Medical research has shown that drinking one glass of birch sap every day for 2-3 weeks helps the body to fight spring fatigue, avitaminosis, distraction, fatigue and depression.
Utafiti wa kimatibabu umeonyesha kuwa kunywa glasi moja ya birch sap kila siku kwa wiki 2-3 husaidia mwili kupambana na uchovu wa spring, avitaminosis, kuvuruga, uchovu na unyogovu.