The vitamin B12 in Marmite boosts something called gamma-aminobutyric acid (GABA) in your brain. This substance helps regulate excitability in the neurons in your brain, and initial studies have shown it may help with the symptoms of anxiety, ADHD, and Tourette's, though more research is needed.

Why has Marmite been banned?

The savoury spread Marmite has been banned in Denmark because of the number of added vitamins and minerals it contains. Nutritionist Nicole Berberian discusses the product's health properties, and considers why the Danish authorities may have banned it.

Is Marmite good for weight loss?

Scientists have discovered the secret to weight loss and regulating diet. Experts from the University of Sussex have found the presence of umami – which is known as the fifth taste sense – helps reduce appetite whilst also making food tasty.