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Green Tea

notesDescription

Green tea originates from the leaves of the Camellia sinensis plant that have undergone minimal oxidation during processing. Unlike black tea, green tea leaves are typically steamed or pan-fired shortly after harvesting to prevent oxidation, which helps retain their vibrant color and a higher concentration of beneficial polyphenols, particularly catechins. These catechins, especially epigallocatechin gallate (EGCG), are powerful antioxidants believed to be responsible for many of green tea's health-promoting properties. Historically, green tea has been consumed for thousands of years, with its origins in China before spreading across Asia. It is valued not only for its distinct flavor but also for its traditional medicinal uses. Modern scientific research has extensively explored its potential benefits, leading to its widespread use as a beverage, in dietary supplements, and as an ingredient in functional foods. Its rich composition also includes vitamins, minerals, and amino acids. The bioactive compounds in green tea are thought to contribute to various physiological effects. These include modulating metabolic pathways, supporting brain health by enhancing alertness and focus, and promoting cardiovascular well-being. Its mild stimulant properties, primarily from caffeine, combined with the calming effects of L-theanine, often result in a unique state of relaxed alertness, making it a favored beverage worldwide.

ecoSources
Camellia sinensis plant (leaves)
Cheapest Green Tea supplements
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best Green Tea supplements
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Discover and compare top value Green Tea supplements chosen for their effectiveness in supporting detoxification, heart health, metabolism, weight loss, immunity, anti-aging, and cognitive function.
scheduleTiming & Intake
scheduleAnytimerestaurantWith foodbedtimeAvoid before bedlocal_drinkTake with Meals, especially with green tea extracts, to enhance absorption and reduce stomach upset.
infoWhile generally consumed throughout the day, individuals sensitive to caffeine should avoid consumption close to bedtime to prevent sleep disturbances. Taking green tea, particularly concentrated extracts, with food can help mitigate potential gastrointestinal discomfort.
check_circleOptimal Dosage
Minimum500 mg
Maximum1000 mg
report_problemSafety & Toxicity
track_changesGoals
Anti-Aging
hourglass_bottomAnti-Aging
Impact
High effect
The catechins in green tea, particularly EGCG, activate pathways like AMPK that are associated with longevity and improved metabolic health. They help protect cells from oxidative damage, support cardiovascular function, and may enhance autophagy, the body's cellular cleanup process that removes damaged components.
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Anti-Inflammatory Support
local_hospitalAnti-Inflammatory Support
Impact
High effect
Typical dose:250–750 mg
Epigallocatechin gallate (EGCG) is the primary active compound in green tea. It helps downregulate the production of pro-inflammatory cytokines like TNF-alpha and IL-6. This provides broad-spectrum support against systemic inflammation driven by metabolic and environmental stressors.
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Cognitive Support
psychology_altCognitive Support
Impact
High effect
Green tea naturally contains L-Theanine and caffeine, a well-studied combination that enhances alertness and focus while minimizing jitteriness. Furthermore, its potent antioxidant compounds, like EGCG, help protect brain cells from oxidative stress, supporting long-term cognitive health.
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Heart Health
favoriteHeart Health
Impact
High effect
The catechins in green tea, particularly EGCG, enhance nitric oxide production, which improves vasodilation and blood flow. They also inhibit LDL oxidation and have mild anti-inflammatory effects, contributing to a comprehensive reduction in atherosclerotic risk factors.
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Metabolism Boost
local_fire_departmentMetabolism Boost
Impact
High effect
Typical dose:400–800 mg
The primary catechin in green tea, epigallocatechin gallate (EGCG), works with caffeine to inhibit an enzyme that breaks down norepinephrine. This results in prolonged stimulation of the nervous system, leading to a sustained increase in calorie burning and fat utilization.
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sync_altInteractions

add_circle_outlinePositive Interactions

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Theanine
Green tea naturally contains Theanine, which works synergistically with its caffeine to promote a state of relaxed alertness and improved focus, reducing potential jitters.
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Vitamin C
Vitamin C can enhance the absorption and bioavailability of catechins (antioxidants) found in green tea, increasing its efficacy.
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Turmeric
Both green tea's EGCG and the compounds in Turmeric (like Curcumin) are powerful antioxidants and anti-inflammatory agents, potentially offering amplified benefits when combined for cellular health.
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Curcumin
Similar to Turmeric, Curcumin, its active compound, synergizes with green tea's catechins to provide enhanced antioxidant and anti-inflammatory support, beneficial for overall health.
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Rutin
Rutin, a flavonoid, may help stabilize and enhance the bioavailability of catechins found in green tea, potentially increasing its antioxidant effects.
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Resveratrol
Both Resveratrol and green tea catechins are potent antioxidants; their combined intake may offer enhanced cellular protection and anti-aging benefits.
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Coenzyme Q-10
CoQ10 and green tea catechins both support mitochondrial function and provide antioxidant protection, making them synergistic for cellular energy and cardiovascular health.

remove_circle_outlineNegative Interactions

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Iron
Green tea catechins can bind to non-heme iron, potentially reducing its absorption. It is advisable to consume green tea separately from iron supplements or iron-rich meals.
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Caffeine
Green tea contains caffeine. Combining it with additional Caffeine from other sources could lead to excessive caffeine intake, increasing the risk of side effects like jitters, insomnia, and increased heart rate.
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St. John's Wort
There is theoretical concern that green tea could interfere with the metabolism of St. John's Wort, though less evidence than with medications.
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Valerian
The stimulating effects of green tea (due to caffeine) could potentially counteract the sedative or calming effects of Valerian.
inventory_2Recommended products
82 Value Green Tea Extract 400 mg

Green Tea Extract 400 mg

NOW
4.7
★★★★★
(9849 ratings)
Green Tea: 400 mg
This NOW green tea extract provides 400mg of catechins and a significant 400mg of caffeine, plus Vitamin C, making it a stimulating and economical option for general wellness.
Buy for $7.49(from Vitacost)
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90 Best Superfood Matcha

Superfood Matcha

Further Food
4.2
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(803 ratings)
Green Tea: 1630 mg
This powdered blend offers 1630mg of matcha green tea combined with an 870mg Superfood & Adaptogen Blend, providing comprehensive wellness support for energy, focus, and overall vitality.
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68 Value Green Tea

Green Tea

Paradise
4.6
★★★★★
(222 ratings)
Green Tea: 250 mg
This Paradise green tea supplement provides 250mg of green tea leaf extract per serving, offering foundational wellness support in an economical and simple capsule form.
Buy for $12.74(from iHerb)
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92 Value Green Tea

Green Tea

Jarrow Formulas
4.5
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(4112 ratings)
Green Tea: 500 mg
This Jarrow Formulas green tea extract provides a potent 500mg each of EGCG, catechins, and polyphenols, offering comprehensive and highly economical support for diverse wellness goals.
Buy for $8.88(from Daily Vita)
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70 Budget Green Tea Alcohol-Free

Green Tea Alcohol-Free

Nature's Answer
4.6
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(399 ratings)
Green Tea: 665 mg
This alcohol-free liquid green tea extract offers a broad spectrum of green tea compounds, ideal for those preferring a non-capsule form for general wellness support.
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79 Value Green Tea Extract 500 mg

Green Tea Extract 500 mg

Source Naturals
4.6
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(1606 ratings)
Green Tea: 500 mg
This Source Naturals supplement delivers 500mg of green tea leaf extract with a small amount of calcium, offering economical and consistent support for general wellness in tablet form.
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72 Budget Chinese Green Tea 400 mg

Chinese Green Tea 400 mg

Natures Plus Herbal Actives
4.5
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Green Tea: 400 mg
Natures Plus Herbal Actives Chinese Green Tea delivers 400mg of standardized polyphenols, making it a focused choice for antioxidant support and general green tea benefits.
Buy for $11.45(from iHerb)
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68 Best Extra Strength Thermo Green Tea

Extra Strength Thermo Green Tea

NOW
4.5
★★★★★
(1902 ratings)
Green Tea: 700 mg
NOW Extra Strength Thermo Green Tea offers a high 700mg dose of green tea extract, suitable for general green tea benefits, though without specific standardization for active compounds.
Buy for $12.8(from Daily Vita)
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89 Best Decaffeinated Mega Green Tea Extract

Decaffeinated Mega Green Tea Extract

Life Extension
4.6
★★★★★
(5184 ratings)
Green Tea: 725 mg
Life Extension Decaffeinated Mega Green Tea Extract delivers a high 725mg EGCG and polyphenols in a caffeine-free form, ideal for maximum antioxidant and metabolic support without stimulants.
Buy for $11.25(from Amazon)
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75 Best Green Tea Alcohol-Free

Green Tea Alcohol-Free

Herb Pharm
4.8
★★★★★
(28 ratings)
Green Tea: 824 mg
This alcohol-free liquid green tea extract delivers a substantial 824mg of leaf extract per serving, suitable for those seeking broad green tea benefits in a convenient form.
Buy for $14.38(from iHerb)
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68 Budget Green Tea Fat Burner

Green Tea Fat Burner

Applied Nutrition
4.1
★★★★★
(6961 ratings)
Green Tea: 400 mg
This product delivers a focused blend of EGCG from green tea and caffeine, aiming to support metabolism and energy, though it uses proprietary blends for other ingredients.
Buy for $9.99(from iHerb)
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Epi Cat

Blackstone Labs
5.0
★★★★★
(3 ratings)
Green Tea: 700 mg
Blackstone Labs Epi Cat combines a high 700mg green tea extract with 300mg of epicatechins, making it a targeted supplement for active individuals interested in muscle and performance support.
Buy for $34.99(from Nutrition Faktory)
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70 Best Matcha

Matcha

Green Foods
4.6
★★★★★
(1936 ratings)
Green Tea: 1000 mg
Green Foods Matcha is an organic liquid matcha product with L-Theanine, moderate caffeine, and catechins, offering a natural, holistic green tea experience for calm energy and focus.
Buy for $23.19(from Vitacost)
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58 Best Green Tea Pure Green Decaf

Green Tea Pure Green Decaf

Yogi
4.6
★★★★★
(4481 ratings)
Green Tea: 1937 mg
Yogi Green Tea Pure Green Decaf is an organic, decaffeinated green tea in a tea bag format, offering a mild, calming beverage for general wellness, rather than concentrated extract benefits.
Buy for $3.81(from iHerb)
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No image

Day Starter

Source Naturals
4.9
★★★★★
(7 ratings)
Green Tea: 200 mg
This product combines caffeine from green tea with L-Theanine to offer a noticeable energy lift and improved focus, aiming for smooth alertness without excessive nervousness.
Buy for $8.7(from iHerb)
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80 Value EGCg Green Tea Extract 400 mg

EGCg Green Tea Extract 400 mg

NOW
4.7
★★★★★
(26425 ratings)
Green Tea: 400 mg
NOW EGCg Green Tea Extract 400 mg is a decaffeinated, standardized green tea supplement, providing 400mg EGCg and total catechins for targeted antioxidant and metabolic support without caffeine.
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81 Value EGCg Green Tea Extract 400 mg

EGCg Green Tea Extract 400 mg

NOW
4.7
★★★★★
(26829 ratings)
Green Tea: 400 mg
This larger size of NOW EGCg Green Tea Extract 400 mg provides standardized, decaffeinated EGCg and total catechins, offering excellent value for continuous antioxidant and metabolic support.
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87 Best Mega Green Tea Extract

Mega Green Tea Extract

Life Extension
4.7
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Green Tea: 725 mg
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65 Value Green Tea 500 mg

Green Tea 500 mg

Swanson
4.6
★★★★★
(3420 ratings)
Green Tea: 500 mg
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88 Best Matcha Power

Matcha Power

Pure Synergy
4.6
★★★★★
(453 ratings)
Green Tea: 1500 mg
This product offers 1500mg of organic Japanese ceremonial-grade matcha green tea in capsules, providing the full spectrum of matcha benefits including natural caffeine for energy and focus.
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89 Best Matcha Power

Matcha Power

Pure Synergy
4.5
★★★★★
(176 ratings)
Green Tea: 1500 mg
This liquid supplement offers 1500mg of organic Japanese ceremonial-grade matcha, providing a full spectrum of matcha's natural benefits, including energy and focus, in a convenient liquid format.
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75 Value L-Theanine 100 mg

L-Theanine 100 mg

NOW
4.7
★★★★★
(16429 ratings)
Green Tea: 250 mg
NOW L-Theanine 100 mg combines L-Theanine with decaffeinated green tea for calm focus and cognitive support, suitable for those avoiding caffeine.
Buy for $12.39(from Vitacost)
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83 Value Green Tea Extract 400 mg

Green Tea Extract 400 mg

NOW
4.7
★★★★★
(10214 ratings)
Green Tea: 400 mg
Offering 400mg of catechins, 400mg of caffeine, and Vitamin C, this large-count NOW green tea extract provides a highly economical and stimulating option for consistent wellness support.
Buy for $15.89(from Vitacost)
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analyticsProduct stats
sellPrice per product
Average$36.27
Median$27.13
restaurantPrice per serving
Average$0.87
Median$0.80
sciencePrice per 100 mg
Average$0.31
Median$0.24
bar_chartPrice distribution
bar_chartPrice per serving distribution
bar_chartPrice per 100 mg
Reference amount: 100 mg
categoryForms
bar_chartPaired ingredients
water_dropIngredient forms
category EGCg (31) 92
EGCG is a powerful antioxidant and anti-inflammatory compound responsible for a significant portion of green tea's health benefits. Research suggests it plays a key role in supporting cardiovascular health, metabolism, weight management, and neuroprotection. Its mechanisms include inhibiting certain enzymes, modulating signaling pathways, and scavenging free radicals.
thumb_upPros
  • Highly researched and well-understood
  • Potent antioxidant and anti-inflammatory agent
  • Significant impact on metabolism and cardiovascular health
thumb_downCons
  • Bioavailability can be low in its isolated form without specialized delivery systems
  • Potential for liver issues at very high doses in some susceptible individuals
sellPer product
Avg$37.85
Med$25.99
restaurantPer serving
Avg$0.88
Med$0.79
science Per 100 mg
Avg$0.20
Med$0.18
Price distribution
category EGCG (31) 92
EGCG is a powerful antioxidant and anti-inflammatory compound responsible for a significant portion of green tea's health benefits. Research suggests it plays a key role in supporting cardiovascular health, metabolism, weight management, and neuroprotection. Its mechanisms include inhibiting certain enzymes, modulating signaling pathways, and scavenging free radicals.
thumb_upPros
  • Highly researched and well-understood
  • Potent antioxidant and anti-inflammatory agent
  • Significant impact on metabolism and cardiovascular health
thumb_downCons
  • Bioavailability can be low in its isolated form without specialized delivery systems
  • Potential for liver issues at very high doses in some susceptible individuals
sellPer product
Avg$37.85
Med$25.99
restaurantPer serving
Avg$0.88
Med$0.79
science Per 100 mg
Avg$0.20
Med$0.18
Price distribution
category Polyphenols (20) 85
Green tea polyphenols, primarily catechins, are potent antioxidants that help protect cells from oxidative stress and free radical damage. They contribute significantly to many of green tea's observed health benefits, including cardiovascular, metabolic, and anti-inflammatory support.
thumb_upPros
  • Strong antioxidant properties
  • Contributes to a broad range of health benefits
  • Naturally occurring
thumb_downCons
  • Less specific than individual catechins like EGCG
  • Bioavailability can vary depending on the specific polyphenol
sellPer product
Avg$46.67
Med$33.75
restaurantPer serving
Avg$1.06
Med$0.92
science Per 1000 mg
Avg$1.87
Med$1.78
Price distribution
category Catechins (16) 88
Catechins are a class of flavonoids found in green tea, with Epigallocatechin Gallate (EGCG) being the most prominent. Other catechins include epicatechin, epigallocatechin, and epicatechin gallate. These compounds are powerful antioxidants, contributing to green tea's anti-inflammatory, cardiovascular, and metabolic health benefits by neutralizing free radicals and modulating cellular pathways.
thumb_upPros
  • Potent antioxidant activity
  • Supports diverse health benefits
  • Naturally occurring in green tea
thumb_downCons
  • Less concentrated than isolated EGCG
  • Bioavailability can vary among different catechins
sellPer product
Avg$35.71
Med$23.04
restaurantPer serving
Avg$0.78
Med$0.53
science Per 1000 mg
Avg$0.62
Med$0.30
Price distribution
category Epigallocatechin Gallate (14) 92
Epigallocatechin Gallate (EGCG) is the primary catechin responsible for green tea's widely recognized health benefits. It exhibits strong antioxidant, anti-inflammatory, and thermogenic properties, contributing to cardiovascular health, metabolic regulation, and cellular protection against oxidative stress.
thumb_upPros
  • Extensive research backing its efficacy
  • Potent antioxidant and anti-inflammatory properties
  • Supports numerous body systems
thumb_downCons
  • Can have low bioavailability; potential for side effects at very high concentrations, especially if liver sensitive.
  • Similar to EGCG, potential for liver issues at very high doses in some individuals.
sellPer product
Avg$49.57
Med$54.72
restaurantPer serving
Avg$1.32
Med$1.62
science Per 100 mg
Avg$0.43
Med$0.57
Price distribution
category Caffeine (8) 75
Caffeine is a central nervous system stimulant that enhances alertness, reduces fatigue, and can improve cognitive performance. In green tea, it works synergistically with catechins to support metabolism and fat oxidation. While beneficial for energy and focus, intake levels should be monitored to avoid adverse effects.
thumb_upPros
  • Increases energy and alertness
  • Enhances focus and cognitive performance
  • Contributes to metabolism boost and fat burning
thumb_downCons
  • Can cause jitters, anxiety, and sleep disturbance
  • Potential for dependence and tolerance buildup
  • May cause gastrointestinal upset in sensitive individuals
sellPer product
Avg$18.98
Med$14.25
restaurantPer serving
Avg$1.00
Med$0.73
science Per 100 mg
Avg$0.17
Med$0.14
Price distribution
category Total Polyphenols (4) 85
Green tea polyphenols, primarily catechins, are potent antioxidants that help protect cells from oxidative stress and free radical damage. They contribute significantly to many of green tea's observed health benefits, including cardiovascular, metabolic, and anti-inflammatory support.
thumb_upPros
  • Strong antioxidant properties
  • Contributes to a broad range of health benefits
  • Naturally occurring
thumb_downCons
  • Less specific than individual catechins like EGCG
  • Bioavailability can vary depending on the specific polyphenol
sellPer product
Avg$25.09
Med$26.00
restaurantPer serving
Avg$0.22
Med$0.22
science Per 100 mg
Avg$0.02
Med$0.02
Price distribution
category Camellia sinensis Leaf Extract, Decaffeinated (3) 87
This extract comes directly from the leaves of the Camellia sinensis plant, the source of green tea. It is processed to concentrate the beneficial compounds, primarily polyphenols and catechins like EGCG, which are responsible for its antioxidant, anti-inflammatory, and metabolic-supporting properties. The efficacy depends on the specific standardization of the extract (e.g., percentage of catechins or EGCG).
thumb_upPros
  • Concentrated source of green tea's beneficial compounds
  • Convenient for supplementation
  • Rich in natural antioxidants
thumb_downCons
  • Potency varies greatly unless standardized
  • May contain caffeine depending on processing
  • Potential for gastrointestinal upset at high doses
sellPer product
Avg$60.28
Med$59.95
restaurantPer serving
Avg$1.24
Med$1.29
science Per 100 mg
Avg$0.60
Med$0.66
Price distribution
category Camellia sinensis extract (2) 87
Camellia sinensis extract is a broad term for a concentrated form of green tea's beneficial components. Its potency and specific effects depend on its standardization, often for total polyphenols or EGCG content. It provides a more concentrated source of green tea's antioxidants and other beneficial compounds than brewed tea, supporting a range of health goals from cardiovascular to metabolic health.
thumb_upPros
  • Concentrated source of beneficial compounds
  • Convenient form for supplementation
  • Potentially higher potency than brewed tea
thumb_downCons
  • Quality and potency can vary significantly between products unless properly standardized
  • May contain caffeine if not specified as decaffeinated
sellPer product
Avg$49.98
Med$49.98
restaurantPer serving
Avg$2.64
Med$2.64
science Per 100 mg
Avg$0.65
Med$0.65
Price distribution
category Phospholipid complex (2) 90
A phospholipid complex, such as those made with sunflower or soy lecithin, helps encapsulate poorly absorbed compounds like green tea catechins. This liposomal or phytosomal delivery system allows the catechins to pass through the digestive tract more efficiently and be better utilized by the body, leading to improved efficacy at lower doses.
thumb_upPros
  • Dramatically increases bioavailability of green tea catechins
  • Potentially leads to greater efficacy at lower doses
  • May reduce the risk of gastrointestinal upset associated with high doses of unformulated extracts
thumb_downCons
  • Often more expensive than standard extracts
  • Formulation might contain soy, which is an allergen for some individuals
sellPer product
Avg$49.98
Med$49.98
restaurantPer serving
Avg$2.64
Med$2.64
science Per 100 mg
Avg$0.65
Med$0.65
Price distribution

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