1, weight loss effect of green tea and black tea
First, green tea to lose weight
After tea leaves are picked, they come into contact with oxygen in the air and undergo enzymatic oxidation, which is called fermentation, while green tea skips this operation and directly kills anthocyanins to make tea leaves. Because it has not been fermented, green tea can retain most nutrients, especially catechins, which can help burn fat.
1, catechin can help relieve greasy and fat.
In the case of excluding caffeine, catechins in tea can also promote metabolism and continue to help fat metabolism. Catechin is the source of astringency of green tea. In fact, both green tea and black tea contain catechins, but at present, it is considered that the content of catechins in unfermented green tea is high. Catechins can enhance heat energy production, promote fat oxidation and 24-hour heat consumption rate, stimulate fat hydrolysis and inhibit the activity of pancreatic lipolytic enzymes.
Drinking 1 cup of green tea after meals can prevent the rapid rise of blood sugar and reduce the secretion of hormones that help fat accumulation.
2. Lower blood pressure and cholesterol.
Tannic acid in green tea has a very obvious antihypertensive effect, which can not only inhibit the increase of blood pressure, but also lower blood pressure.
Some studies have also pointed out that tannic acid can remove excess cholesterol from blood, control the evolution speed of arteriosclerosis to a minimum, and help prevent brain thrombosis and myocardial infarction.
Second, black tea to lose weight
For people who don't like coffee but want to lose weight by caffeine, black tea is an excellent substitute! If measured by volume, the caffeine content of coffee is more than that of black tea, but if measured by weight, the caffeine content of black tea leaves is twice that of coffee beans. Black tea also contains theaflavins, which can warm the body and promote metabolism. It's worth a try.
1, caffeine improves fat burning ability
Black tea contains caffeine, which can decompose fat, decompose accumulated body fat into blood, and double the burning power of fat during exercise.
Caffeine also has diuretic effect, which can stimulate the kidneys, dilate blood vessels, improve water metabolism and discharge excess water and old waste.
Caffeine can also activate the secretion of gastric juice and promote digestion, but people with bad stomach should be careful not to take too much!
2. Ginger black tea helps metabolism.
Tea contains theaflavins, which can warm the body, while ginger contains gingerol, which will be converted into gingerol after heating, and also has the effect of warming the body.
Peeling ginger, grinding it into ginger paste and drinking it with black tea can increase the effect of burning fat.
Eating ginger paste can also ingest dietary fiber and improve constipation.
For women, the happiest thing is that ginger can also regulate cold constitution. Even if you don't lose weight, you might as well try it for your health. As long as you get up every morning, make a cup of hot black tea and add a little ginger paste, you can warm your body, improve your metabolism and increase your weight loss 1 day!
2. The difference between green tea and black tea
1, different manufacturing processes
Green tea: Green tea has not been fermented. When making green tea, put the fresh and tender tea leaves into an iron pot at about 200℃ and stir fry quickly until the water evaporates.
Black tea: Black tea is fermented tea. To make black tea, tea leaves should be crushed and squeezed out first, then stored and fermented for a certain period of time, and then baked at high temperature.
Step 2: Different colors
Green tea: chlorophyll in green tea is not easy to be destroyed during frying, and the tea leaves are green.
Black tea: Chlorophyll in black tea leaves is destroyed during fermentation, and tannic acid in tea leaves is oxidized to form red oxide, so black tea is generally reddish brown.
3. Different tastes
Green tea: Green tea has the characteristics of "clear soup color and strong taste convergence", which is fresh and mellow, refreshing and pleasant, astringent and cooler than black tea and suitable for drinking in summer.
Black tea: Black tea soup is red in color, mellow in taste, fresh and cool in taste and warm in nature. You can drink it in winter, which has the effect of warming your stomach.
4. Different nutrients
Green tea: Green tea retains more natural substances of fresh leaves. Among them, tea polyphenols and caffeine retain more than 85% of fresh leaves and about 50% of chlorophyll, with less vitamin loss. Studies have shown that the natural ingredients retained in green tea have certain effects on anti-aging, anti-cancer, anti-cancer, sterilization and anti-inflammation.
Black tea: During the processing of black tea, the chemical composition of its fresh leaves changed greatly due to the oxidation reaction, and the tea polyphenols decreased by more than 90%. However, new ingredients such as theaflavins and thearubigins have been produced, which are rich in fragrance and bright in leaf color, which are helpful for digestion, appetite increase, diuresis and swelling reduction.
5. The medicinal value is different.
Green tea: green tea tastes bitter, sweet and cool, enters the heart, lungs and stomach meridians, can excite the brain, reduce qi and promote digestion, sober up and resolve phlegm, dispel wind and relieve exterior syndrome, benefit qi and strengthen teeth. Can be used for treating headache, lethargy, dysphoria, dyspepsia, phlegm, malaria, dysentery and drunkenness.
Black tea: black tea tastes bitter and sweet, warm in nature, and enters the heart, kidney and stomach meridians; Awakening the brain and improving eyesight, reducing qi and promoting digestion, resolving phlegm and stopping dysentery, inducing diuresis and relieving alcoholism, expelling wind and relieving exterior syndrome. Can be used for treating mental fatigue, dyspepsia, dysentery, abdominal distension, alcoholism, common cold and common cold.
6. Substitute tea
Green tea: Biluochun, Emeishan Tea, West Lake Longjing, Lushan Wu Yun, Song Feng Green Tea and Huangshan Mao Feng are all green teas.
Black tea: Qimen black tea is the most famous, such as Dianhong, Huohong, Hong Ying and Ninghong.