Kefir (plain) calories
1 glass · 200 ml: about 80–90 kcal. 43 kcal per 100 ml: 3.8 g protein, 4.8 g carbohydrate, 1 g fat.
Approximate value. USDA’s low-fat plain kefir record.

In portions
| Portion | Amount | Calories |
|---|---|---|
| 1 glass | 200 ml | 80–90 kcal |
| 1 bottle | 250 ml | 100–120 kcal |
Nutrition facts (100 ml)
| Energy | 43 kcal |
|---|---|
| Protein | 3.8 g |
| Carbohydrate | 4.8 g |
| Sugar | 4.6 g |
| Fiber | 0 g |
| Fat | 1 g |
| Saturated fat | 0.7 g |
| Sodium | 40 mg |
Where the calories come from: protein 35% · carbohydrate 44% · fat 21%.
Source: USDA FoodData Central record 170904. The same food can vary by ±10% with its variety, recipe and brand.
Frequently asked questions
Kefir (plain): how many ml and calories in 1 glass?
1 glass is about 200 ml on average and has about 80–90 kcal.
Kefir (plain): how many calories in 100 ml?
Per 100 ml there are 43 kcal, 3.8 g of protein, 4.8 g of carbohydrate and 1 g of fat.
Kefir (plain): how much protein does it have?
Per 100 ml there are 3.8 g of protein; 1 glass (200 ml) has about 8 g of protein. About 35% of its calories come from protein.
Kefir (plain): does it make you gain weight?
No single drink makes you gain weight on its own; your weight depends on the day’s total calories. 1 glass (200 ml) has about 86 kcal: about 4% of a 2,000 kcal day (the reference on nutrition labels). Nearly half of its calories come from carbohydrate.
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Similar foods
Among dairy, it is one of the lightest: 43 kcal per 100 ml (average 116 kcal).
- Strained yogurt 1 tablespoon ~24 kcal · 2 g protein
- Cream 1 tablespoon ~51 kcal
- Milk (skim) 1 glass ~68 kcal · 7 g protein
- Kefir (plain) 1 glass ~86 kcal · 8 g protein
- Milk (semi-skimmed) 1 glass ~100 kcal · 7 g protein
- Strained yogurt (fat-free) 1 bowl ~120 kcal · 20 g protein
- Milk (whole) 1 glass ~120 kcal · 6 g protein
- Yogurt (whole milk) 1 bowl ~120 kcal · 7 g protein
- Yogurt (low-fat) 1 bowl ~130 kcal · 11 g protein