Prof Jack Cuzick talks to ecancer at ECC 2013 about a discussion on a paper authored by Dr Autier on the prevention of cancer using vitamin D.

The study found that the considerable discrepancy between observational studies and randomised trials strongly indicates that vitamin D status is essentially a consequence rather than a cause of ill health. Inflammatory processes would be the cause of declines in 25(OH)D concentrations. This would explain why decreased 25(OH)D levels are associated with so many conditions, including poor survival (for any condition), cancer aggressiveness and colorectal cancer occurrence.