White Tea Extract
The least processed form of Camellia sinensis, marketed as the most antioxidant-rich tea. Human data are scarce, and the one controlled trial that measured oxidative stress found no effect.
Where to buy
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What the science says
- Antioxidant status in people Limited evidence
A randomised crossover trial in healthy non-smokers found that a bolus of white or green tea raised plasma flavan-3-ol concentrations but did not change markers of oxidative stress. Absorbing polyphenols and improving redox status are not the same thing.
- Polyphenol content Limited evidence
Reviews of green and white teas as health-promoting foods describe high catechin content in white tea, sometimes exceeding green tea because of minimal processing, though values vary widely with leaf grade and brewing. Content comparisons are analytical, not clinical.
- Weight and cardiometabolic effects Limited evidence
A review focused on white and green tea's anti-obesity and cardiometabolic potential found that nearly all supporting trials used green tea or isolated EGCG. White tea specifically has not been tested for weight or metabolic outcomes in humans.
Dosage & safety
How to take it
Interactions
With medications
- nadolol and some other beta-blockers
Green tea catechins block the transporter these drugs use and can cut plasma levels dramatically. separate by several hours, or avoid the extract
- fluvoxamine and ciprofloxacin
They slow clearance of the caffeine the extract contains. reduce your total caffeine while on them
With other supplements
- iron supplements
Catechins bind non-heme iron and reduce how much you absorb. separate by at least 2 hours
Well-established interactions only — this is not a complete list. Always tell your doctor and pharmacist what you take.
Frequently asked questions
Is white tea extract a better antioxidant than green tea?
White tea can have high catechin content, but in a randomised crossover trial white or green tea raised plasma flavan-3-ols without changing markers of oxidative stress. The antioxidant evidence for white tea extract is limited.
Does white tea extract help with weight loss?
White tea extract has not been tested for weight or metabolic outcomes in humans; nearly all supporting trials used green tea or isolated EGCG. Its weight-loss evidence is limited.
Is white tea extract bad for your liver?
Concentrated tea catechin extracts, including white tea extract, have been linked to rare but serious liver injury, with EFSA flagging doses at or above 800 mg EGCG/day; fasted use carries the strongest association. Brewed tea does not carry the same signal, so take extracts with food.
Does white tea extract interact with medications?
White tea catechins can dramatically cut plasma levels of nadolol and some other beta-blockers, and its caffeine is cleared more slowly with fluvoxamine or ciprofloxacin. Separate white tea extract from iron supplements by at least 2 hours.
Scientific references
- Bolus ingestion of white and green tea increases the concentration of several flavan-3-ols in plasma, but does not affect markers of oxidative stress in healthy non-smokers
- Green and white teas as health-promoting foods
- Tea's anti-obesity properties, cardiometabolic health-promoting potentials, bioactive compounds, and adverse effects: A review focusing on white and green teas
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