Food to boost your mood: Gut bacteria directly linked to your mental health

Two professors at UCC have revealed links between gut bacteria and mental health, writes Ellie O’Byrne

We are outnumbered. For every human cell in your body, there are ten cells of non-human origin. These interlopers make up our microbiome: the community of extraordinary little organisms in the form of bacteria, yeasts and viruses that makes up between 1% and 3% of our body weight… and may be influencing our behaviour and moods far more than we realise.