Salt Questions · Health & nutrition
Does sea salt have less sodium than table salt?
Short answer
Not by weight. Sea salt and table salt are both mostly sodium chloride, about 39–40% sodium. The American Heart Association says they have the same basic nutritional value. Coarse or flaky sea salt can have less sodium per teaspoon, but only because fewer crystals fit in the spoon.
Sea salt vs table salt
Weight vs volume
Gram for gram, the sodium is nearly identical. A teaspoon is a different story: a teaspoon of fine table salt weighs about 6 g, while a teaspoon of flaky sea salt may weigh half that. That's less salt, not a lower-sodium salt. If you season to taste, you'll probably add more to compensate.
Other differences
- Table salt is often iodized; sea salt usually isn't.
- Sea salt may contain tiny amounts of other minerals, too small to matter nutritionally.
- Texture and taste differ, which is why cooks prefer sea salt for finishing.
For real sodium reduction
Look at packaged and restaurant foods, which supply most of the sodium people eat, or try a potassium salt substitute.
Related on The Salt Almanac
More health & nutrition questions
- What is the difference between sodium and salt?
- Can eating too little salt be dangerous for your heart?
- Why do I crave salt after a workout?
- How does salt intake affect kidney function?
- What is iodized salt and do we still need it?
- Does salt cause inflammation in the joints?
Cite this page
For school projects and reports. Teachers often prefer the original sources too: see the list below.
The Salt Almanac. (2026, November 8). Does sea salt have less sodium than table salt. https://saltalmanac.com/answers/does-sea-salt-have-less-sodium-than-table-salt
“Does sea salt have less sodium than table salt.” The Salt Almanac, 8 Nov. 2026, saltalmanac.com/answers/does-sea-salt-have-less-sodium-than-table-salt. Accessed [today's date].
“Does sea salt have less sodium than table salt.” The Salt Almanac. Last modified November 8, 2026. https://saltalmanac.com/answers/does-sea-salt-have-less-sodium-than-table-salt.
Original sources
- American Heart Association. Sea salt vs. table salt. https://www.heart.org/en/healthy-living/healthy-eating/eat-smart/sodium/sea-salt-vs-table-salt
- U.S. Food and Drug Administration. Sodium in your diet. https://www.fda.gov/food/nutrition-education-resources-materials/sodium-your-diet