Quercetin is an antioxidant substance that is found in many vegetables and fruits.

Quercetin inhibits cancer growth by forcing cancer cells to commit suicide. Each cell has a suicide program, which is activated whenever it becomes too old or too sick. Cancer cells deactivate this program and can, therefore, live longer. Quercetin can reactivate the suicide program in cancer cells and thereby trigger cell death.

Quercetin can also block cell development in cancer cells. Each cancer cell goes through certain stages during cell division. Quercetin stops the development of the cell shortly before cell division.

Quercetin is also able to inhibit tumor vessels and thereby block the spread of cancer cells.

In addition to its harmful effects on cancer cells, quercetin can protect healthy cells from side-effects of chemotherapy and radiation therapy.

Studies prove the effects of quercetin and others on these cancers: Breast cancer, colon cancer, lung cancer, and prostate cancer.

Quercetin can be used excellently in cancer therapy. It has few side-effects and is well-tolerated. To achieve a high concentration on the tumor, I use it only intravenously.