Green Tea Leaves & Extract – Antioxidant, Metabolism & Energy Support

Support antioxidant defence, healthy metabolism, cardiovascular wellness, and everyday energy with green tea leaves and concentrated green tea extracts rich in naturally occurring catechins, including EGCG.

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ABOUT THIS COLLECTION

Harness the nutritional benefits of Green Tea Leaves & Extract with our pharmacist-curated collection at Coal Harbour Pharmacy. Derived from the leaves of Camellia sinensis, green tea naturally contains polyphenols called catechins, including epigallocatechin gallate (EGCG), one of green tea’s most extensively studied compounds.

Green tea is valued primarily for its antioxidant activity and has also been studied for its potential role in metabolic health, cardiovascular wellness, cognitive function, and healthy energy metabolism. Concentrated extracts provide standardized amounts of catechins in convenient supplement formats, while traditional green tea leaves offer a gentler way to incorporate these compounds into an everyday wellness routine.

Our collection includes traditional green tea, standardized extracts, EGCG supplements, powders, capsules, and combination formulas from trusted professional and natural health brands.

Shop online with fast Canadian shipping or visit our Vancouver pharmacy for personalized guidance.

KEY BENEFITS

• Provides antioxidant protection against oxidative stress

• Supplies naturally occurring catechins and polyphenols

• Supports healthy metabolism

• May complement weight-management efforts alongside diet and exercise

• Supports cardiovascular health

• Provides natural caffeine in caffeinated varieties

• Supports mental alertness and everyday energy

• Offers traditional tea and concentrated supplement options

WHO IT’S IDEAL FOR

• Adults seeking daily antioxidant support

• Individuals focused on metabolic wellness

• People following a healthy weight-management program

• Those seeking cardiovascular nutritional support

• Adults looking for gentle, naturally sourced energy

• Individuals interested in concentrated EGCG supplementation

• Tea drinkers looking to incorporate green tea into a healthy lifestyle

• People seeking plant-based polyphenol support

WHAT IS GREEN TEA?

Green tea is produced from the leaves of the Camellia sinensis plant—the same species used to produce black, white, and oolong teas.

What distinguishes green tea is primarily how the leaves are processed after harvesting. Minimal oxidation helps preserve many of its naturally occurring polyphenols.

Important constituents include:

• Catechins

• EGCG

• Epicatechin (EC)

• Epicatechin gallate (ECG)

• Epigallocatechin (EGC)

• Caffeine

• L-theanine

These compounds contribute to green tea’s characteristic antioxidant and physiological properties.

WHAT IS GREEN TEA EXTRACT?

Green tea extract is a concentrated preparation derived from green tea leaves.

Rather than drinking multiple cups of tea, standardized supplements can provide specified quantities of green tea catechins or EGCG in a capsule, tablet, softgel, or powder.

Products can differ considerably in:

• Total green tea extract

• Polyphenol concentration

• Catechin concentration

• EGCG content

• Caffeine content

• Serving size

For this reason, compare products based on their standardized active compounds, not simply the total milligrams of green tea extract.

GREEN TEA & ANTIOXIDANT SUPPORT

Green tea’s catechins function as antioxidants and help protect cells against oxidative stress caused by free radicals.

EGCG is particularly well known for its antioxidant properties and is one of the primary reasons concentrated green tea extracts are used in nutritional supplements.

Antioxidant support contributes to overall cellular health and can complement a balanced diet rich in fruits, vegetables, and other polyphenol-containing foods.

GREEN TEA & METABOLISM

Green tea and its combination of catechins and caffeine have been investigated for their effects on energy expenditure and fat oxidation.

Green tea supplements are therefore frequently included in products designed to complement:

• Healthy metabolism

• Exercise programs

• Active lifestyles

• Weight-management strategies

Green tea extract should not be considered a standalone weight-loss treatment. Any metabolic effects are generally modest and work best alongside appropriate nutrition, physical activity, sleep, and other healthy lifestyle habits.

GREEN TEA & ENERGY

Traditional green tea naturally contains caffeine, although generally less than coffee.

Green tea also contains L-theanine, an amino acid naturally present in tea leaves.

Depending on the product, green tea may provide a useful option for individuals seeking moderate natural caffeine and mental alertness.

For those who are caffeine-sensitive, decaffeinated or low-caffeine green tea extracts may be preferable.

GREEN TEA & CARDIOVASCULAR HEALTH

Green tea consumption has been extensively studied in relation to cardiovascular health.

Its polyphenols may complement a heart-healthy lifestyle by supporting:

• Antioxidant defence

• Healthy vascular function

• Normal lipid metabolism

• Overall cardiovascular wellness

Green tea supplements should complement—not replace—appropriate medical management of cholesterol, blood pressure, or cardiovascular disease.

TYPES AVAILABLE

Traditional Green Tea Leaves

Loose-leaf or tea-bag formats provide green tea polyphenols together with the experience of a traditional brewed beverage.

Ideal for:

• Everyday wellness

• Moderate natural caffeine

• Daily antioxidant intake

• Individuals who prefer beverages over supplements

Green Tea Extract Capsules & Tablets

Concentrated extracts provide a convenient way to obtain standardized green tea compounds without preparing multiple servings of tea.

Look for products that clearly state their:

• Polyphenol content

• Catechin content

• EGCG concentration

• Caffeine content

Standardized EGCG Formulas

These products are specifically standardized to provide a defined amount of EGCG.

They are commonly selected when more precise catechin intake is desired.

Green Tea Powders

Powdered green tea products can be incorporated into beverages and smoothies.

Some products contain powdered whole tea leaves, while others contain concentrated extracts, so check the ingredient panel carefully.

Combination Formulas

Green tea extract may be combined with complementary ingredients such as:

• L-theanine

• CoQ10

• Other antioxidants

• Metabolic-support nutrients

• Botanical extracts

Choose combination formulas based on your specific wellness goals and the complete ingredient profile.

GREEN TEA VS. GREEN TEA EXTRACT

Green tea leaves provide catechins, caffeine, L-theanine, and other naturally occurring compounds in a traditional beverage.

Green tea extract concentrates selected compounds into a smaller serving and may provide substantially more EGCG than a typical cup of tea.

Neither option is automatically better. The appropriate choice depends on desired potency, caffeine tolerance, convenience, and intended use.

CAFFEINATED VS. DECAFFEINATED GREEN TEA EXTRACT

Green tea extracts can contain varying amounts of caffeine.

Caffeinated formulas may be preferred for:

• Daytime energy

• Alertness

• Active lifestyles

• Metabolic-support routines

Decaffeinated formulas may be preferable for:

• Caffeine-sensitive individuals

• Evening supplementation

• People limiting stimulant intake

• Individuals primarily interested in catechin and EGCG content

Always check the product label rather than assuming a green tea extract is caffeine-free.

HOW TO CHOOSE THE RIGHT OPTION

• For everyday antioxidant support: Choose traditional green tea or a moderate-strength extract

• For concentrated EGCG: Select a standardized EGCG formula

• For metabolic support: Consider a standardized green tea extract as part of a comprehensive lifestyle program

• For natural daytime energy: Consider a caffeinated green tea product

• For caffeine sensitivity: Choose a clearly labelled decaffeinated or low-caffeine formula

• For convenient supplementation: Choose capsules or tablets

• For beverages and smoothies: Explore appropriate powders

• For personalized recommendations: Consult our pharmacy team

CAUTIONS & WARNINGS

Green tea beverages consumed in normal dietary amounts are generally well tolerated, but concentrated green tea extracts require greater care.

Green tea extract supplements, particularly products providing concentrated EGCG, have been associated in rare cases with liver injury.

To support safer use:

• Follow the individual product directions

• Do not exceed the recommended serving

• Avoid combining multiple high-dose green tea or EGCG supplements

• Follow label directions regarding whether the product should be taken with food

• Consider total caffeine intake from coffee, tea, energy drinks, and other supplements

Consult a healthcare professional before use if you:

• Have liver disease

• Take prescription medications

• Are pregnant or breastfeeding

• Are sensitive to caffeine

• Have an iron deficiency

• Have a cardiovascular condition requiring treatment

Green tea can also affect the absorption or activity of certain medications and nutrients. Ask a pharmacist about potential interactions if you regularly take prescription medicines.

Discontinue use and seek medical attention if symptoms suggestive of liver problems develop, such as yellowing of the skin or eyes, dark urine, unusual fatigue, or persistent abdominal discomfort.

FAQ

What is EGCG?
EGCG (epigallocatechin gallate) is a catechin naturally present in green tea. It is one of green tea’s most extensively studied polyphenols and is valued primarily for its antioxidant activity.

Is green tea extract the same as drinking green tea?
No. Green tea extract is concentrated and can provide substantially higher amounts of catechins such as EGCG per serving than traditionally brewed tea.

Does green tea extract support weight loss?
Green tea catechins and caffeine have been studied for their effects on energy expenditure and fat oxidation, but any effect on body weight is generally modest. Green tea extract is best considered complementary to nutrition, physical activity, and other healthy lifestyle habits.

Does green tea extract contain caffeine?
Some products do and others are decaffeinated or formulated with very little caffeine. Always check the individual product label.

Can I take green tea extract every day?
Many products are intended for regular use, but concentrated extracts should be taken according to their specific directions. Higher-dose EGCG products are not appropriate for everyone.

Can green tea affect iron absorption?
Tea polyphenols can reduce the absorption of non-heme iron. Individuals with low iron levels or those taking iron supplements may benefit from separating green tea intake from iron-rich meals or supplements.

Can green tea extract interact with medications?
Yes. Green tea and concentrated extracts can interact with certain medications. Consult a pharmacist or healthcare professional if you regularly take prescription medicines.

Is green tea extract safe for the liver?
Traditional green tea beverages have a different safety profile from concentrated extracts. Rare cases of liver injury have been associated with concentrated green tea extract supplements, particularly higher-dose products, so product directions and precautions should be followed carefully.

WHY SHOP AT COAL HARBOUR PHARMACY

• Pharmacist-curated green tea supplements

• Standardized green tea and EGCG extracts available

• Caffeinated and caffeine-conscious options

• Trusted professional and natural health brands

• Clean, quality-focused formulations

• Fast, secure Canada-wide shipping

• Vancouver-based pharmacy with personalized guidance