{"id":909,"date":"2026-08-17T10:05:00","date_gmt":"2026-08-17T10:05:00","guid":{"rendered":"https:\/\/itea.co.il\/wp\/?page_id=909"},"modified":"2026-08-17T10:05:00","modified_gmt":"2026-08-17T10:05:00","slug":"tea-caffeine","status":"publish","type":"post","link":"https:\/\/itea.co.il\/en\/blog\/tea-caffeine\/","title":{"rendered":"Caffeine in tea"},"content":{"rendered":"<h2>Caffeine content in tea<\/h2>\n<p>Strong tea contains caffeine no less than coffee, but it is combined with tannin in tea, forming a compound of caffeine tannat and catechins, and acts more indirectly, more softly on the cardiovascular and central nervous system. Caffeine in this condition is called theine. The caffeine contained in coffee (which lacks a tannin-catechin complex) acts much stronger and directly on the heart, while theine primarily affects the blood vessels of the brain and central nervous system. 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