water kefir?

Nutrient density

Low

25/ 100

How many vitamins, minerals and how much fiber this food carries per calorie. A high score means a lot of nutrition for few calories.

Satiety score

Medium

38/ 100

An EatBetter score computed from fiber, protein and calorie density. A high score means staying full longer on the same calories.

Both scores are calculated per 100 g and do not change with the selected portion. The satiety score is EatBetter's own calculation, not a clinical measure.

Water kefir Glycemic Index

GLYCEMIC INDEX

Medium

0 Low5570100

GLYCEMIC LOAD

Low

Accounts for portion size — a more realistic measure than GI alone.

How to Burn Off Water kefir

To burn the 20 calories in 100 g:

🚶

5min

Walking (5 km/h)

🏃

2min

Running (8 km/h)

🚴

3min

Cycling

🏊

2min

Swimming

Times are calculated with the MET equation for a 70 kg adult. Actual burn varies with your weight, age and pace.

Is Water kefir Processed?

NOVA 2

Minimally Processed

1. Unprocessed

2. Minimally Processed

3. Processed

4. Ultra-Processed

NOVA classifies foods into 4 groups by industrial processing. NOVA 1 (unprocessed) is the healthiest.

Does Water kefir Contain Allergens?

No known major allergens

Gluten free

Dairy free

Eggs free

Peanuts free

Tree nuts free

Fish free

Soy free

Sesame free

Which Diets Is Water kefir Good For?

Vegan

✓ Suitable

Vegetarian

✓ Suitable

Gluten-Free

✓ Suitable

Dairy-Free

— Not suitable

Mediterranean

✓ Suitable

Paleo

✓ Suitable

Whole30

— Not suitable

DASH

— Not suitable

Keto

— Not suitable

Low FODMAP

— Not suitable

Water kefir Fat Profile

SATURATED

MONOUNSATURATED

POLYUNSATURATED

Compare Water kefir

🥤vs☕️

Water kefir vs Turkish coffee13 kcal more per 100 g

→🥤vs🥛

Water kefir vs Ayran17 kcal fewer per 100 g

→🥤vs🧊🍵

Water kefir vs Iced TeaSame calories per 100 g

→🥤vs🍵

Water kefir vs Tea19 kcal more per 100 g

→

Foods Similar to Water kefir

☕️

Turkish coffee

7 kcal

🥛

Ayran

37 kcal

🧊🍵

Iced Tea

20 kcal

🍵

Tea

1 kcal

🥤

Detox Water

2 kcal

🥤

Soda

42 kcal

☕️

Coffee

2 kcal

🥤

Cola

42 kcal

Frequently Asked Questions About Water kefir

How many calories are in water kefir?

Water kefir contains 20 calories per 100 g. The same serving provides 4.5 g of carbohydrates, 0.1 g of protein, and 0 g of fat.

Is water kefir suitable for a vegan and gluten-free diet?

Yes, water kefir is compatible with vegan and gluten-free diets. It also fits vegetarian, paleo, Mediterranean, flexitarian, and omnivore eating patterns.

Have another question about Water kefir?

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Nutrition data compiled from USDA FoodData Central and scientific sources.

· Last updated: September 23, 2026