Madonna's worst nightmare would be to eat a Marmite sandwich.

The 53-year-old star is not a fan of the salty yeast spread - which has a very acquired taste and is popular in Britain - and even though 14-year-old daughter Lourdes is trying to get her to try one, Madonna is standing firm.

Speaking at the premiere of her new movie 'W.E.' at the Toronto Film Festival, Madonna is quoted by the MailOnline as saying: "I would do anything for my children. For sure. Except have a Marmite sandwich. My daughter's insistent that I eat one, but I won't! Vile!"

Lourdes is thought to have developed a taste for Marmite - which has the slogan, 'You either love it or hate it' - while she was living in the UK during Madonna's marriage to British film director Guy Ritchie, which ended in 2008.

While Madonna - who has three other children, Rocco, 11, Mercy, six, and five-year-old David - isn't a fan of Marmite Elizabeth Hurley recently revealed she can't get enough of the dark savoury spread

The model-and-actress had been in New York with her nine-year-old son Damian to film her scenes for TV show 'Gossip Girl' but because of the threat of Hurricane Irene, they were confined to their hotel home where they gorged on Marmite toast.

She tweeted: "Still confined to barracks, so eating marmite on toast while learning GG lines."