"Many use the vitamin before and during pregnancy to reduce the risk of their babies being born with neural-tube defects, such as spina bifida.
But Swedish scientists say the supplement can almost double the chances of multiple births, the children of which are more likely to be premature, have low birth weights or suffer from cerebral palsy.
Read more: https://www.dailymail.co.uk/health/article-62918/Why-folic-acid-lead-twins.html#ixzz2WEohgmOg
Follow us: @MailOnline on Twitter | DailyMail on Facebook"