Decaffeinated Green Tea
Decaffeinated green tea retains most polyphenolic content (catechins, EGCG) with substantially reduced caffeine. EFSA has identified concerns about high-dose green tea catechin supplements (>800 mg EGCG/day) and hepatic effects, but typical brewed tea consumption is considered safe.
What it is
Green tea (Camellia sinensis) from which most caffeine has been removed via solvent (CO2, ethyl acetate) or water decaffeination.
Beverage and ingredient providing tea polyphenols (catechins) with minimal caffeine.
Why it's flagged
- High-dose EGCG supplements may cause liver effects
- Trace caffeine remains
What regulators actually say
"EFSA concluded that intake of EGCG from supplements at doses equal or above 800 mg/day may induce hepatic injury"
"EU regulation imposes restrictions on the addition of green tea catechins to foods"
Regulatory status
United States — FDA
Whole food / GRAS beverage
European Union — EFSA
Tea is permitted; EFSA cautions on high-dose green tea catechin supplements (Reg 2022/2340)
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