The virtues of tea are endless! The weight-loss properties of the drink among the various properties it possesses, are the most sought after. Because it contains fat-burning substances: catechins. The regime tea, is it effective? What are the varieties most active against fat?
People never ceases to repeat that green tea is a powerful antioxidant, which gives it its health virtues. But we do not talk enough about the role of catechins, a group of very active molecules of the family of flavonoids. The epigallocatechol gallate (EGCG) is the most common form in chocolate and black leaf tea.
Catechins to burn fat
Everyone knows the slimming reputation of tea. These properties are now partially clarified. We know that the capabilities of this drink to increase energy expenditure and "burn" fat reserves are due in part to the caffeine it contains. But it was unclear that the catechins also had a key role in regulating weight. However, the benefits of regular consumption of catechins are not limited to the increased energy expenditure and fat oxidation. The catechins act also on the distribution of fat in the body and help reduce weight and waist circumference. Studies have also shown that the consumption of green tea could limit the recovery of lost weight after a diet.
Tea against abdominal fat
A study by the Shanghai Medical School has demonstrated the beneficial effect of catechins on the loss of abdominal fat. The weight, the proportion of body fat, the percentage of intra-abdominal fat and waist circumference were measured at baseline and after 4, 8 and 12 weeks on 4 groups of adults with a diet. 1 group was given a placebo, the other 3 were given different doses of catechins:
Group 2: 440 mg of catechins once a day
Group 3: 230 mg of catechins twice daily (468 mg / day)
Group 4: catechins 440 mg twice daily (886 mg / day)
Result: in the last group, the study noted a significant reduction in weight, waist circumference, body fat and abdominal fat.
Catechins against metabolic syndrome
In addition to their benefits in weight, catechins play a vital role in health care, especially in the prevention of metabolic syndrome. This disorder is characterized by blood glucose (rate of sugar in the blood) and high cholesterol, high blood pressure, and waist circumference exceeding 102 cm for men and 88 cm for women. In these people, often overweight, there is also resistance to insulin, an inflammatory reaction, and oxidative stress associated with the decrease in insulin sensitivity.
It so happens that regular consumption of catechins in green tea regulates considerably this insulin resistance, decreases the incidence of type 2 diabetes in women, regulates the metabolism of carbohydrates, and has an anti-inflammatory effect. The impact of catechins on body mass index (BMI), blood pressure and blood sugar found in patients with metabolic syndrome occurs after consumption of 456 mg daily for 2 months of catechins in green tea. The ideal would be to consume 3 to 6 cups daily.
Choosing the right tea to get your fill of catechins
There are large differences in the concentration of catechins, especially between black tea and green tea. Indeed, shortly after harvest, green tea is subjected to a heat treatment that prevents oxidation of its compounds. It is richer in catechins than black tea. Some brands offer even more green teas are rich in catechins (including Lipton with Linea).
The choice of tea is not enough, it should also be drunk regularly: catechins having a life span of less than 24 hours in the body, it is recommended to renew the consumption of green tea throughout the day.
Finally, we must remember that the tea alone is not enough to lose weight! An appropriate diet and a bit of physical exercise are essential.
Reference: 1st European Symposium on catechins, Paris, January 2008
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Tea Blog Tea Blog is an ongoing project by artist Ellie Harrison launched on 1 January 2006. Every time Ellie has a cup of tea (or a different type of hot drink) she notes down the thought which is most on her minds during the first few sips. These thoughts are then uploaded to the Tea Blog at regular intervals.
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