Salt in Your Diet: Daily Limits and How to Read Food Labels
Understand the recommended daily salt limit in the UK, how to interpret salt on food labels, and practical strategies to reduce salt intake for long-term health.
Why is Salt an Important Topic in the UK?
UK health authorities place a strong focus on monitoring and reducing average salt intakes. Efforts to inform the public and update food labelling are aimed at supporting healthier choices and helping people remain within recommended limits, even if their diets are largely based around ready meals, cured meats, or snacks. Understanding why salt matters and where it hides is a helpful starting point for anyone wanting to look after their long-term wellbeing.
Excess salt intake has been associated with high blood pressure, a risk factor for heart disease and stroke.
“Much of the salt we eat is hidden in everyday packaged foods, not just sprinkled on at the table.”
What Is the Recommended Daily Salt Limit UK?
Age-specific limits are set for younger children, and those with certain medical conditions may require even stricter individual advice, often focusing on sodium rather than salt. People with clinician-directed sodium restrictions should always follow their healthcare provider’s guidance. For most UK adults, the key message is to be aware of hidden salt in foods, aim to stay below 6g daily, and make gradual changes where possible.
- NHS maximum salt intake: 6g salt/day for adults and children 11+
- Lower salt limits for younger children
- Personalised clinical advice may require stricter or tailored restrictions
6g of salt per day is the upper daily limit for adults in the UK. This should not be viewed as a recommended intake goal.
“The daily salt limit UK authorities recommend is a maximum for the general population, not a personal goal.”
Salt vs Sodium: Understanding the Difference
If a food label lists sodium, you can estimate the equivalent amount of salt by multiplying the sodium figure (in grams) by 2.5. For example, 1g sodium is equivalent to 2.5g salt. This distinction matters, as some clinical restrictions focus on sodium intake for specific health reasons. On UK food labels, most products now list salt, making it easier to track your intake. Understanding this conversion is especially important if you follow international recipes or nutrition advice, which may reference sodium instead of salt.
- Salt = sodium chloride; sodium makes up part of salt
- To convert sodium to salt, multiply by 2.5
- Check whether labels state 'salt' or 'sodium'
1g sodium ≈ 2.5g salt. In the UK, most food labels state salt content directly.
“If you see sodium on a label, remember to multiply by 2.5 to understand how much salt you're eating.”
How to Read Salt in Food Labels
• High salt: More than 1.5g salt per 100g (or 0.6g sodium) • Low salt: 0.3g salt per 100g (or 0.1g sodium) or less • Anything in between is considered medium
- Use the 'per 100g' value to compare products
- High: >1.5g salt per 100g; Low: ≤0.3g salt per 100g
Check both the total salt per 100g and per portion, as portions can vary.
“Understanding salt in food labels helps you make informed choices and keep to daily recommendations.”
Recognising High and Low Salt Foods
Regularly reading food labels helps you spot sources of salt you might otherwise overlook. Swapping high-salt products for lower-salt versions, where available, can make a noticeable difference to your overall intake. Look out for food packaging with green (low) salt labels, or check if lower salt alternatives are available in your usual supermarket aisle.
- Processed meats and ready meals are often high in salt
- Fresh foods are usually low in salt unless processed
Cheese, bread, and ready meals can be hidden sources of salt in the UK diet.
“Small, everyday swaps—like choosing lower-salt bread or ham—can make it easier to stay within the 6g salt a day guideline.”
Where Does Most of Our Salt Come From?
Paying attention to labels and ingredients, even on foods you may not expect to be high in salt, is a key strategy for reducing salt intake across the week without major changes to your mealtime routines.
- Packaged and processed foods: major source of salt
- Salt added during food preparation is usually less significant than salt already present in processed items
About three-quarters of the salt we eat is already present in food when we buy it.
“Checking salt in food labels is especially important for processed or packaged foods, where much of our intake hides.”
Tips to Reduce Salt Intake in Everyday Life
Remember that tastebuds adapt over time, so gradual reductions in salt can make it easier to adjust to less salty flavours. For families, modelling lower salt habits and involving children in label reading reinforces healthier choices from an early age.
- Cook with fresh, unprocessed ingredients where possible
- Use herbs and spices instead of adding salt
- Gradually reduce the amount of salt in recipes
Small, consistent changes in shopping and cooking habits can help you reduce salt intake without sacrificing flavour.
“Simple swaps and label comparisons can bring your salt intake closer to recommended limits—without losing out on taste.”
Practical Shopping Guide: Keeping to the 6g Salt a Day Limit
- Always check the salt (or sodium) information per 100g and per portion size
- Choose foods with green (low salt) indicators, especially for items you eat daily
- Look for lower salt or reduced salt versions of staples such as bread, baked beans, or cheese
- Consider cooking more meals at home to control exactly how much salt you add
- Swap salty snacks like crisps and salted nuts with fresh fruits, yoghurt, or unsalted alternatives
- Check per 100g and per portion
- Look for green (low salt) label indicators
- Cook at home more often
The average UK adult already exceeds the daily salt limit, mainly through processed foods—checking labels can help keep you on track.
“Reading labels and choosing lower-salt versions of everyday staples can support long-term health.”
Food Labels, the Eatwell Guide, and Healthy Choices
If you want more detail about the Eatwell Guide, its food group recommendations, and how labels connect to everyday choices, see our in-depth guide to the Eatwell Guide.
- The Eatwell Guide emphasises reducing salt as part of balanced eating
- Food labels are a tool to help implement the guide’s recommendations
Salt is one factor in the broader context of balanced nutrition outlined in the NHS Eatwell Guide.
“Using label information alongside guidance like the Eatwell Guide supports informed, balanced food choices.”
When to Seek Medical Advice About Salt Intake
Persistent symptoms such as swelling, ongoing high blood pressure readings, or other health concerns relating to salt or sodium should be discussed with a doctor or dietitian. The information provided here is for general guidance and not a substitute for individualised medical care.
- Seek advice if you have a condition affecting blood pressure, kidneys, or heart
- Follow clinical recommendations for sodium if you are under specialist care
General population salt limits may not be suitable for people with certain health conditions—always consult a healthcare professional for personal advice.
“People with medical conditions affecting sodium balance should prioritise care team advice over general guidance.”
Related buying guides
Ready to compare options? These guides break down products in this category using clearly explained criteria.
Health disclaimer: WellnessScopes provides general informational and educational content. This is not intended to diagnose, treat, cure or prevent any disease and should not replace professional medical advice. Consult a qualified healthcare professional regarding individual health concerns, medications or supplements.