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Sea salt, rock salt, pink salt… which one’s actually worth its salt? Our expert helps us break it down
Summary
1No salt is better than another
Sea salt, rock salt and table salt may look and taste different, but they all contribute sodium to your diet.
2How much salt per day?
For adults, the NHS recommends no more than 6g of salt a day – about one level teaspoon.
3Focus on the bigger picture
Rather than searching for the ‘healthiest’ salt, use a little less overall and build meals around potassium-rich foods instead.
Salt can make a simple meal sing – but it can also be easy to overdo without realising. Between rock salt, sea salt, pink salt and table salt, there are plenty of options on the shelf and some sound a lot more ‘natural’ than others. But does that actually make them better for you?
The short answer: not really. Different salts can vary in taste, texture and how they’re used in cooking, but they all contribute sodium to your diet. And for most of us, the bigger health question isn’t which salt we use – it’s how much salt we’re having overall. As our science communications manager, Heeral Tomlinson, explains, “Terms such as ‘natural’, ‘raw’ or ‘unrefined’ can sound appealing, but they don’t necessarily make a salt healthier. All salts still contribute sodium to the diet.”
So, is salt good for you? In small amounts, yes – your body needs sodium to help with fluid balance, nerve signals and muscle function.1 But too much salt is linked with high blood pressure, which can increase your risk of heart disease and stroke.1,2 Let’s take a look at rock salt, sea salt and table salt – and what really matters for your health.
What is salt?
Let’s break it down: salt is a mineral made mainly from sodium chloride.¹ Sodium is the part your body needs in small amounts, but it’s also the part linked to health risks when you have too much.1,2 You’ll find salt naturally in some foods, but most of the salt we eat comes from packaged, processed and ready-made foods – things like bread, cheese, sauces, soups, snacks and ready meals.1 That means your salt intake isn’t only about what you sprinkle on top at the table.
The NHS recommends adults have no more than 6g of salt a day, which is about one level teaspoon.1 That’s the same as around 2.4g of sodium.1 Heeral says, “No salt is really better than another, which means that moderation matters more than the variety you choose. The healthiest approach isn’t finding a healthier salt; it’s keeping overall salt intake within recommended limits.”
The NHS recommends adults have no more than 6g of salt a day, which is about one level teaspoon.1 That’s the same as around 2.4g of sodium.1 Heeral says, “No salt is really better than another, which means that moderation matters more than the variety you choose. The healthiest approach isn’t finding a healthier salt; it’s keeping overall salt intake within recommended limits.”
Is sea salt the same as rock salt?
Not exactly, but they’re more similar than you might think. Sea salt is made by evaporating seawater. Rock salt is mined from underground salt deposits, often left behind by ancient seas (sounds mystical doesn’t it). Table salt is usually mined too, but it’s more heavily refined and often has anti-caking agents added to help it pour smoothly. In some countries, table salt may also be fortified with iodine, although this is less common in the UK.3
The main thing to know? Sea salt, rock salt and table salt are all still salt. They’re mostly sodium chloride and they all count towards your daily salt intake. “Sea salt isn’t lower in sodium than table salt," says Heeral. "Pink, sea and rock salts may look different, but they’re all sources of sodium.” So, while rock salt or sea salt may feel more special in the kitchen, they shouldn’t be seen as a healthier free pass.
What’s the difference between rock salt, sea salt and table salt?
Here’s a quick comparison.
| Type of salt | Where it's from | Texture and flavour | Common uses | Health note |
|---|---|---|---|---|
| Rock salt | Mined from underground salt deposits | Coarse, crunchy and mineral-tasting | Salt grinders, roasting, seasoning. salt crusts | Mostly sodium chloride and counts towards salt intake |
| Sea salt | Made by evaporating seawater | Fine, coarse or flaky; often used for texture | Finishing dishes, cooking, seasoning | Similar to sodium content to table salt |
| Table salt | Usually mined and refined | Fine, consistent crystals | Baking, cooking, saltshakers | Still contributes sodium |
| Pink Himalayan salt | Mostly mined in Pakistan | Coarse or fine grains | Finishing, grinders, presentation | Minerals add colour, but not significant benefits |
Taste and texture are the real differences. Flaky sea salt can add crunch to roasted veg or dark chocolate, while fine table salt dissolves quickly and is useful in baking. Coarser rock salt can be handy in grinders or salt-baked recipes. You might also see pink Himalayan salt described as a more ‘natural’ option. It’s a type of rock salt with trace minerals that give it its pink colour, but it still mainly contains sodium chloride.
“While different salts can vary in flavour, texture and culinary uses, there’s little evidence that one type is substantially healthier than another," says Heeral. "For most people, paying attention to overall salt intake is more important than choosing between sea salt, rock salt or table salt.”
Is sea salt healthier than table salt?
Sea salt is often marketed as more natural, but nutritionally, it’s very similar to table salt. Both contain comparable amounts of sodium by weight.4 Some sea salts and rock salts contain tiny amounts of minerals such as magnesium, calcium or potassium, but usually not enough to make a meaningful difference to your diet.4,5 You’d need to eat far more salt than recommended to get useful amounts of these minerals – which wouldn’t be a healthy trade-off. Heeral says, “If you enjoy the flavour or texture of natural salts, there’s nothing wrong with using them. However, they shouldn’t be viewed as a free pass to consume more salt.” A more helpful way to think about it is this: choose the salt you enjoy cooking with, then use it sparingly.
There’s another part of the conversation too – potassium. The World Health Organization recommends reducing sodium intake and increasing potassium intake to support healthier blood pressure.2,6 “Most people consume more sodium and less potassium than recommended," says Heeral. "That's why increasing potassium-rich foods is often encouraged as part of a healthy dietary pattern.”
Potassium-rich foods to include more often include:
- sweet potatoes
- bananas
- avocados
- spinach and leafy greens
- beans, lentils and chickpeas
- dairy products, if you eat them
“Instead of worrying about whether sea salt is healthier than table salt, focus on building meals around vegetables, fruit, pulses and other minimally processed foods. This naturally increases potassium intake while helping to keep sodium intake in check.”
A note of caution: people with kidney disease and anyone who’s been told to monitor potassium, should speak to their GP or dietitian before increasing potassium-rich foods or using potassium-based salt substitutes.7
Rock and sea salt FAQs
For adults in the UK, the recommended maximum is 6g of salt per day – about one level teaspoon.1 Children need less, depending on their age.1 This includes salt already in foods, not just salt you add yourself. A useful habit is to check food labels – the NHS says foods with more than 1.5g salt per 100g are high in salt, while foods with 0.3g salt or less per 100g are low in salt.1
Yes, but be careful with measurements. Rock salt and sea salt can have different crystal sizes, so a teaspoon of one may not give the same saltiness as a teaspoon of another. For everyday cooking, season gradually and taste as you go. For baking, it’s usually best to use the type of salt specified in the recipe, as crystal size can affect how evenly it mixes.
Use the salt that works best for the dish – but keep the amount modest. Fine table salt is useful for baking and evenly seasoning sauces. Flaky sea salt works well as a finishing touch when texture matters. Rock salt can be good for grinders or recipes where a coarse texture is useful. The healthiest habit is less about the type and more about using a light hand.
There isn’t one ‘healthiest’ salt. Rock salt, sea salt, pink Himalayan salt and table salt all contain sodium and having too much sodium can contribute to high blood pressure.1,2 Choosing a salt you enjoy for flavour is fine, but it’s best to treat all salt in the same way: use a little, not a lot. Heeral’s suggestion is to focus on your overall diet – more minimally processed foods, more plants and pulses and fewer salty packaged foods.
There’s no good evidence that rock salt specifically helps muscle cramps. Muscle cramps can happen for lots of reasons, including exercise, dehydration, pregnancy, certain medicines or underlying health conditions.8 Your body does need electrolytes, including sodium and potassium, for normal muscle function, but taking extra salt isn’t usually the answer – especially as most people already eat more salt than recommended.1,2 Speak to a healthcare professional if cramps are frequent, severe, happen often at night or come with swelling, weakness or other symptoms.
The final say
Rock salt, sea salt and table salt may look and taste a little different, but none of them are better than the other for your health. They all contribute sodium and the best approach for most people is to go easy on the saltshaker.
That doesn’t mean your food has to be bland. Try using herbs, spices, garlic, citrus, vinegar, chilli, black pepper or toasted seeds to build flavour without relying on salt. And rather than chasing the ‘healthiest’ salt, focus on a balanced diet with plenty of potassium-rich whole foods, such as vegetables, fruit, beans, lentils and chickpeas.
Want to add more expert knowledge to your plate? Read this guide to find your next favourite low-calorie snacks or dive into our edit on the tastiest protein-packed snacks.
Disclaimer – This article provides informational advice and is not a substitute for medical care. Working with experts for accuracy, we take great care to ensure the information is up-to-date and relevant. However, you should always consult your GP or healthcare professional before using supplements or alternative products, particularly if you have medical conditions or are under supervision.
1. NHS. Salt in your diet [Internet]. NHS; reviewed 17 Apr 2023 [cited 8 Jun 2026]. Available from: https://www.nhs.uk/live-well/eat-well/food-types/salt-in-your-diet/
2. World Health Organization. Guideline: sodium intake for adults and children [Internet]. Geneva: World Health Organization; 2012 [cited 8 Jun 2026]. Available from: https://www.who.int/publications/i/item/9789241504836
3. British Dietetic Association. Salt [Internet]. BDA; review date Oct 2028 [cited 8 Jun 2026]. Available from: https://www.bda.uk.com/resource/salt.html
4. American Heart Association. Sodium sources: where does all that sodium come from? [Internet]. American Heart Association; 2025 [cited 8 Jun 2026]. Available from: https://www.heart.org/en/healthy-living/healthy-eating/eat-smart/sodium/sodium-sources 5. Action on Salt. Other salts [Internet]. Action on Salt; [cited 8 Jun 2026]. Available from: https://www.actiononsalt.org.uk/less/reducing-intake/other-salts/
6. World Health Organization. Guideline: potassium intake for adults and children [Internet]. Geneva: World Health Organization; 2012 [cited 8 Jun 2026]. Available from: https://www.who.int/publications/i/item/9789241504829
7. British Heart Foundation. Salt [Internet]. BHF; [cited 8 Jun 2026]. Available from: https://www.bhf.org.uk/informationsupport/support/healthy-living/healthy-eating/salt
8. NHS. Leg cramps [Internet]. NHS; reviewed 1 Dec 2023 [cited 8 Jun 2026]. Available from: https://www.nhs.uk/conditions/leg-cramps/
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