The Cancer Advisor

Is vitamin D the most powerful anti cancer supplement?  Thousands of studies have been done on the health effects of vitamin D, and research shows it is involved in the biology of all the cells and tissues in your body, including your immune cells. Your cells actually need the active form of vitamin D to gain access to the genetic blueprints stored inside. This is one of the reasons why vitamin D has the ability to impact such a wide variety of health problems — from fetal development to cancer. Note: There are more than 12,000 search results on  vitamin D and cancer on PubMed .  2025 Study: Vitamin D Helps Lower Your Risk of Colorectal Cancer A comprehensive analysis published in the journal  Nutrients in April 2025  has discovered a fascinating but substantial link between vitamin D and colorectal cancer (CRC). The researchers reviewed and analyzed data from 50 separate studies involv...

Pancreatic cancer, which affects about 60,000 Americans every year, is one of the deadliest forms of cancer. After diagnosis, fewer than 10 percent of patients survive for five years. While some chemotherapies are initially effective, pancreatic tumors often become resistant to them. The disease has also proven difficult to treat with newer approaches such as immunotherapy. Dr Steve Bigelsen  Steve Bigelsen, MD is a physician specializing in Allergy and Asthma, who in July 2016 was diagnosed with pancreatic adenocarcinoma . He had tumors in the head and the tail with scattered peritoneal metastases and a CA19-9 of 11,575 U/ml. Working with physicians from Weill-Cornell and Johns Hopkins, he began treatment with gemcitabine and capecitabine, plus IV paricalcitol (an analog of Vitamin D) and hydroxychloroquine (an old malaria drug). Both of these are in clinical trials separately, however, no one had ever combined them. Both are relatively safe, inexpensive, and may be prescribed by ...