Dan Grennan risks becoming a causality in Joe Wicks' war on ultra-processed food as he bites into the 'turd brick' protein bar the fitness guru warns may cause premature death View 5 Images Joe Wicks' bar causes cancer – yum (Image: Dan Grennan )

Stroke, cancer and diarrhoea – the risks of eating Joe Wicks' protein bar were clear . But the threat of premature death has never stopped me from achieving my goals – informing the glorious Daily Star readers. ‌

Armed with a two litre bottle of water and the moxie of a man approaching middle age with reckless abandon, I tore open the foil packaging and revealed what looked like a turd brick deposited by a consumer of sweetcorn. Dear reader, I hope you appreciate my sacrifice. ‌

The first thing you notice about the "bar" is

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