Study shows no increase in cancer risk with added folate

Since October 2009, Australian millers have been required by Food Standards to add 2–3mg of folic acid per kilogram of wheat flour in order to provide individuals with around half the recommended daily intake of the vitamin (400mcg/day) from three slices of bread.

However, the move has been controversial, with public health experts warning it may be insufficient to reduce neural tube defects such as spina bifida and others citing concerns that fortification might increase cancer or mask vitamin B12 deficiency.

International researchers from the B-Vitamin Treatment Trialists' Collaboration studied all