top of page
Search

Celtic Salt: What Makes It Different?

Updated: 5 days ago

Salt has been part of traditional food culture for thousands of years. Long before industrial processing, salt was valued not only for flavor, but for preservation and balance in whole-food cooking.


Today, not all salt is created equal.


After my own research, I have found one salt in particular to be, in my opinion, the best salt for your health and therefore my favorite, go-to salt. This is Celtic salt.



Salt and the Earth


Salt is one of the most abundant and essential minerals on Earth. It is present in our oceans, in the soil, and even within our own bodies. In fact, human blood plasma contains sodium in concentrations similar to seawater — a reminder of our deep biological connection to the natural world.


Just as salt helps regulate balance in the ocean and preserves food on land, it plays a role in maintaining balance within us. This parallel is not about excess or trend-driven enthusiasm; it is about recognizing that certain elements have always been foundational to life. When we approach salt with respect — neither fearing it nor overusing it — we honor its long-standing place in both nature and human health.




A Brief History of Salt 


For thousands of years, salt was gathered directly from nature — evaporated from seawater under the sun, harvested from mineral-rich soils, or extracted from salt deposits formed by ancient oceans. In many cultures, salt was so valuable it was traded ounce for ounce, used as currency, and carefully preserved as a life-sustaining resource. Traditional methods retained the natural mineral composition of the salt. 


Over time, industrialization shifted production toward highly refined table salt. Modern table salt is typically mined, heavily processed to remove  impurities and therefore trace minerals, bleached for uniform color, and combined with anti-caking agents to prevent clumping. While this refining process creates a consistent, shelf-stable product, it also strips salt down to nearly pure sodium chloride — a very different substance from the mineral-rich salts historically used in whole-food traditions.



Why Processing Matters


As mentioned above, most commercial table salt undergoes heavy refinement. During processing:


  • Natural minerals are removed

  • Anti-caking agents are often added

  • Texture and moisture are altered


Unrefined salt such as Celtic salt, Himalayan salt, Baja gold sea salt, and Redmond real salt, by contrast, are left closer to their natural form. This results in a more mineral-rich, unaltered salt which is vital to overall health and cell function. Just like we discussed in our first blog of this Salt of the Earth series, ‘Why Minerals Matter,’ where and how the salt is harvested also impacts the salts’ nutritional and compositional profile. 


Redmond Real Salt

Real Salt comes from  a mine in Utah. It has a medium range of mineral content because it’s from an ancient buried sea bed. You can even see the mine on their website! It’s a fine salt with a pink and red speckled color and a mild, subtle flavor. It does well in salt shakers due to its fineness and dryness.


Himalayan Pink Salt

Pink Himalayan Sea Salt comes from an ancient sea salt deposit mine in Pakistan, at the base of the Himalayan mountains. It is composed mostly of sodium chloride, with trace minerals (like iron, magnesium, potassium) providing its pink color. It is commonly used as a healthier, less processed alternative to table salt, offering a milder, slightly earthy flavor. It is a dry salt and comes in both fine and coarse textures making it good for shakers as well as grinders.

Baja Gold Sea Salt

Gold sea salt comes from the Sea of Cortez. It is dehydrated in the sun, rather than mined, and is relatively higher in potassium, magnesium, and sulfur. It also retains natural trace minerals (like zinc, selenium, iodine) and moisture due to gentle solar drying. Its moisture profile can cause it to cake so it is best used in a grinder or sprinkled by hand. Its nutritional profile makes it helpful in the body’s detox pathways and it can help promote a feeling of calm. Adding it to a warm bath for a mineral-rich soak is also a great option!


Celtic Sea Salt

Celtic Sea Salt might be the most recognizable natural salt. It’s been around for years! Celtic Sea Salt can be sourced from Europe, Guatemala, Hawaii, and, traditionally, the Atlantic coast of France. It is unrefined and has the highest mineral content of modern salts. It is often called "gray salt" due to the clay-lined salt pans. It has a high moisture content, a robust briney flavor, and is very rich in magnesium and potassium. It’s a very coarse salt that adds a rich flavor to dishes. It’s not a salt to keep in a shaker but definitely a salt to use for ferments and health benefits! 


All of these salts are better options than table salt when it comes to health. The sources and processes are all natural resulting in more nutritious options. My favorite is Celtic salt because of its high content of minerals and use in fermenting recipes. 


If you have a favorite, we would love to hear which it is and why!




How to Use Celtic Salt


Celtic salt has a slightly briny, mineral-forward flavor. Because it retains moisture, it can taste softer and less sharp than refined salt. It can be used as a replacement for table salt in whole-food cooking, as a key ingredient for fermentation, and for hydration.


Whole-Food Cooking


Celtic salt has a slightly briny, mineral-forward flavor. Because it retains moisture, it can taste softer and less sharp than refined salt.


Here are simple ways to use it:

• Finish roasted vegetables - A light sprinkle after cooking enhances natural sweetness.

• Top avocado, eggs, or salads - A pinch brings out natural richness.

• Use in homemade dressings - Combine with olive oil, apple cider vinegar, and fresh herbs.


Because it retains moisture, it’s often best stored in a ceramic or glass container rather than a metal shaker.


Fermentation

Vegetable Brines

Celtic salt is favored when fermenting, especially vegetables, because it is unrefined, mineral-rich, and free from anti-caking agents or iodine. Its high mineral content helps create a robust, natural environment for beneficial bacteria. While coarse grey Celtic salt can sometimes be slow to dissolve, it is highly regarded for its purity in creating brines.


Check out my favorite Simple Kimchi Recipe using Celtic salt.


Sourdough

Known for its mineral-rich taste, Celtic salt compliments sourdough's rustic flavor and acts just like other non-iodized salts in the dough, providing necessary flavor and controlling fermentation. Because it is moist and sometimes coarse, ensuring it dissolves during the mixing process is key.





Hydration


Hydration is not just about how much water we drink — it’s also about how well that water is absorbed and utilized by the body.


Sodium is one of the primary electrolytes involved in maintaining fluid balance. It works alongside potassium and other minerals to help regulate how fluids move in and out of cells. However, sodium alone does not hydrate — minerals matter. 


Sodium along with small amounts of naturally occurring trace minerals like the high quantity in Celtic salt hydrates the body when a small pinch is added to water or try a Celtic salt water-sole recipe.



Salt of the Earth Living


Salt has been both praised and criticized in modern nutrition conversations. The truth lies somewhere in the middle.


We need sodium.

We benefit from minerals.

We also benefit from moderation.


Choosing a less refined salt does not mean using more of it. It simply means being mindful about the quality of the ingredients you use daily.


When using unrefined salt be sure and get enough iodine in your diet. Below are some suggestions:

  • Seafood: Fish and shellfish.

  • Seaweed: Nori, kelp, or wakame.

  • Dairy Products: Milk, yogurt, and cheese.

  • Eggs: A good source of iodine. 

If you do not consume these foods regularly, talk to your healthcare provider about a supplement. 


Whole-food nutrition is built on small, consistent choices — not extremes. When we choose foods closer to their original form, we align ourselves with traditional wisdom.


That might mean:

  • Sprouting nuts and seeds

  • Eating fermented foods

  • Using mineral-rich salt

  • Cooking more at home


Simple shifts. Sustainable habits.


That’s what “Salt of the Earth” living is about — grounded nourishment that works with the body, not against it.



Resources & Further Reading
Salt History & Traditional Harvesting

• Kurlansky, M. (2002). Salt: A World History. Walker & Company.A comprehensive historical account of salt’s role in trade, preservation, economics, and civilization.

• Smithsonian Magazine – The History of Salt https://www.smithsonianeducation.org/educators/lesson_plans/currency/essay2.html Overview of salt’s historical importance across cultures.

Sodium, Minerals & Human Physiology

• National Institutes of Health (NIH), Office of Dietary Supplements – Sodiumhttps://ods.od.nih.gov/factsheets/Sodium-HealthProfessional/

These explain electrolyte balance, fluid regulation, and mineral interactions without overstating claims.

Hydration & Electrolytes

• Institute of Medicine (2005). Dietary Reference Intakes for Water, Potassium, Sodium, Chloride, and Sulfate.National Academies Press.https://nap.nationalacademies.org/catalog/10925/dietary-reference-intakes-for-water-potassium-sodium-chloride-and-sulfate

Provides foundational research on fluid balance and electrolyte requirements.

Salt Processing & Refinement

• Morton Salt – How Table Salt Is Made (for understanding refinement processes) https://www.mortonsalt.com/article/how-salt-is-made/

These outline modern refining practices and anti-caking additives.

Fermentation & Salt Use in Traditional Foods

• National Center for Home Food Preservation – Fermentation Basicshttps://nchfp.uga.edu/how/can_06/fermenting.html

• Hutkins, R. (2018). Microbiology and Technology of Fermented Foods. Wiley-Blackwell.

These support your statements about non-iodized, additive-free salt in vegetable brining.

On Mineral Content of Sea Salt

• Drake, S. L., & Drake, M. A. (2011).“Comparison of salt taste and composition.” Journal of Sensory Studies, 26(3), 225–232.

• Hauser, E. J., & Hays, V. W. (1972).“Mineral composition of refined and unrefined salts.” Journal of Food Science.

These studies show mineral differences between refined and unrefined salts (while noting sodium chloride remains the primary component).


Disclaimer:

This is an educational post of salts, not medical advice. While unrefined salts contain trace minerals, sodium chloride remains their primary component. Mineral content varies by source and harvesting method. Individual sodium needs vary based on health status and activity level.

Comments

bottom of page