The Sodium-Blood Pressure Connection
Sodium is a mineral found in salt (sodium chloride) and is essential for the body in small amounts. However, too much sodium causes your body to retain water, which increases blood volume and puts extra pressure on your artery walls — raising your blood pressure.
Research consistently shows that reducing sodium intake can lower blood pressure significantly, especially in people who already have hypertension. Even a modest reduction in daily salt intake can reduce the risk of stroke by 23% and heart disease by 17%.
How Much Salt is Too Much?
The NHS and World Health Organisation recommend no more than 6 grams of salt (about one teaspoon) per day for adults. Most people in the UK consume around 8–9 grams daily — significantly more than recommended.
🧂 Understanding Food Labels
- High sodium: More than 1.5g salt (0.6g sodium) per 100g — eat sparingly
- Medium sodium: 0.3g–1.5g salt per 100g — eat in moderation
- Low sodium: Less than 0.3g salt per 100g — good choice
Hidden Sources of Sodium
The majority of the salt we eat — around 75% — does not come from the salt shaker. It is hidden in everyday processed and packaged foods.
⚠️ High-Sodium Foods to Watch Out For
- Bread and cereals
- Ready meals and takeaways
- Canned soups and vegetables
- Processed meats: bacon, ham, sausages
- Cheese and butter
- Soy sauce, ketchup, and stock cubes
- Crisps, crackers, and salted snacks
Practical Tips to Reduce Your Salt Intake
- Remove the salt shaker from your dining table
- Cook from scratch at home where possible
- Use herbs and spices such as garlic, lemon, black pepper, and cumin instead of salt
- Choose low-salt versions of sauces, soups, and condiments
- Rinse canned vegetables and beans before use
- Read food labels and compare sodium content between products
- Limit eating out and choosing lower-sodium options when you do
💡 Good news: Your taste for salt adapts over time. After a few weeks of eating less salt, salty foods will actually start to taste too salty and you will naturally prefer lower-sodium options.
Have more questions? Ask Uncle Heart! 🫀
Uncle Heart is your friendly AI health guide — available 24/7 to answer all your questions about heart health, nutrition, and hypertension.
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