Although losing weight is a very complicated process from the biological level, it ultimately depends on one main factor: creating a calorie gap.

In order for this process to happen, the stored fat must be released from the cells first, and green tea seems to help this process. The key factors behind this process are caffeine and green tea polyphenols (EGCG), which can release norepinephrine synergistically.

Norepinephrine is a very powerful fat-burning neurotransmitter, which can improve the body's ability to mobilize fat. Caffeine can directly increase the amount of norepinephrine, while EGCG can inhibit the enzyme that decomposes norepinephrine.

Green tea also seems to increase metabolic rate by regulating some hormones related to heat production. So it seems that the fat-reducing effect of green tea is still good.

How significant is the fat burning effect of green tea?

Green tea is a special substance, which can help burn fat in theory, but the real question is whether it is effective in the real world. Does the degree to which green tea burns fat actually benefit your fat reduction plan? It depends.

First of all, in order to get obvious fat-burning advantages from green tea, you should take a lot of green tea extract in the form of tonic. This is because it is difficult for EGCG, the key compound burning fat in green tea, to get enough from drinking only green tea.

Only when you consume 400-500mg EGCG every day can you see the obvious fat-reducing advantage, while a cup of green tea can only provide 50mg EGCG.