Green tea side effects: Facts you must be aware of
Green tea side effects: Facts you must be aware of
The reputation of beverages is not quite good in the terms of healthy diet yet. But green tea is considered as the healthy beverage which does not affect bad to your health and can make your body and brain healthy.
Although black tea is quite popular but due to its side effects peole are coming nearer to green tea.
Green tea got the fame due to its two mind blowing benefits which the world is in urge of:
Weight loss
Anti-cancerous
Green tea for weight loss
People generally avoid carbohydrates and fats rich diet and survive mostly on fruits and fruit juices when they are on the pathway of losing weight.
Why are fruits suggested while planning for weight loss?
Almost all fruits contain flavonoids which can elevate metabolism rate to increase oxidation of fats.
The same happens with the green tea, researchers say.
Green tea contains flavonoids which increases the rate of oxidation of fats in your body which can also help as brain booster.
You don't have to drink a lot of green tea during the day to lose weight. You just need 2-3 cups a day to lose belly fat, study says.
Green tea contains polyphenols and catechins which are the best source to prevent or slow down the growth of malignant cells.
Green tea is also a good source of antioxidants which reduces the risk of heart diseases and all types of cancers including breast cancer and cervical cancer.
So green tea is good for your health if taken in moderation but there is no evidence regarding its health benefits.
Although green tea does not have any major side effects but it contains caffeine and a lot of caffeine could be dangerous to your health.
Excessive caffeine intake may cause anxiety,depression, bad mood, nervousness, headache, insomnia, vomiting, diarrhea, irritability, confusion, heartburn, disturbance in woman health, convulsions to the ears etc.
People who suffer from caffeine sensitivity may experience stomach problems and heartburn.
Green tea and upset stomach
Green tea has the property of killing the bad bacteria from the stomach and replacing it with the good bacteria to fight with the infections. It is considered good for stomach ache, stomach ulcers, inflammation and bloating.
The caffeine present in green tea may increase acid associated with your digestive process. This can worsen the condition of stomach giving rise to nausea and bloating.
Some studies say that green tea prevents stomach cancer or it is used for the treatment of stomach cancer but the research is not proven and the information regarding this is also not sufficient.
If you feel allergic reactions with green tea consumption like bloating and upset stomach, you should avoid it or consult your doctor.
Excessive intake of green tea may cause diarrhea and if you are new user you can suffer more. Mostly it should be a mild diarrhea which could recover by itself but if the condition becomes severe consult your doctor. But the severity cases are rare.
One thing that you should not take green tea in an empty stomach. Most people have the habit of taking tea in the morning as the first food. It should not be your first food and if you are taking green tea in an empty stomach then take some snacks like biscuits or other meals with it.
Taking green tea with some meals can reduce the effect of caffeine and protect your stomach from its ill effects.
Green tea is considered as brain tea as it is loaded with antioxidants which improves brain functions like depression, anxiety, stress, bad mood etc.
Studies say that green tea may boost your memory and enhances brain's other cognitive functions.
Because of the presence of caffeine, green tea may cause headaches. The headaches may be mild or severe depends on the particular person.
Excessive intake of green tea causes iron deficiency in your body and this may also be responsible for headaches.
Green tea excessive intake may also cause dizziness, bad mood, nausea, anxiety, depression in many persons.
The worst effect of caffeine containing products are that they may cause insomnia. If you are already suffering from diseases which may cause insomnia like thyroid and depression then caffeine intake may sometimes worsen your conditions of sleeping problems.
It is said that green tea fights dementia and Alzheimer's disease but the study does not came to be popular because it was not proven.
If you are sensitive to caffeine you are more prone to its side effects.
Your brain health is totally affected by your stomach health. When you are suffering from brain issues like depression, anxiety, stress etc. it is mostly true that you suffer from certain stomach issues.
So if green tea may cause upset stomach, irritability, bloating it may also cause depression, anxiety, stress because of the harmful effect of caffeine in it.
Studies say that green tea is an antioxidant and it fights bad cholesterol, so it is good for your heart.
Remember a single cup of green tea a day could neither boost up your heart and brain and nor can do bad to your body.
But excess of green tea provides excess of caffeine which can faster your heart rate or it can make your heart beat running at a fast pace. This can even cause heart burn or heart pain and irritability in the stomach also.
So green tea allergies to some person can cause heart burn, faster heart beat, nausea and vomiting.
Black tea is also not getting good reputations due to its caffeine properties but people are more attracted towards it because of its good taste. All beverages contains caffeine and caffeine may trigger nausea, vomiting and insomnia to most of the people whose intake is quite high.
Animal studies say that green tea may benefit bone health and researchers says that it can treat osteoporosis and other major bone diseases. But this study was not proved and having no evidence in humans.
Rather caffeine intake in large quantity may harm the bones.
Green tea is high in antioxidants and minerals like calcium that could be flushed out during urination making your body calcium deficient.
Calcium deficiency can trigger bone diseases like osteoporosis. Older people are more effected by osteoporosis and other bone diseases due to calcium deficiency.
No doubt green tea is healthy due to its antioxidant properties.
It also contain catechins (antioxidant compound) which is beneficial only if the intake is limited.
If the intake of catechins is high in your body it could be a major reason of liver damage.
Too much herbal supplements are not good for your liver which is called herbal hepatotoxicity. It means that too much herbs intoxicate your liver and affects its functions giving rise to many stomach problems.
Hepatotoxicity is the rare case but excess intake of green tea gives rise to it.
As you know that too much caffeine can increase blood pressure by stimulating blood flow and can result in the kidney failure if the condition is massive.
One of the risk factor is that green tea contains oxalate. These oxalate mixes with calcium to form calcium oxalate.
Calcium oxalate generally forms abnormal kidney stones which may grow larger and becomes difficult to pass through urination.
The cases of kidney stones are increasing due to oxalate consumption and dehydration.
Most of the cases of kidney stones are noted as calcium oxalate kidney stones.
Persons who are more prone to kidney stone development due to their daily routine, previous medications, diets etc. they should avoid green tea as they tend to develop calcium oxalate stones quite often.
Green tea has the property to make your body water scarce as it acts as natural diuretic and if intake of green tea is in large quantity the number of urination increases making your body dehydrated. So always drink a lot of fluid in such conditions.
Consumption of green tea in excess increases pressure inside the eye which may last for long time and give rise to Glaucoma.
Green tea comes from the leaves of Camellia Senesis plant from China which contains caffeine and tannin. In comparison to coffee caffeine content is lesser in green tea. But tannin is quite higher.
Green tea has the ability to absorb iron due to the presence of tannin in them. So it is advised not to take green tea in an empty stomach as it enhances the process.
Although tannin has anti cancerous properties but they also decreases the digestible property of proteins.
You have always heard that children are avoided to take any type of tea either black tea or green tea. This is because they have sensitive metabolisms which can react strongly with caffeine, tannins and refined sugar.
A little of green tea is beneficial but children don't need to drink tea.
As children are most sensitive they may feel problems like:
Headache
Sleep problems
Vomiting
Diarrhea
Irritability
Dizziness
Irregular heartbeat
Heartburn
Acid reflux
Convulsions
Green tea absorbs iron so your child could suffer from anaemia if intake is high.
Growing children are in need of good amount of calcium to make their bones stronger. Green tea has the property of increased calcium to be flushed out during urination.
Food allergy is quite common in children. They could suffer from allergies after consumption of green tea.
Green tea contains a high amount of oxalic acid and calcium oxalate could be responsible for developing kidney stones.
Studies say that drinking a small cup of green tea regularly could make your child fight with influenza but it can make his body deficient in thiamine. Thiamine deficiency can cause beriberi and irregular heart beat.
Green tea does not cause any type of cancers. But there is no evidence that it treats cancer or even prevent it.
Certain studies suggest that green tea could reduce the risk of mouth cancers, lung cancers, stomach cancers, breast cancers, bladder cancers and almost all types of cancers.
Another analysis suggested that green tea could also treat cancer but it is highly avoided with chemotherapy and other medications.
No studies yet gives any evidence of treating cancers with green tea.
Green tea could affect the thyroid gland due to the presence of catechins in it. Catechins can reduce the production of T3 and T4 harmones and if you are already on thyroid medication you must reduce the intake of green tea consumption.
Although catechins are anti-carcinogenic but they may block the production of thyroid harmones. And it could increase the risk of thyroid cancer.
One major problem with green tea is that it causes frequent urination.
Like other tea green tea is a beverage and contains caffeine. Caffeine containing products make you dehydrated.
Green tea should not be taken by person who is suffering from some infections of bladder or urinary tract infections (UTI). As because they are needed to stay hydrated by drinking a lot of water.
If you have caffeine sensitivity you could also suffer from frequent urination.
Those who suffer from Urinary tract infections they should avoid caffeine and tannin, study says.
Green tea is a caffeine containing product. Caffeine is a diuretic which should be taken in very low quantity during pregnancy. Being a diuretic if green tea is taken in larger quantity the number of urination increases making your body dehydrated.
To be hydrated is quite essential during pregnancy. Lack of water in your body during pregnancy could imbalance the electrolytes of your body.
Doctors don't suggest intake of green tea more than two cups during pregnancy and breast feeding.
Excess consumption of caffeine (any tea) during pregnancy could cause abortion also.
Although there is no evidence but researchers say that excess green tea consumption can lower fertility also. Animal studies shows a declining ability to produce offsprings. There is no evidence in humans.
Green tea is acidic in nature. It can cause stomach problems during pregnancy if intake is in excess. It can cause gastritis and bowel irritability which can further cause many other problems to the pregnant woman and foetus both.
Lactating mothers are advised to drink more water to stay hydrated. Excess consumption of green tea can alter the process.
Green tea should not be consumed when you are on other medications as this may interact with certain medications and give undesirable results.
With certain medications green tea may cause various problems like:
Insomnia
Agitation
Stress
Tremors
Depression
Hypertension
Bad mood
Confusion
If you are taking long term antibiotics and blood thinners green tea could be harmful and reduce the benefits of medicines.
Green tea does not harm if taken in moderate quantity i.e, 2-3 cups a day. If consumed more than 2-3 cups a day it may give undesirable results to your stomach, heart and brain.
Excess intake may also effect your reproductive health and reduces fertility.
Green tea does not cause cancer but there is no solid evidence that it prevents or treat cancer.
Green tea is also available in supplement form.
In supplement form also green tea contains caffeine and tannin. So Supplements are also not suggested to be taken in an empty stomach.
Caffeine sensitivity again could cause acid reflux, gastritis, constipation, anxiety, stress, depression etc.
So if you are thinking of taking green tea supplements for weight loss you must first check your caffeine sensitivity and if problems persist consult your doctor.
Many green tea supplements are getting popularity mainly for weight loss but there is no evidence that they works.
If taken in large quantity they may cause liver and kidney disorders.
The caffeine present in green tea may increase acid associated with your digestive process. This can worsen the condition of stomach giving rise to nausea and bloating.
Some studies say that green tea prevents stomach cancer or it is used for the treatment of stomach cancer but the research is not proven and the information regarding this is also not sufficient.
If you feel allergic reactions with green tea consumption like bloating and upset stomach, you should avoid it or consult your doctor.
Excessive intake of green tea may cause diarrhea and if you are new user you can suffer more. Mostly it should be a mild diarrhea which could recover by itself but if the condition becomes severe consult your doctor. But the severity cases are rare.
One thing that you should not take green tea in an empty stomach. Most people have the habit of taking tea in the morning as the first food. It should not be your first food and if you are taking green tea in an empty stomach then take some snacks like biscuits or other meals with it.
Taking green tea with some meals can reduce the effect of caffeine and protect your stomach from its ill effects.
Green tea and brain problems
Green tea is considered as brain tea as it is loaded with antioxidants which improves brain functions like depression, anxiety, stress, bad mood etc.
Studies say that green tea may boost your memory and enhances brain's other cognitive functions.
Because of the presence of caffeine, green tea may cause headaches. The headaches may be mild or severe depends on the particular person.
Excessive intake of green tea causes iron deficiency in your body and this may also be responsible for headaches.
Green tea excessive intake may also cause dizziness, bad mood, nausea, anxiety, depression in many persons.
The worst effect of caffeine containing products are that they may cause insomnia. If you are already suffering from diseases which may cause insomnia like thyroid and depression then caffeine intake may sometimes worsen your conditions of sleeping problems.
It is said that green tea fights dementia and Alzheimer's disease but the study does not came to be popular because it was not proven.
If you are sensitive to caffeine you are more prone to its side effects.
Your brain health is totally affected by your stomach health. When you are suffering from brain issues like depression, anxiety, stress etc. it is mostly true that you suffer from certain stomach issues.
So if green tea may cause upset stomach, irritability, bloating it may also cause depression, anxiety, stress because of the harmful effect of caffeine in it.
Green tea and heart
Studies say that green tea is an antioxidant and it fights bad cholesterol, so it is good for your heart.
Remember a single cup of green tea a day could neither boost up your heart and brain and nor can do bad to your body.
But excess of green tea provides excess of caffeine which can faster your heart rate or it can make your heart beat running at a fast pace. This can even cause heart burn or heart pain and irritability in the stomach also.
So green tea allergies to some person can cause heart burn, faster heart beat, nausea and vomiting.
Black tea is also not getting good reputations due to its caffeine properties but people are more attracted towards it because of its good taste. All beverages contains caffeine and caffeine may trigger nausea, vomiting and insomnia to most of the people whose intake is quite high.
Green tea and bone diseases
Animal studies say that green tea may benefit bone health and researchers says that it can treat osteoporosis and other major bone diseases. But this study was not proved and having no evidence in humans.
Rather caffeine intake in large quantity may harm the bones.
Green tea is high in antioxidants and minerals like calcium that could be flushed out during urination making your body calcium deficient.
Calcium deficiency can trigger bone diseases like osteoporosis. Older people are more effected by osteoporosis and other bone diseases due to calcium deficiency.
Green tea and liver disease
No doubt green tea is healthy due to its antioxidant properties.
It also contain catechins (antioxidant compound) which is beneficial only if the intake is limited.
If the intake of catechins is high in your body it could be a major reason of liver damage.
Too much herbal supplements are not good for your liver which is called herbal hepatotoxicity. It means that too much herbs intoxicate your liver and affects its functions giving rise to many stomach problems.
Hepatotoxicity is the rare case but excess intake of green tea gives rise to it.
Green tea and kidneys
As you know that too much caffeine can increase blood pressure by stimulating blood flow and can result in the kidney failure if the condition is massive.
One of the risk factor is that green tea contains oxalate. These oxalate mixes with calcium to form calcium oxalate.
Calcium oxalate generally forms abnormal kidney stones which may grow larger and becomes difficult to pass through urination.
The cases of kidney stones are increasing due to oxalate consumption and dehydration.
Most of the cases of kidney stones are noted as calcium oxalate kidney stones.
Persons who are more prone to kidney stone development due to their daily routine, previous medications, diets etc. they should avoid green tea as they tend to develop calcium oxalate stones quite often.
Green tea has the property to make your body water scarce as it acts as natural diuretic and if intake of green tea is in large quantity the number of urination increases making your body dehydrated. So always drink a lot of fluid in such conditions.
Green tea and Glaucoma
Consumption of green tea in excess increases pressure inside the eye which may last for long time and give rise to Glaucoma.
Green tea and children
Green tea comes from the leaves of Camellia Senesis plant from China which contains caffeine and tannin. In comparison to coffee caffeine content is lesser in green tea. But tannin is quite higher.
Green tea has the ability to absorb iron due to the presence of tannin in them. So it is advised not to take green tea in an empty stomach as it enhances the process.
Although tannin has anti cancerous properties but they also decreases the digestible property of proteins.
You have always heard that children are avoided to take any type of tea either black tea or green tea. This is because they have sensitive metabolisms which can react strongly with caffeine, tannins and refined sugar.
A little of green tea is beneficial but children don't need to drink tea.
As children are most sensitive they may feel problems like:
Headache
Sleep problems
Vomiting
Diarrhea
Irritability
Dizziness
Irregular heartbeat
Heartburn
Acid reflux
Convulsions
Green tea absorbs iron so your child could suffer from anaemia if intake is high.
Growing children are in need of good amount of calcium to make their bones stronger. Green tea has the property of increased calcium to be flushed out during urination.
Food allergy is quite common in children. They could suffer from allergies after consumption of green tea.
Green tea contains a high amount of oxalic acid and calcium oxalate could be responsible for developing kidney stones.
Studies say that drinking a small cup of green tea regularly could make your child fight with influenza but it can make his body deficient in thiamine. Thiamine deficiency can cause beriberi and irregular heart beat.
Green tea and cancer
Green tea does not cause any type of cancers. But there is no evidence that it treats cancer or even prevent it.
Certain studies suggest that green tea could reduce the risk of mouth cancers, lung cancers, stomach cancers, breast cancers, bladder cancers and almost all types of cancers.
Another analysis suggested that green tea could also treat cancer but it is highly avoided with chemotherapy and other medications.
No studies yet gives any evidence of treating cancers with green tea.
Green tea and thyroid
Green tea could affect the thyroid gland due to the presence of catechins in it. Catechins can reduce the production of T3 and T4 harmones and if you are already on thyroid medication you must reduce the intake of green tea consumption.
Although catechins are anti-carcinogenic but they may block the production of thyroid harmones. And it could increase the risk of thyroid cancer.
Green tea and frequent urination
One major problem with green tea is that it causes frequent urination.
Like other tea green tea is a beverage and contains caffeine. Caffeine containing products make you dehydrated.
Green tea should not be taken by person who is suffering from some infections of bladder or urinary tract infections (UTI). As because they are needed to stay hydrated by drinking a lot of water.
If you have caffeine sensitivity you could also suffer from frequent urination.
Those who suffer from Urinary tract infections they should avoid caffeine and tannin, study says.
Green tea and Woman health
Green tea is a caffeine containing product. Caffeine is a diuretic which should be taken in very low quantity during pregnancy. Being a diuretic if green tea is taken in larger quantity the number of urination increases making your body dehydrated.
To be hydrated is quite essential during pregnancy. Lack of water in your body during pregnancy could imbalance the electrolytes of your body.
Doctors don't suggest intake of green tea more than two cups during pregnancy and breast feeding.
Excess consumption of caffeine (any tea) during pregnancy could cause abortion also.
Although there is no evidence but researchers say that excess green tea consumption can lower fertility also. Animal studies shows a declining ability to produce offsprings. There is no evidence in humans.
Green tea is acidic in nature. It can cause stomach problems during pregnancy if intake is in excess. It can cause gastritis and bowel irritability which can further cause many other problems to the pregnant woman and foetus both.
Lactating mothers are advised to drink more water to stay hydrated. Excess consumption of green tea can alter the process.
Green tea and other medications
Green tea should not be consumed when you are on other medications as this may interact with certain medications and give undesirable results.
With certain medications green tea may cause various problems like:
Insomnia
Agitation
Stress
Tremors
Depression
Hypertension
Bad mood
Confusion
If you are taking long term antibiotics and blood thinners green tea could be harmful and reduce the benefits of medicines.
Conclusion
Green tea does not harm if taken in moderate quantity i.e, 2-3 cups a day. If consumed more than 2-3 cups a day it may give undesirable results to your stomach, heart and brain.
Excess intake may also effect your reproductive health and reduces fertility.
Green tea does not cause cancer but there is no solid evidence that it prevents or treat cancer.
Green tea is also available in supplement form.
In supplement form also green tea contains caffeine and tannin. So Supplements are also not suggested to be taken in an empty stomach.
Caffeine sensitivity again could cause acid reflux, gastritis, constipation, anxiety, stress, depression etc.
So if you are thinking of taking green tea supplements for weight loss you must first check your caffeine sensitivity and if problems persist consult your doctor.
Many green tea supplements are getting popularity mainly for weight loss but there is no evidence that they works.
If taken in large quantity they may cause liver and kidney disorders.
Labels: Brain health, Stomach health
posted by Simple is sample @ March 07, 2018
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