"Folic acid (vitamin B9) is important in a number of human metabolic pathways as well as being needed for nucleic acid synthesis, growth and the healthy development of a foetus [1]. Folic acid can be absorbed from the diet, with the highest levels of folic acid being found in foods such as meat extracts (e.g. Bovril), yeast extracts (e.g. Marmite), liver, asparagus, brussel sprouts, spinach, as well as being available as supplements [1]. Recently cereals and bread have been fortified with folic acid to try and eliminate folic acid deficiency especially in pregnant women."