by Richard Ingham PARIS, France (AFP) — 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. […]