Sunday, December 28, 2014

Is it ok to drink green tea right before go to bed?

Green tea benefit before go to bed


          Green tea is also powerful. The Chinese have been drinking green tea for more than 2,000 year. But until A.D. 600, green tea was used mainly as a medicinal tonic, not an everyday beverage.

          Like any other herbal medicine, green tea's healing power has to be carefully harnessed. There are times when we should avoid drinking green tea.

          Read through the ten situations below to see if they apply to you. Exercise caution if it does.

Green tea side effects #1

When you suspect that you have too much caffeine.

Caffeine intolerance is the most common cause of green tea side effects.

Green tea contains about half the amount of caffeine found in coffee, so moderate consumption of green tea is unlikely to cause problems for the majority of people.

For those who are sensitive to caffeine, here are symptoms to watch out for:

* restlessness

* irritability

* sleeping problems

* tremor

* heart palpitations

* loss of appetite

* upset stomach
* nausea

* frequent urination

* skin rash

           How much can you safely drink? How to enjoy green tea without the caffeine? How about decaffeinated green tea? 



Green tea side effects #2

When you have a sensitive stomach.

           Stomach upset is the second most common complaint I hear from tea drinkers, after caffeine.

           Caffeine can cause stomach upset. Tea also contains other compounds that cause indigestion by stimulating the production of gastric acid.

 

Green tea side effects #3

When you suffer from, or is susceptible to, iron deficiency anemia.

Green tea reduces the amount of non-heme iron we absorb, but there are ways round it.


Green tea side effects #4

When you have green tea extract tablets.

green tea side effectsTwo studies suggest that green tea extract may be harmful when consumed in large quantity or with other weight loss herbs.

How many tablets can you safely consume without suffering from side effects? There is no clear cut answer, but some guidelines do exist.



Green tea side effects #5

When you are pregnant or are breastfeeding.

Green tea contains caffeine, catechins and tannic acids. All three substances have been linked to pregnancy risks.

Studies suggest that drinking large amount of green tea can cause neural tube birth defect in babies. High consumption of caffeine and tannic acid have been linked to fertility problems and miscarriage risk.

Moderate consumption of green tea is still considered safe, but...



Green tea side effects #6

When you are trying to conceive.

This is an area where further studies are needed. Two small scale studies suggest that green tea may help woman conceive baby. The evidence, though positive, is unsatisfactory.



Green tea side effects #7

When you are undergoing menopause

In preliminary research, green tea has been associated with decreased level of estrogens in the body. It is not clear if significant green tea side effects such as hot flushes may occur. Exercise caution if this is a concern to you.

Nevertheless, a 2003 study suggests that green tea, when taken with other herbs, may alleviate postmenopausal symptoms.


Green tea side effects #8

When you have or are prone to forming kidney stones.

Kidney stones are mineral deposits made up of calcium, uric acid or the amino acid cysteine. At least three quarters of kidney stones are composed of calcium combined with phosphate or oxalic acid. Green tea is a concern because it is rich in oxalic acid.

Recent studies seem to indicate that green tea actually inhibits the formation of urinary stones...


Green tea side effects #9

When you have young children.

Green tea contains caffeine, which may cause anemia and other problems in children. It also contains tannin that inhibits the absorption of protein.

Some experts say green tea is good for children because it prevents tooth decay. That is true, but if you have kids under three, do not let them drink green tea, or any other tea and coffee beverages.

Green tea side effects #10

When you are on medication or have a medical history.

Green tea, like any other tea beverages, can interfere and interact with certain medications. But there are precautions you can take.

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