No. Sea salt is not lower in sodium than table salt — by weight, all salt is about 40% sodium, whether it came out of the ocean, a mine in Pakistan, or a blue cardboard canister. The pretty gray flakes, the pink crystals and the plain white grains are the same compound with different packaging and different price tags.
That surprises a lot of people, because "sea salt" has spent twenty years on the front of packages doing a job that has nothing to do with sodium. So let's take a label apart and see what's actually on it.
The one number that settles it
Salt is sodium chloride. Roughly 40% of its weight is sodium, 60% is chloride. A teaspoon of fine table salt weighs about 6 grams and carries somewhere close to 2,300 mg of sodium — which, not coincidentally, is the entire Daily Value printed on every Nutrition Facts panel in the country.
Sea salt has the same chemistry. What it has in addition is trace minerals — magnesium, calcium, potassium — in quantities so small they don't change the sodium math in any meaningful way.
There is one honest asterisk, and it's about volume, not virtue. Big flaky crystals don't pack as tightly into a spoon as fine grains do. A teaspoon of coarse kosher salt can hold anywhere from about half to most of the sodium of a teaspoon of table salt, depending on the crystal shape. So if you cook by the pinch, switching to a flakier salt genuinely does put less sodium in the pot — not because the salt is different, but because you're physically moving less of it. That's a useful trick. It is not what the front of the package is implying.
So why does "sea salt" sound healthier?
Because it sounds like weather and table salt sounds like chemistry. That's the whole mechanism. Front-of-package words like sea salt, natural, artisan and hand-harvested are marketing claims, and marketing claims live on the front. The regulated information lives on the back, in two places: the Nutrition Facts panel and the ingredient list.
Read the back. Always the back.
The ingredient list rule that does the most work
Ingredients are listed in descending order by weight. Heaviest first. That single rule tells you more about a seasoning jar than anything on the front label.
Pick up a garlic salt, a lemon pepper, a "steak seasoning," a Cajun blend, most things labeled all-purpose. If the first word is salt — or sea salt, or kosher salt — then salt is the largest thing in the jar by weight, and the flavoring is what's sprinkled into it. Sometimes that's exactly right. A steak wants salt. But it means you are not "adding a little seasoning" to your green beans. You are salting them, with herbs along for the ride.
Two more words worth spotting while you're back there:
- Silicon dioxide, calcium silicate, sodium aluminosilicate. Anti-caking agents. They keep powder pouring freely in a warehouse. They are not food, and they take up room that could have been spice.
- Monosodium glutamate, disodium inosinate, sodium benzoate. Notice the first word in each. Sodium arrives under a lot of names besides "salt."
The six label phrases, decoded
These are regulated, and they mean specific things per serving. Worth knowing, because "no salt added" and "salt-free" are not the same sentence.
| What the package says | What it legally means |
|---|---|
| Sodium-free / salt-free | Less than 5 mg of sodium per serving |
| Very low sodium | 35 mg or less per serving |
| Low sodium | 140 mg or less per serving |
| Reduced sodium | At least 25% less than the regular version of that product |
| Light in sodium | At least 50% less than the regular version |
| No salt added / unsalted | No salt was added during processing — the food may still contain sodium naturally |
Notice the trap in those last rows. "Reduced sodium" on a product that started out enormously salty can still land you somewhere high. It's a comparison, not a standard.
The serving size sleight of hand
Here's the one that gets everybody. Spice labels almost always declare a serving of a quarter teaspoon. A quarter teaspoon is a rounding error. It makes any number on the panel look small.
So when you see 95 mg of sodium per serving and think "that's nothing," do the multiplication first. If you shake a full tablespoon over a sheet pan of potatoes — which is what actually happens in a real kitchen — that's twelve servings. Twelve times 95 is 1,140 mg, and you haven't salted the chicken yet.
The number on the panel is true. The serving size is theater. Multiply before you judge.
What about salt substitutes?
Most products sold as "salt substitute" are potassium chloride, sometimes cut with a little sodium chloride. Potassium chloride does register as salty on the tongue, and for a lot of people it also carries a metallic or slightly bitter finish, especially once it's heated. Some people never notice it. Some people can't get past it.
One straightforward note: potassium is something certain medications and certain conditions make a person pay close attention to. If either of those describes you, that's a question for your doctor before you swap shakers — not something to sort out from a blog post.
The approach we'd suggest instead doesn't reach for a salt stand-in at all. It replaces salt's jobs — with acid, browning, aromatics, and a genuinely heavy hand on herbs. We walked through exactly how in how to cook flavorful food on a low-sodium diet, and the short version is that most people under-season and under-acidify by a mile.
A two-minute audit of your own cabinet
Pull down five jars tonight. For each one:
- Turn it around. Find the ingredient list.
- Read the first word. Is it salt?
- Find the serving size on the panel, then multiply the sodium by four to get a per-teaspoon number you can actually reason about.
- Scan for silicon dioxide or calcium silicate.
- Open it and smell it. If a blend smells like dust, it's old, and no amount of it will taste like anything.
You'll likely find two or three jars that are mostly salt and one that's mostly nothing. That's normal. That's the shelf.
What our own labels say
We'll hold ourselves to the same reading. The OG is sea salt, organic garlic, organic black pepper. Three ingredients, and the first one is salt — we're not going to pretend otherwise. It's a wonderful thing on a steak, on brisket, on roasted potatoes, and it is a salt-forward blend by design. It runs $9.49 for the 3.4 oz glass jar and $13.49 for the 5 oz resealable pouch.
When you want the flavor without the sodium coming along with it, the jar is Zilch. Nada. None. — fourteen organic herbs and spices and no salt at all. Organic onion, garlic, turmeric, paprika, celery seed, coriander, basil, oregano, dill weed, black pepper, parsley, thyme, cayenne and cumin. USDA Certified Organic, kosher, gluten free, no MSG, no fillers, no anti-caking agents. It's $9.49 for the 1.9 oz glass jar and $13.49 for the 5 oz resealable pouch — and because there's no salt in it, you can be generous. A full tablespoon per pound of meat or per sheet pan of vegetables, not a pinch.
If you'd like to see it work on something nicer than a weeknight pan of broccoli, our salt-free grilled pork tenderloin with peach salsa is the one we put in front of company.
Come cook with us
We're a small, family-run outfit making USDA Certified Organic seasonings in small batches, with every ingredient printed on the label — because there's nothing on ours we'd rather you didn't see. If you'd like to taste one before you spend anything, we'll send you a free jar.
Either way, turn a jar around tonight. It takes two minutes, and you'll never buy seasoning quite the same way again.