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    Green Tea Extract

    Morning

    Green tea extract is a concentrated source of polyphenols derived from the leaves of Camellia sinensis, with EGCG (epigallocatechin gallate) being its most pharmacologically active catechin. Used for centuries in East Asian medicine, it has become one of the most extensively researched plant-based supplements, valued for its broad effects on metabolism, cardiovascular function, and cognitive performance.

    Andrew Huberman
    Andrew HubermanTakes it
    Research Evidence
    May reduce risk of certain neurodegenerative conditions
    Limited
    Supports cognitive function and sustained attention
    Moderate
    Increases fat oxidation and energy expenditure
    Strong
    Mildly suppresses appetite and enhances satiety
    Moderate
    Reduces LDL cholesterol and improves lipid profiles
    Strong
    Provides systemic antioxidant protection
    Strong
    Source: Examine.com

    Expert Evidence

    12 references from 4 experts

    “I sometimes take some green tea extract.”

    Andrew Huberman - TRT, PEDs, Maxing Out Natural T, Supplements, Diet, Sleep & Hormones Deep Dive

    3:10:22
    Safety & Cautions

    Side Effects

    • Nausea on an empty stomach
    • Liver enzyme elevation at very high doses
    • Insomnia if taken late due to caffeine content
    • Mild digestive discomfort
    Green tea extract is generally well-tolerated at standard doses taken with food, but high-dose supplementation on an empty stomach has been linked to rare cases of hepatotoxicity. Individuals with liver conditions or those taking hepatotoxic medications should consult a physician before use.
    Pairs Well With
    CaffeineL-TheanineVitamin C
    Price Comparison
    From $0.10/ct
    N
    NatureWiseBest Value
    4.5
    •60 ct

    $0.10/ct

    $5.77 total

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