Vitamin B pills for loss of smell

COULD a vitamin found in Marmite treat the loss of smell that’s caused by Covid?

Blood tests involving 201 Covid patients found those who lost their sense of smell had lower levels of vitamin B12, which is found in dairy and yeast extracts, such as Marmite, according to new research in the International Archives of Otorhinolaryngology. Their B12 levels were around 25 per cent lower.

A trial is under way at Benha University in Egypt to see if vitamin B12 supplements can restore the ability to detect odours.

It’s thought low levels of vitamin B12 harms nerve cells involved in the sense of smell.