You can get a taste of authentic Lithuanian cuisine by trying cold beetroot soup, made with natural beet juice and kefir. The latter gives an indescribably refreshing taste to this cold soup. Kefir is one of the oldest fermented milk drinks known to humanity; it is low-calorie (with just 59 kcal in 100 g) and has a positive effect on many bodily functions. Every Lithuanian family makes this low-calorie soup according to their own recipe.