In this video from the "Cancer and Biochemistry" series, Dr. Colleen Huber, a naturopathic doctor, explains iron's biochemical role in combating cancer. She counters common misconceptions by highlighting how iron supports healthy mitochondrial function via the citric acid cycle and electron transport chain, while cancer cells—lacking robust mitochondria—rely on inefficient lactate pathways that iron deficiency promotes.

Three most important points:

1. Iron drives the citric acid cycle and oxidative phosphorylation in healthy mitochondria, enabling normal cells to outcompete and starve cancer cells that have damaged mitochondria and depend on glycolysis/lactate fermentation.

2. Iron is critical for hemoglobin production, oxygen transport, and electron transfer in the mitochondrial chain, directly countering the oxygen deprivation that initiates cancer per Warburg's observations.

3. Conventional medicine's view that iron "feeds" cancer is misguided; adequate iron levels (avoiding deficiency, e.g., in cases of heavy menstrual bleeding) can support ferric ptosis (iron-induced cancer cell death) and prevent metabolic shifts favoring tumors.