image: ©surachetsh | iStockSonia Pombo, Head of Research and Impact at Action on Salt & Sugar, located at Queen Mary University of London, advocates for stronger policies to reduce salt content and protect public health
Picture this: a parent packing a lunchbox before school, a commuter grabbing a sandwich between meetings, or a quick dinner on the table after a long day. None of it feels risky, yet each can hide a significant health risk. Unbeknownst to that commuter, that lunchtime sandwich may contain more than half their maximum salt limit in one portion alone. For millions across the UK, this is how salt silently dominates our daily diets: unnoticed, unremarkable, and largely absent from political debate.
Obesity has dominated prevention discussions of late, but somewhere along the way, salt has slipped out of view, despite driving enormous levels of preventable harm. Average salt intake in England remains stubbornly high at 8.4g/day, 40% higher than the maximum limit. This excess salt raises blood pressure, the leading modifiable risk factor for heart attacks and strokes – for many, these cases are entirely preventable and can very often be solved by eating less salt. Yet when we look at efforts to reduce the UK’s salt consumption, these have come to a distinct halt. This is not because the problem is poorly understood, or because solutions are unclear or impractical, but because policymakers have lost sight of it.
The ubiquity of salt in everyday food products
New analysis released for Salt Awareness Week in May highlights just how entrenched the issue has become. High-street sandwiches routinely contain more than half of an adult’s recommended daily salt intake, with one reported to exceed the full daily limit. Sandwiches sold in popular high-street coffee shops and bakeries were typically more expensive, and at the same time, a wide variation between brands shows that lower salt content is possible and already happening in some businesses.
Most of the salt we eat is already added by food businesses before it even reaches our plate, and once it’s there, it cannot be removed. Education campaigns and label reading have an impact, but they cannot fix a system where salt is embedded in everyday foods. Front-of-pack labelling remains voluntary, inconsistently applied, and often absent altogether in the out-of-home sector, where many people now eat regularly. Consumers are frequently expected to make ‘informed choices’ without access to information. That is why salt reduction works best as a population‑wide intervention and not a test of individual willpower, where only the worried well benefit.
Few policies deliver better value for money. For every 1g/day reduction in population salt intake, more than 4,000 premature deaths are prevented, with savings of £288 million to the NHS. People do not need to count every grain of salt in their food to benefit; they just need healthier defaults, and at a time when prevention policy is pitched against treatment, this crucially must become the norm.
The prevention debate has narrowed
Weight‑loss medications have captured political and fiscal attention, but they do nothing to tackle salt‑driven high blood pressure. Allowing unhealthy food environments to drive disease, only to rely on increasingly expensive treatments to manage the consequences, is neither sustainable nor sensible. Treating the symptoms while ignoring the underlying causes is a costly and avoidable business model for the NHS. High blood pressure affects people of all sizes and remains the leading cause of stroke, heart failure and kidney disease, making low-cost prevention more important than ever.
Salt reduction matters most for those with the least power to avoid it
Salt reduction complements obesity policy, yet when prevention is measured primarily in calories, salt is pushed off the agenda. This is despite clear evidence that it works; in the early 2000s, the UK’s salt reduction programme drove reformulation, lowered population intake, reduced average blood pressure, and cut deaths from stroke and heart disease. That success has since been replicated internationally, whilst the UK itself has lost momentum.
There has been no official assessment of industry progress for nearly a decade, no renewed targets for businesses, and no clear plan to get salt reduction back on track. Salt consumption was last formally measured in 2018, meaning policymakers lack even a current picture of the problem, and voluntary action has brought patchy results.
Salt reduction matters most for those with the least power to avoid it. Driven by a greater reliance on processed foods, people on lower incomes and children, particularly those from more deprived households, often consume more salt. With two-thirds of children now exceeding recommended salt limits, and blood pressure control now worsening, neglecting salt reduction risks exacerbating these issues and driving greater health harm into the next generation.
A choice about the next decade
The public has had enough. Recent polling shows strong backing for government intervention to improve food healthiness and regulate salt, yet what’s missing is political will. The next ten years will reflect the actions of today. If salt reduction continues to be neglected, the NHS will struggle to deal with the health consequences, many of which will be entirely avoidable. But with action, the UK can restore a proven, low-cost prevention strategy that saves lives and reduces inequalities.
We do not need to reinvent the wheel, but restoring a clear balance of incentives and regulation – managing the right blend of the carrot and stick – will make healthier products the norm.
This means reintroducing ambitious, mandatory salt reduction targets across retail and out‑of‑home food; using fiscal levers to accelerate reformulation; mandating consistent labelling for both retail and out-of-home food; and ensuring that high-salt foods are not exempt from wider food policies, including marketing and promotion restrictions.
Salt reduction remains one of the simplest, cheapest and most effective public health tools available. It is time to bring salt back into focus, and to close one of the most damaging blind spots in UK prevention policy.