This site is inspired by the work of David Servan-Schreiber and scientific literature on nutrition and cancer prevention. It does not replace medical advice and does not constitute a treatment.

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Green Tea

Strong evidence

Active compounds

EGCG (épigallocatéchine-3-gallate)PolyphénolsCatéchines

Cancers studied in the literature

breastprostatelungcolon

Anti-cancer actions

  • ✦Blocks tissue invasion by cancer cells
  • ✦Inhibits angiogenesis (formation of new blood vessels feeding tumors)
  • ✦Sensitizes cancer cells to radiotherapy
  • ✦Combined action with soy against estrogen-positive breast cancer

How to prepare it

Prefer unfermented Japanese green tea (sencha, gyokuro, matcha). EGCG is destroyed during the fermentation of black tea.

Recommended dosage

3 to 5 cups per day. Steep for 8 to 10 minutes to release the catechins.

⚗️ Food synergies

These foods potentiate the effects of Green Tea

🫘Soy🟡Turmeric

🍳 Recipes with Green Tea

🥣Dr. Béliveau's Vegetable Cocktail🥤Morning anticancer smoothie🍵Green tea, ginger and organic lemon infusion🌅Complete anticancer breakfast🍫Dark chocolate and berry dessert

Scientific sources

  • —Harvard study on soy + green tea and estrogen-positive breast cancer
  • —Japanese studies on green tea drinkers and breast cancer survival

🔬 Studies from Dr. Béliveau's laboratory

All publications →
2026Redox Biology  90:104047Strong evidence

CRISPR-based chemogenomic profiling reveals redox vulnerabilities to epigallocatechin-3-gallate and green tea polyphenol extract

Akla N, Boudah A, Bertomeu T, Chatr-aryamontri A, Desjarlais M, ANNABI B.

A CRISPR study revealing the exact cellular targets of EGCG: green tea exploits redox imbalances specific to cancer cells, while sparing healthy cells.

Exploiting redox vulnerabilities of cancer cells via EGCG

Source: richardbeliveau.orgRead article
2025Journal of Cancer 16(15):4302-4315Strong evidence

Chemopreventive targeting of oncogenic stemness: EGCG-mediated suppression of the HIF-1α-PPARg-cancer stem cells transcriptional signature in 3D glioblastoma spheroids

Fallah A, Payet-Desruisseaux M, Zgheib A, Danalache BA, Eliopoulos N, ANNABI B.

EGCG specifically targets glioblastoma stem cells — the most treatment-resistant — by blocking their oncogenic survival pathways.

Targeting oncogenic pluripotency in glioblastoma

Source: richardbeliveau.orgRead article
2024Nutrition and Cancer 77(1):9-25Strong evidence

The chemopreventive impact of diet-derived phytochemicals on the adipose tissue and breast tumor microenvironment secretome

Akla N, Veilleux C, ANNABI B.

A review of the chemopreventive impact of phytochemicals: EGCG and other dietary compounds inhibit G6PT, a key metabolic target in cancer cells.

Chemopreventive impact of dietary phytochemicals on G6PT

Source: richardbeliveau.orgRead article
2023Biomedicines 11(4):1000Strong evidence

Epigallocatechin-3-Gallate Prevents the Acquisition of a Cancer Stem Cell Phenotype in Ovarian Cancer Tumorspheres through the Inhibition of Src/JAK/STAT3 Signaling

Rodriguez Torres S, Gresseau L, Benhamida M, Fernandez-Marrero Y, ANNABI B.

Green tea EGCG prevents ovarian cancer cells from acquiring resistance to carboplatin (the standard chemotherapy), suggesting a therapeutic synergy.

Preventing drug resistance in ovarian cancer

Source: richardbeliveau.orgRead article