Green Tea Extract - Health Encyclopedia
Jul. 15, 2024
Green Tea Extract - Health Encyclopedia
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Green Tea Extract
Botanical name(s):
Camellia sinensis. Family: Theaceae
Other name(s):
green tea, Chinese tea, green sencha tea, Japanese tea, Yame tea
General description
Green tea comes from the plant Camellia sinensis. Black tea, green tea, and oolong tea are all made from the same plant but are prepared using different processing methods.
Green tea extract contains polyphenols. These include the most active type, epigallocatechin gallate. Green tea and oolong tea have the highest levels of polyphenols. This means they have the most health benefits. The fermentation and processing to make black tea decrease the polyphenols. It does this by converting them to theaflavins and thearubigins. All of the teas have catechins and tannins in different amounts.
Other significant parts of tea include caffeine, theobromine, and theophylline. The polyphenols of green tea are strong antioxidants.
Tea is the second-most popular drink in the world. People drink it for its flavor and stimulant effect.
Demonstrated uses
Studies suggest that the polyphenols in tea, especially green tea, may help reduce the risk for some cancers. Or it may slow the growth of certain types of cancers. Studies done in humans have shown mixed results.
Tea is used as a stimulant drink. The methylxanthines, specifically caffeine, increase alertness. It&#;s also a mild stimulant.
Green tea extract ointment has been shown to cure external genital and perianal warts. This product is approved by the FDA. It&#;s available by prescription.
Claims
There may be benefits that have not yet been proven through research.
Green tea may be a mild diuretic. It may help lower cholesterol.
Suggested dosage
Green tea extract comes in oral capsules. It&#;s available in different strengths. Follow the instructions on the package for the correct dose.
Green tea as loose, dried leaves or in tea bags should be steeped in hot water for a short time. Make sure the water isn&#;t scalding. This is done to preserve important chemicals in the leaf.
Side effects
Green tea can cause side effects due to caffeine. These can include anxiety, tremors, irritability, and sleeping problems. This is more likely if you&#;re sensitive to caffeine or take large doses. Side effects are less common with green tea than with other drinks that have caffeine. This is because the leaves are steeped for a shorter time.
The fluoride content of green tea may help prevent tooth decay. But the tea also contains tannic acid. This can stain teeth.
Green tea extracts may cause liver problems. Symptoms can include yellowing of your skin or the whites of your eyes, nausea, and stomach pain. If you have these symptoms, stop using green tea and see your healthcare provider right away. The negative effects of green tea extract on the liver may depend on how much green tea extract you consume each day.
Interactions
Green tea may change the effects of medicines such as nadolol, a beta-blocker used for high blood pressure and heart problems. It may keep nadolol from lowering your blood pressure as much as it should. Green tea contains small amounts of vitamin K. This means it may decrease how well blood thinner medicines work. Since green tea acts as a mild stimulant, you shouldn&#;t use it with other stimulants. It may change the effects of other medicines.
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Talk with your healthcare provider about the use of green tea. Women who are pregnant or breastfeeding should talk to their healthcare providers before taking any herbal medicines.
Green Tea Extract Powder (50% EGCG)
Product Details
What is Green Tea Extract Powder (50% EGCG)?
Green tea extract comes from the Camellia sinensis plant, as does white tea, yellow tea, oolong tea, dark tea, and black tea. Green tea is the least oxidized of the teas and contains the highest levels of Epigallocatechin Gallate (EGCG). EGCG is one of four catechins found in green tea and exerts the most potent effects. Green tea extract owes many of its benefits to its EGCG content. It has antioxidant and anti-inflammatory properties. It also supports heart and brain health and may enhance fat loss. Green tea extract may improve skin health and exercise performance as well.
PureBulk&#;s Green Tea Extract Powder contains at least 50% EGCG.
Potential Green Tea Extract Benefits
Green Tea Extract is Rich in Antioxidants
Green tea isn&#;t fermented like black tea, allowing it to retain its polyphenols and catechins like EGCG. Polyphenols and catechins are natural antioxidants that protect the body from free-radical compounds that destroy healthy cells. EGCG also inhibits pro-inflammatory cytokine activities. In clinical studies, polyphenols provided more antioxidant protection than vitamin E or vitamin C. Polyphenols also improve the performance of the body&#;s own natural antioxidant enzymes, including glutathione, a tripeptide that minimizes inflammation and protects cartilage. EGCG&#;s antioxidant activity also protects brain cells from oxidative stress and heavy metal activity.
Green Tea Supplements + Heart Health
Green tea extract increases the natural antioxidant potential in the blood. It also reduces LDL cholesterol oxidation by simultaneously settling on LDL cholesterol particles and sequestering adjacent free radicals. It also acts as a vasodilator to expand the arteries for improved blood flow. Researchers theorize this is because green tea catechins enhance nitric oxide&#;s bioavailability. Green tea catechins also exert significant inhibitory effects against the enzymes that convert squalene into cholesterol.
Green Tea Supplements + Exercise Performance
The antioxidants in green tea reduce oxidative damage and may delay muscle fatigue. One study noted that green tea extract enhanced the body&#;s antioxidant protection when combined with strength training. Another study showed that green tea extract protected sprinters against oxidative damage during repeated sprint tests. A different clinical trial reported that participants increased their running distance by 10.9% over a four-week period compared to the placebo group.
Green Tea Extract + Weight Loss
Combining green tea extract with caffeine exerts synergistic effects on weight loss. The combined compounds modulate hormones to enhance how many calories the body burns to digest food and generate body heat (thermogenesis). Increasing the body&#;s innate ability to burn calories may facilitate more weight loss. One study noted that participants burned about 179 calories more over a 24-hour period after taking caffeine and green tea extract. However, these effects are more noticeable in individuals who don&#;t regularly consume caffeine.
Green Tea Extract and Skin Health
Green tea extract may improve several aspects of skin health. Topically, it helps relieve redness and irritation. It may improve the overall appearance of the skin by helping with acne, moisturization, and skin aging. Multiple studies noted that topical green tea extract reduced inflammation, premature aging, and the loss of skin elasticity. It may reduce the damaging effects of UV rays, too.
Purity and Concentration
PureBulk's Green Tea Extract Powder (50% EGCG) is a pure green tea extract derived from the leaves of Camellia sinensis L. and is assayed to contain:
- At least 98% polyphenols (at least 80% of these polyphenols are catechins)
- At least 50% of catechins content is EGCG
- Only 2% or less of caffeine
PureBulk&#;s Green Tea Extract Powder contains no fillers, additives, or anti-caking agents.
Mixing and Solubility
Green tea extract 50% (EGCG) is a water-soluble product.
Volumetric Measurements
Note:
It is always recommended to verify these measurements with an accurate digital scale.Warning:
The amounts indicated in this table greatly exceed the recommended serving amount. Measuring Spoon Size CC Miligrams 1 Tablespoon 14.79cc mg 1/2 Tablespoon 7.39cc mg 1 Teaspoon 4.93cc mg 1/2 Teaspoon 2.46cc mg 1/4 Teaspoon 1.23cc 642mg 1/8 Teaspoon 0.62cc 321mg 1/16 Teaspoon 0.31cc 160mg 1/32 Teaspoon 0.15cc 80mgPOTENTIAL SIDE EFFECTS AND CAUTIONS:
Green tea is considered likely safe for most adults, according to the National Institute of Health. Alertness, over-stimulation, and insomnia are possible side effects of taking large amounts. A prolonged high intake of EGCG may cause liver or kidney damage.
EGCG may cause neural tube defects if taken during pregnancy. Individuals with serious medical conditions or pregnant or lactating women should not take this supplement. Consult your physician before use.
References & Research
Tested by Accredited 3rd Party Labs
PureBulk's supplements are tested by accredited third party labs in the USA to ensure their identity, purity and potency. To receive a copy of these test results or any other PureBulk supplement please fill out the COA request form found here.
Green Tea Extract - Health Encyclopedia
Search Encyclopedia
Green Tea Extract
Botanical name(s):
Camellia sinensis. Family: Theaceae
Other name(s):
green tea, Chinese tea, green sencha tea, Japanese tea, Yame tea
General description
Green tea comes from the plant Camellia sinensis. Black tea, green tea, and oolong tea are all made from the same plant but are prepared using different processing methods.
Green tea extract contains polyphenols. These include the most active type, epigallocatechin gallate. Green tea and oolong tea have the highest levels of polyphenols. This means they have the most health benefits. The fermentation and processing to make black tea decrease the polyphenols. It does this by converting them to theaflavins and thearubigins. All of the teas have catechins and tannins in different amounts.
Other significant parts of tea include caffeine, theobromine, and theophylline. The polyphenols of green tea are strong antioxidants.
Tea is the second-most popular drink in the world. People drink it for its flavor and stimulant effect.
Demonstrated uses
Studies suggest that the polyphenols in tea, especially green tea, may help reduce the risk for some cancers. Or it may slow the growth of certain types of cancers. Studies done in humans have shown mixed results.
Tea is used as a stimulant drink. The methylxanthines, specifically caffeine, increase alertness. It&#;s also a mild stimulant.
Green tea extract ointment has been shown to cure external genital and perianal warts. This product is approved by the FDA. It&#;s available by prescription.
Claims
There may be benefits that have not yet been proven through research.
Green tea may be a mild diuretic. It may help lower cholesterol.
Suggested dosage
Green tea extract comes in oral capsules. It&#;s available in different strengths. Follow the instructions on the package for the correct dose.
Green tea as loose, dried leaves or in tea bags should be steeped in hot water for a short time. Make sure the water isn&#;t scalding. This is done to preserve important chemicals in the leaf.
Side effects
Green tea can cause side effects due to caffeine. These can include anxiety, tremors, irritability, and sleeping problems. This is more likely if you&#;re sensitive to caffeine or take large doses. Side effects are less common with green tea than with other drinks that have caffeine. This is because the leaves are steeped for a shorter time.
The fluoride content of green tea may help prevent tooth decay. But the tea also contains tannic acid. This can stain teeth.
Green tea extracts may cause liver problems. Symptoms can include yellowing of your skin or the whites of your eyes, nausea, and stomach pain. If you have these symptoms, stop using green tea and see your healthcare provider right away. The negative effects of green tea extract on the liver may depend on how much green tea extract you consume each day.
Interactions
Green tea may change the effects of medicines such as nadolol, a beta-blocker used for high blood pressure and heart problems. It may keep nadolol from lowering your blood pressure as much as it should. Green tea contains small amounts of vitamin K. This means it may decrease how well blood thinner medicines work. Since green tea acts as a mild stimulant, you shouldn&#;t use it with other stimulants. It may change the effects of other medicines.
Talk with your healthcare provider about the use of green tea. Women who are pregnant or breastfeeding should talk to their healthcare providers before taking any herbal medicines.
Green Tea Extract Powder (50% EGCG)
Product Details
What is Green Tea Extract Powder (50% EGCG)?
Green tea extract comes from the Camellia sinensis plant, as does white tea, yellow tea, oolong tea, dark tea, and black tea. Green tea is the least oxidized of the teas and contains the highest levels of Epigallocatechin Gallate (EGCG). EGCG is one of four catechins found in green tea and exerts the most potent effects. Green tea extract owes many of its benefits to its EGCG content. It has antioxidant and anti-inflammatory properties. It also supports heart and brain health and may enhance fat loss. Green tea extract may improve skin health and exercise performance as well.
PureBulk&#;s Green Tea Extract Powder contains at least 50% EGCG.
Potential Green Tea Extract Benefits
Green Tea Extract is Rich in Antioxidants
Green tea isn&#;t fermented like black tea, allowing it to retain its polyphenols and catechins like EGCG. Polyphenols and catechins are natural antioxidants that protect the body from free-radical compounds that destroy healthy cells. EGCG also inhibits pro-inflammatory cytokine activities. In clinical studies, polyphenols provided more antioxidant protection than vitamin E or vitamin C. Polyphenols also improve the performance of the body&#;s own natural antioxidant enzymes, including glutathione, a tripeptide that minimizes inflammation and protects cartilage. EGCG&#;s antioxidant activity also protects brain cells from oxidative stress and heavy metal activity.
Green Tea Supplements + Heart Health
Green tea extract increases the natural antioxidant potential in the blood. It also reduces LDL cholesterol oxidation by simultaneously settling on LDL cholesterol particles and sequestering adjacent free radicals. It also acts as a vasodilator to expand the arteries for improved blood flow. Researchers theorize this is because green tea catechins enhance nitric oxide&#;s bioavailability. Green tea catechins also exert significant inhibitory effects against the enzymes that convert squalene into cholesterol.
Green Tea Supplements + Exercise Performance
The antioxidants in green tea reduce oxidative damage and may delay muscle fatigue. One study noted that green tea extract enhanced the body&#;s antioxidant protection when combined with strength training. Another study showed that green tea extract protected sprinters against oxidative damage during repeated sprint tests. A different clinical trial reported that participants increased their running distance by 10.9% over a four-week period compared to the placebo group.
Green Tea Extract + Weight Loss
Combining green tea extract with caffeine exerts synergistic effects on weight loss. The combined compounds modulate hormones to enhance how many calories the body burns to digest food and generate body heat (thermogenesis). Increasing the body&#;s innate ability to burn calories may facilitate more weight loss. One study noted that participants burned about 179 calories more over a 24-hour period after taking caffeine and green tea extract. However, these effects are more noticeable in individuals who don&#;t regularly consume caffeine.
Green Tea Extract and Skin Health
Green tea extract may improve several aspects of skin health. Topically, it helps relieve redness and irritation. It may improve the overall appearance of the skin by helping with acne, moisturization, and skin aging. Multiple studies noted that topical green tea extract reduced inflammation, premature aging, and the loss of skin elasticity. It may reduce the damaging effects of UV rays, too.
Purity and Concentration
PureBulk's Green Tea Extract Powder (50% EGCG) is a pure green tea extract derived from the leaves of Camellia sinensis L. and is assayed to contain:
- At least 98% polyphenols (at least 80% of these polyphenols are catechins)
- At least 50% of catechins content is EGCG
- Only 2% or less of caffeine
PureBulk&#;s Green Tea Extract Powder contains no fillers, additives, or anti-caking agents.
Mixing and Solubility
Green tea extract 50% (EGCG) is a water-soluble product.
Volumetric Measurements
Note:
It is always recommended to verify these measurements with an accurate digital scale.Warning:
The amounts indicated in this table greatly exceed the recommended serving amount. Measuring Spoon Size CC Miligrams 1 Tablespoon 14.79cc mg 1/2 Tablespoon 7.39cc mg 1 Teaspoon 4.93cc mg 1/2 Teaspoon 2.46cc mg 1/4 Teaspoon 1.23cc 642mg 1/8 Teaspoon 0.62cc 321mg 1/16 Teaspoon 0.31cc 160mg 1/32 Teaspoon 0.15cc 80mgPOTENTIAL SIDE EFFECTS AND CAUTIONS:
Green tea is considered likely safe for most adults, according to the National Institute of Health. Alertness, over-stimulation, and insomnia are possible side effects of taking large amounts. A prolonged high intake of EGCG may cause liver or kidney damage.
EGCG may cause neural tube defects if taken during pregnancy. Individuals with serious medical conditions or pregnant or lactating women should not take this supplement. Consult your physician before use.
References & Research
Tested by Accredited 3rd Party Labs
PureBulk's supplements are tested by accredited third party labs in the USA to ensure their identity, purity and potency. To receive a copy of these test results or any other PureBulk supplement please fill out the COA request form found here.
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