Hidden salt in food is silently damaging your heart and brain

Too much salt in the diet is putting millions at risk of serious health problems. Experts warn that high intake can lead to heart disease, dementia and even depression. Yet most people in the UK are eating far more than the recommended limit without realising it.

Adults in the UK currently consume an average of 8.4g of salt each day—40% above the official maximum of 6g. The problem is made worse by hidden salt in everyday foods like bread, cereals, ready meals and sauces. Only 16% of adults actually know what the daily limit should be.

Over time, excess salt raises blood pressure, a leading cause of heart attacks and strokes. It also forces the heart to work harder, increasing the risk of heart failure—a condition affecting one in three people, many of whom remain undiagnosed. Long-term high intake has now been linked to diabetes, mental health issues and a greater chance of developing dementia. Health campaigners are pushing for stronger action. In Germany, the Deutsche Diabetes Gesellschaft has criticised the government for failing to introduce measures like a sugar tax to cut salt, sugar and fat in processed foods. Managing director Barbara Bitzer called for urgent prevention policies on January 19, 2026. Meanwhile, UK researchers estimate that meeting salt reduction targets by 2030 could prevent around 135,000 new cases of heart disease.

The risks of excess salt are now clearer than ever. Cutting intake to recommended levels could save thousands from heart failure, dementia and other life-changing conditions. Yet without better public awareness and policy changes, the problem is likely to grow.