Study by psychologists at University of York shows Marmite may be brain food

PARIS: In a world bitterly divided into pro- and anti-Marmite factions, lovers of the tangy British spread have found support from an unexpected quarter: brain science.

Experiments found that volunteers who ate a daily spoonful of the dark-brown yeast extract seemed to have higher levels of a vital neuron chemical associated with a healthy brain.

The reason could lie in Marmite’s high levels of vitamin B12, the investigators say.

In a study published on Wednesday, psychologists at the University of York in northern England recruited 28 volunteers and divided them into two groups.

One group ate a teaspoon of Marmite each day for a month; the other ate a daily teaspoon of peanut butter.

The volunteers wore noninvasive skullcaps fitted with electrodes to monitor brain activity while they looked at a screen with a visual stimulus – a large stripey pattern that flickered at a regular rate.

The Marmite group showed a substantial reduction of around 30 per cent in response to the stimulus compared with the peanut butter group.

The work, published in the Journal of Psychopharmacology, sheds a powerful light on how diet can affect brain activity, the researchers say.

How Marmite worked was not clinically investigated.

But the presumption is that it boosts levels of an important neurotransmitter called gammaamino-butyric acid (GABA). — AFP