People who drink tea can easily feel the influence of tea on the gastrointestinal tract: they are hungry faster. This is because tea contains complex components such as caffeine, theophylline and theobromine, which can significantly stimulate gastric acid secretion and promote gastric peristalsis. Increased gastric acid secretion (and accelerated gastrointestinal peristalsis) helps food digestion and makes people feel fat-free or hungry faster.

But don't think that "reducing fat fatigue" or "starving" means losing weight, because drinking tea only changes the process and feeling of digestion, not the result of digestion. The energy consumed by three meals a day, whether sugar, protein or fat, will not run away because of drinking tea. Obviously, drinking tea will not change the food intake, nor will it change the composition of feces. It just changes the digestion process from food to feces.

The disadvantages of drinking too much tea:

1, which hinders the absorption of iron by human body.

Tea contains tannic acid, black tea contains about 5%, and green tea contains about 10%. When people drink a lot of strong tea, the combination of tannic acid and iron will be more active, which will hinder and affect the absorption of iron, often manifested as iron deficiency anemia.

2, leading to elevated blood pressure and heart failure.

Caffeine in strong tea will excite people's brains, make their hearts beat faster, and thus raise blood pressure. At the same time, a large amount of strong tea liquid enters the blood vessels, which will increase the burden on the heart, produce discomfort symptoms such as chest tightness and palpitation, and aggravate the degree of heart failure.

Refer to the above? People's Daily Online-Health Myth: Can drinking tea and coffee really help you lose weight?