02/19/2026
Impressive study shared here 😳
Green tea, primarily through its potent catechin Epigallocatechin-3-gallate (EGCG), works as a “multi-targeted” therapeutic agent by disrupting the biological pathways that drive pain and abnormal tissue growth.
To elaborate, green tea provides relief through mechanisms similar to over-the-counter painkillers:
▶️Prostaglandin Inhibition: Like NSAIDs (e.g. Ibuprofen), EGCG limits the biosynthesis of prostaglandins (specifically PGE2) by inhibiting enzymes in the COX pathway, such as mPGES-1. High prostaglandin levels cause the intense uterine contractions that lead to period pain.
▶️Antispasmodic Effects: It helps relax the smooth muscle tissue of the uterus, directly reducing the severity of contractions.
▶️Anti-Inflammatory Action: Its high antioxidant content reduces inflammation and oxidative stress, which are root causes of pelvic discomfort.
Also, in endometriosis, where tissue similar to the uterine lining grows elsewhere, green tea interrupts the “fuel” and “foundation” of these lesions:
▶️Anti-Angiogenesis: This is its most significant effect. EGCG suppresses VEGF (Vascular Endothelial Growth Factor), blocking the development of new blood vessels that lesions need to survive and grow.
▶️Inducing Apoptosis: It selectively triggers programmed cell death in endometriotic cells by activating the p53 pathway without affecting healthy ovarian or uterine tissue.
▶️Anti-Estrogenic: EGCG can competitively bind to estrogen receptors, blocking the hormone that typically stimulates lesion proliferation.
Green tea also targets the structural growth and signaling of fibroid tumors:
▶️COMT Inhibition: Fibroids often have high levels of the COMT enzyme, which creates an estrogen-rich environment. EGCG inhibits COMT, helping to reduce the hormonal stimulus for fibroid growth.
▶️Anti-Fibrotic Action: It reduces the production of the extracellular matrix (ECM) - the “tough” part of a fibroid - by lowering levels of proteins like Fibronectin, collagen and connective tissue growth factor.
▶️Growth Pathway Disruption: It disrupts major signaling pathways that tell fibroid cells to multiply and survive.
PMID: 36986169, https://doi.org/10.1038/s41598-023-35212-6