A diet high in ultra-processed foods could hurt your brain for similar reasons that these diets are connected to a slew of other chronic diseases. Processed foods can be healthy, it’s the ultra-processed items that are linked to poor health. What’s the difference? Very generally, ultra-processed foods use ingredients not found in a home kitchen. Visit https://on.natgeo.com/46M8vFW to learn more about reducing the quantity of ultra-processed foods in your diet. | National Geographic