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Food · Dairy and Egg Products

Kefir

Kefir: 104 kcal and 9.21 g protein per 1 glass (243 g). Full USDA nutrition — 48 nutrients, high in Vitamin A (RAE), Vitamin D, Calcium.

Vegetarian · Gluten-free · High-protein


Kefir
Per portion
104 kcal
Protein
9.21 g
Carbs
11.59 g
Fat
2.48 g
Fibre
0.0 g

Your portion

104kcal · 442 kJ
Protein
9.21 g
Carbs
11.59 g
Fat
2.48 g

A glass of lowfat plain kefir is mostly water, with a creamy, drinkable texture. Its calories come roughly evenly from protein and carbs, with very little fat. What makes it stand out is that protein makes up about 35% of its energy, and a single glass delivers meaningful amounts of vitamin A, vitamin D, calcium, and phosphorus, covering around a fifth or more of daily reference needs for the first two.

A standard one-glass serving works well as a quick breakfast or an afternoon snack that actually holds you over, thanks to the protein. It is fine on its own, or you can pair it with fruit or a handful of nuts for more fiber and healthy fats. Since it contains about 11 grams of naturally occurring milk sugars, it is not a low-sugar choice, but for most people that is a fair trade for the nutrient package.

Nutrition claims, per 100 g:

High protein Source Vitamin A (RAE) · 21% Source Vitamin D · 20% Source Calcium · 16% Source Phosphorus · 15% Low fat

Full nutrition

Nutrition

per 1 glass (243 g)

Energy 104 kcal 5.2%
Energy 442 kJ 5.3%
Protein 9.21 g 18.4%
Carbohydrates 11.59 g 4.5%
of which sugars 11.2 g 12.4%
Fibre 0.0 g
Fat 2.48 g 3.5%
of which saturates 1.6 g 8.0%
Monounsaturated 0.75 g
Polyunsaturated 0.13 g
Trans fat 0.09 g
Cholesterol 12.15 mg
Water 217.97 g
Ash 1.75 g

Sugar breakdown

Sucrose 0.0 g
Glucose 0.0 g
Fructose 0.0 g
Lactose 8.99 g
Maltose 0.0 g
Galactose 2.21 g

Minerals

Potassium 398.52 mg 19.9%
Calcium 315.9 mg 39.5%
Magnesium 29.16 mg 7.8%
Phosphorus 255.15 mg 36.4%
Sodium 97.2 mg
Iron 0.1 mg 0.7%
Zinc 1.12 mg 11.2%
Copper 0.02 mg 2.0%
Manganese 0.01 mg 0.5%
Selenium 8.75 µg 15.9%

Vitamins

Vitamin A (RAE) 415.53 µg 51.9%
Vitamin C 0.49 mg 0.6%
Vitamin D 2.43 µg 48.6%
Vitamin E 0.05 mg 0.4%
Vitamin K 0.24 µg 0.3%
Thiamin (B1) 0.07 mg 6.4%
Riboflavin (B2) 0.33 mg 23.6%
Niacin (B3) 0.36 mg 2.2%
Pantothenic acid (B5) 0.94 mg 15.7%
Vitamin B6 0.14 mg 10.0%
Folate (B9) 31.59 µg 15.8%
Vitamin B12 0.7 µg 28.0%
Choline 36.94 mg
Beta-carotene 0.0 µg

Fatty acids

Omega-3 (ALA) 0.01 g
Omega-3 (EPA) 0.0 g
Omega-3 (DHA) 0.0 g
Omega-6 (linoleic) 0.07 g

Nutrition from USDA FoodData Central (public domain), scaled to the stated portion. Reference intakes: EU Regulation 1169/2011. Percentages track your portion; claim badges are per 100 g (Reg. 1169/2011, 1924/2006).

How it compares

Against 322 other foods in “Dairy and Egg Products”, per 100 g. The mark is this food; the faint line is the category median.

Energy 43.0 · higher than 4%
Protein 3.79 · higher than 25%
Fibre 0.0 · higher than 0%

Common portions

  • cup — 243 g (104 kcal)
  • bottle — 971 g (418 kcal)

Sources

  1. USDA FoodData Central — Kefir, lowfat, plain, LIFEWAY — Nutrition values for Kefir, lowfat, plain, LIFEWAY.

Jan Horák — Founder & Engineer, Kaloria

Jan Horák is the founder and lead engineer of Kaloria, an AI-powered calorie and nutrition tracking app for iOS and Android. He builds and ships the app's photo and voice food-logging pipeline himself and writes about the nutrition math, product tradeoffs, and app-comparison data behind it.