in recent years, drinking tea to lose weight is quite popular, among which drinking Pu’er tea to lose weight is a common one. Can you really lose weight by drinking Pu’er tea? In fact, the key to weight loss and weight loss is to eat less energy and to control the energy consumption. What are the ingredients in
Pu’er tea? Pu’er tea is a kind of post fermented tea made from green tea through bacterial fermentation, which belongs to black tea. Therefore, the composition of Pu’er tea and green tea are very close in fact, both contain rich flavonoids antioxidant substances, such as tea polyphenols, catechins and so on. However, due to different processes, the antioxidant substances in Pu’er tea are also slightly different. For example, green tea contains more EGCG (epigallocatechin gallate, the highest content of catechins), while Pu’er tea contains less EGCG. In addition, tea also contains more caffeine.
some people say that the caffeine in tea can make people excited, excited can help lose weight. Caffeine makes people excited, the basic metabolic energy consumption of the human body is increased, the exercise ability is enhanced, the energy consumption is more, but it has little effect on the basic metabolism. So the caffeine in tea doesn’t help you lose weight.
also said that antioxidant substances in tea, such as tea polyphenols, catechins, EGCG and other substances can help weight loss. As early as the 1980s, Japanese scholars first published research that found that Pu’er tea can help reduce the abdominal tissue weight of high-fat mice. Later, many animal experiments have found that tea polyphenols, catechins, EGCG and other antioxidants may inhibit obesity by affecting the physiological functions of adipocytes and preadipocytes. However, the amount of tea polyphenols extracted from tea used in animal experiments is very large, and it is difficult for ordinary people to drink so much tea every day. So what is the situation in human studies? In 2002, in a preliminary study of moderately obese individuals in France, after 12 weeks of administration of the special green tea extract (AR25), the average weight loss was 4.6% and the waist circumference was 4.5%. In this experiment, the daily dose of green tea extract could provide 270 mg of EGCG and 150 mg of caffeine, equivalent to 6-7 cups of green tea per day. Several Japanese studies found that even drinking 10 cups of green tea a day did not change the subjects’ body mass index. In fact, most people don’t drink a lot of green tea every day. In 2009, a study in the International Journal of obesity conducted a meta-analysis of previous trials and found that a mixture of antioxidant catechins, EGCG and caffeine in green tea did not help lose weight. Another reason why
think that drinking tea can reduce weight is that “drinking tea can help decompose fat”. It seems that drinking a cup of tea can make the body’s fat decompose itself. In fact, the body’s fat will not be reduced by drinking tea. There is no clinical basis for speeding up the decomposition of fat by drinking tea. No food can burn fat for you. In 2013, researchers from the University of Birmingham, UK, studied 31 adult men. The researchers divided them into three groups for observation. The first group took green tea extract (the amount of green tea extract is equivalent to eight cups of green tea a day), the second group took placebo, the third group took placebo for the first six days, and green tea extract on the last day They did exercise and measured data on lipid oxidation in their blood, and found no change in their lipid oxidation.
combine a number of previous studies. In 2012, Canadian scientists screened and meta analyzed the studies on tea drinking and weight control in several databases. The results showed that tea drinking had no significant effect on adult weight and had no effect on weight loss. Therefore, I hope that I can lose weight by drinking a cup of tea and reading the newspaper every afternoon. It’s better to stop this idea as soon as possible. It’s better to take more exercise during the off-duty time.
however, under certain circumstances, drinking tea can also be regarded as a way of “reducing energy intake”. For example, there are a lot of people, especially some young people nowadays, who like to drink sugary drinks very much. They don’t know that these drinks contain a lot of sugar and drink a lot of energy. If you change the sweet drink to tea, the tea will not have so much sugar, in fact, it will reduce the energy intake, and may still help to lose weight.