If you use folate...you will die of cancer

Folic acid and vitamin B supplementation was associated with an increase in cancer incidence, cancer mortality, and all-cause mortality in a new analysis with long-term follow-up of data from 2 trials conducted in Norway, where there is no folic acid fortification of foods.
The results are reported in the November 18 issue of the Journal of the American Medical Association. The authors, were led by Marta Ebbing, MD, from Haukeland University Hospital in Bergen, Norway.
Latest Results from Norway
The latest results come from 2 trials conducted in 6837 patients with ischemic heart disease, in which half the participants took supplements of vitamin B (including folic acid) to lower homocysteine levels to see if this would reduce cardiovascular outcomes. It did not, and these results are in line with other large trials. At the same time, both trials showed — independently — an increase in cancer in the supplementation group, compared with the placebo group, but this was not statistically significant.