A study published in PLOS Medicine of 1700 women in the UK, New Zealand and Singapore who were trying to conceive, showed nine in ten had marginal or low levels of folate, riboflavin, vitamin B12 or vitamin D.
The Guardian newspaper noted that some researchers on the paper 'received grants from Nestlé and were co-inventors on patent filings around the enhanced supplement', given to women on the trial to see if it would raise their levels of these vitamins.
