Everything that goes in your mouth affects your gene expression and food has a massive impact on your brain, both directly and indirectly through the gut microbiome. When you consume a diet high in ultra-processed foods, you significantly increase your risk of mental illness. Having a diet with good diversity, with lots of good nutrients in it, actually supports really good mental health. And for anybody who's really interested in that, go and listen to my podcast with Professor Phyllis Jacka, who's an absolute gun.