Multiple scientific reports suggest that Iscador augments the immune response. Iscador has been shown to increase natural-killer cell function helping the body’s own surveillance system in attacking unwanted cancer cells. It also stimulates antibodies to cancer cells which helps recognize the cancer cells as foreign in order to destroy these cells.
However, patients who use alternative treatments have a poorer survival time, even after controlling for type and stage of disease. In 2017, researchers at Yale School of Medicine published a paper which suggested that people who choose alternative medicine over conventional cancer treatments were more than twice as likely to die within five years of diagnosis. And specifically, in those with breast cancer, people choosing alternative medicine were 5.68 times more likely to die within five years.
Essiac Tea became popular in Canada and the United States when the herbal tea formula was used by a Canadian nurse to cure many forms of cancer. The formula was given to nurse Rene Caisse by a Native American medicine man. There are various formulas that are now on the market with various names. Most contain the original four ingredients, while others have made additions to the formula.