Dr. Amar Rewari on Green Tea and Cancer Risk in EatingWell

Dr. Amar Rewari, chief of radiation oncology at Luminis Health, was featured as an expert source in an EatingWell article by Amy Brownstein, M.S., RDN, examining whether green tea can lower cancer risk.

The piece explores the plant compounds in tea — particularly catechins like EGCG — and the mechanisms researchers have studied in the lab: neutralizing free radicals that contribute to DNA damage over time, influencing inflammatory signaling pathways, and affecting how cells divide, including the body's process for clearing out damaged cells.

Throughout the article, Dr. Rewari offers measured context on what this evidence does and doesn't establish. While some studies have found associations between tea consumption and lower risk of certain cancers, he notes that human evidence remains inconsistent, and much of the promising research comes from animal studies or concentrated extracts rather than a brewed cup. His guidance: treat green tea as one healthy part of an overall dietary pattern, not as a cancer-prevention strategy in itself.

The article closes with broader prevention advice — regular physical activity, a diet built around whole grains, vegetables, fruit and legumes, limiting processed meats, and steering clear of supplements marketed for cancer prevention.