I tried the UK’s ‘saltiest’ sandwich – here’s what I learned

• Single meal salt intake: A UK sandwich can contain the entire recommended daily salt allowance (6g), demonstrating how easily patients exceed guidelines in one sitting without realising it.
• Public health messaging: Current salt awareness remains poor; patients may not recognise high-sodium foods, suggesting GPs should provide specific dietary guidance on processed foods and hidden sodium sources.
• Clinical relevance: Excess salt consumption contributes to hypertension and cardiovascular disease; opportunistic dietary counselling during consultations could help reduce patient sodium intake and associated health risks.

Health correspondent James Gallagher absorbs more than the recommended daily limit in just one meal to find out how salt affects our bodies.

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