Vitamin B12 deficiency

High serum vitamin B12 is linked to modest cancer risk

Cancer incidence rose modestly above baseline with adjusted hazard ratios of 1.05 to 1.08, while mortality followed a J-shaped pattern across serum…Cancer incidence rose modestly above baseline with adjusted hazard ratios of 1.05 to 1.08, while mortality followed a J-shaped pattern across serum vitamin B12 strata.