UK’s hidden salt crisis could trigger 135,000 heart disease cases by 2030

Cutting salt intake across the UK could save thousands from heart disease by 2030. New research suggests meeting official guidelines would prevent around 135,000 cases. Yet most adults still consume far more than the recommended amount—often without realizing it.

The average adult in the UK eats about 8.4g of salt each day. This is 40% higher than the 6g daily limit, roughly equal to a teaspoon. Over a week, this adds up to the salt found in 155 packets of crisps.

Much of this intake comes from hidden sources. Bread, cereals, and ready-made sauces often contain high levels of salt. Many people remain unaware of these amounts, with only 16% knowing the official 6g limit for those aged 11 and over. Long-term overconsumption raises the risk of serious health problems. High salt intake is linked to high blood pressure, which contributes to half of all heart attacks and strokes. Over time, it can also weaken the heart, leading to heart failure—a condition affecting one in three UK adults, often undiagnosed until severe damage occurs. Some studies even suggest a connection between excess salt and mental health issues, including dementia.

Meeting the 2030 salt reduction targets could bring major health benefits. Lowering intake to 6g per day may prevent thousands of heart disease cases. With many unaware of hidden salt in everyday foods, public awareness and dietary changes will be key to achieving this goal.