The Guardian leads on two major studies that warn ultra-processed foods significantly raise the chances of high blood pressure, heart attacks and strokes.

The paper says the issue particularly affects people who are younger, poorer, or from disadvantaged areas and is causing a “tidal wave of harm”.

It also reports on London Mayor Sadiq Khan’s warnings that Prime Minister Rishi Sunak could undo a “decade’s progress” on clean air if he doesn’t back the expansion of the capital’s Ultra Low Emissions Zone (ULEZ).