They say you either love it or hate it. 

Well know it's claimed a vitamin found in Marmite could help significantly reduce birth defects and miscarriages.

That's according to research on mice which was carried out in Sydney, Australia. 

It suggests vitamin B3 - which is also common in meat and vegetables - can cure deficiencies that stop embryos and organs developing correctly.

Professor Sally Dunwoodie, who led the study, says the ramifications could be huge.