Coffee and green tea accelerates a metabolism. Caffeine strengthens palpitation. That is accelerates burning of calories. EGCG has an exciting impact, but excites not heart, but a brain and nervous system. But the effect is, however, the same.
Besides, strictly scientific fact confirmed with the Canadian dieticians is that the combination of caffeine and 90 mg of EGCG three times a day help to lose 25 kcal a day even if you stay in an absolute rest and relaxation condition. Besides, tests on the Canadian military men have shown that the cup of morning strong coffee throughout half-days not only raises endurance, but also increases saturation of blood with oxygen. And it, in its turn, accelerates metabolism process in an organism. In an extract of green tea the natural connected caffeine accelerates a metabolism on 10-16 %, promotes liberation of fat acids from fatty tissues.