
Kvass is a traditional fermented beverage, typically made from dark rye bread or beets, originating in Eastern Europe. It has a mildly alcoholic, tangy, and slightly sweet flavor, often enjoyed as a refreshing summer drink.
Kvass is primarily a source of carbohydrates from its natural sugars and is low in fat and protein. It provides small amounts of B vitamins and minerals like potassium, with a calorie count around 40-50 per cup.
| Calories | 45 kcal |
| Protein | 1 g |
| Carbs | 10 g |
| Fat | 0 g |
| Fiber | 0 g |
| Sugar | 8 g |
| Sodium | 25 mg |
| Potassium | 150 mg |
| Vitamin B1 (Thiamine) | 0.02 mg |
| Vitamin B2 (Riboflavin) | 0.01 mg |
| Vitamin B3 (Niacin) | 0.3 mg |
| Vitamin B6 | 0.02 mg |
| Folate | 5 mcg |
| Magnesium | 5 mg |
| Iron | 0.3 mg |
Per 1 cup (240 g) · estimated, varies by recipe
Kvass is a classic example of a 'probiotic' food, as its natural fermentation process can introduce beneficial bacteria to the gut. Historically, it was valued not just as a drink but as a source of hydration and nutrients in regions where clean water was scarce.