Anticancer minerals: Chemotherapy causes selenium deficiency

Anticancer minerals: Chemotherapy causes selenium deficiency

Selenium is an antioxidant and an essential ingredient for the immune system. At higher doses it helps suppress tumor formation and metastasis. Many kinds of chemotherapy result in selenium deficiency, requiring repletion of this nutrient. Selenium works best in conjunction with vitamin E. Since high doses of selenium may make some tumors more resistant to chemotherapy, I recommend 200 micrograms a day as the official safe upper limit. Higher amounts may be considered only with a full working knowledge of when this is safe and supported by data and experience.

Keith I. Block, MD

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