Green tea extract (EGCG)
The verdict
No fertility-specific evidence found for this item at all; separately, concentrated green tea extract is one of the best-documented, occasionally fatal causes of drug-induced liver injury among all dietary supplements — this is a distinct and serious safety concern independent of any fertility claim.
A concentrated antioxidant supplement (distinct from drinking brewed green tea), marketed broadly as a general-health/fertility antioxidant.
What the evidence shows
This research pass found no dedicated fertility evidence base for green tea extract at all — it's included here because it's a commonly stacked "antioxidant" in general fertility-supplement blends, not because of any specific fertility claim with evidence behind it.
Evidence tier
Documented harm⛔ Peer-reviewed evidence of serious adverse effects from the item's own chemistry/pharmacology or a well-characterized allergic mechanism. More serious than contamination; not resolved by buying a 'reputable brand'.
Sources
Take this further
Last reviewed .