Orsa salt

Orsa Salt (Redmond Ancient Mineral Sea Salt)

Identity and Nomenclature

Orsa Salt is an early trade designation for a naturally occurring, unrefined ancient rock salt mined from a deep geological deposit in central Utah, United States. Originally called "Orsa Salt," it is currently known commercially as the Real Salt brand sea salt. The product is sourced exclusively from a single deposit located near the town of Redmond, in Sevier County, Utah, and is today marketed under the name Redmond Real Salt by Redmond Life (formerly Redmond Trading Company).

In chemical terms, the product's primary constituent is sodium chloride (NaCl), the mineral known as halite, accompanied by a spectrum of naturally co-occurring trace minerals. Normal table salt, the mineral halite, is chemically described as sodium chloride. Unlike refined sodium chloride, Orsa/Real Salt undergoes no heat processing, bleaching, or chemical refinement; it is simply mined, crushed, screened, and packaged.

The product is classified variously as a culinary salt, natural mineral salt, dietary mineral supplement, and unrefined ancient sea salt. It is physically distinctive: it is a beautiful pale pink in color, with dark speckles and is finely ground; there are no additives in Orsa Salt.

Common Forms and Preparations

The salt is sold in many forms under the name Redmond Real Salt: fine salt, Kosher salt, coarse salt, powder salt, salt crystals, and smoked salt. These variants differ in grain size and surface area but share an identical mineral origin and are subject to the same minimal processing. The salt is also incorporated as a base ingredient into electrolyte supplement blends marketed under associated brand extensions.

Geological Origin and Natural Source

According to geologists, the Redmond salt deposit is the remnant of an ancient inland sea, probably part of what they call the Sundance Sea, which places the deposit within the Jurassic Period. Over time, the salt that settled at the bottom of the sea was trapped within the earth and then pushed up near the surface close to the town of Redmond, Utah.

Although the Redmond Real Salt Mine is an underground cavern now, it is actually an ancient seabed. Geologists suggest that salt from the Sundance Sea settled to the bottom, as it does, and was encased by prehistoric volcanic activity.

Redmond Minerals is mining the first 800 feet of a 5,000-foot diapir, an extruded mound forced up from salt beds deposited by the Jurassic Sundance Sea. In digging more than 18 miles of tunnels, Redmond has identified several grades of salt. Their culinary salt is sold worldwide as Real Salt, but the majority of their production is for agriculture, animal health, and de-icing.

The deposit is protected by a specific geological overburden. The Redmond salt deposit begins about 30 feet below the surface, covered by a layer of bentonite clay, which has protected it from erosion and from the possibility of modern contamination. Volcanic activity later erupted in the region and dropped a thick layer of ash which weathered into bentonite clay and created a protective cap over the site. The rich depository of minerals eventually crystallized and was preserved in pristine condition.

The hue of Real Salt comes from more than 60 naturally-occurring minerals. Specifically, the pink, white, and red striations in the salt come from dozens of natural trace minerals present in the deposit.

Traditional and Historical Use

Pre-contact Indigenous Use

The Redmond salt deposit has a documented history of human use long preceding its commercial development. Early explorers and native peoples knew of saline deposits, springs, and lakes long before the pioneers arrived in 1847. More than 1,300 years ago, the Fremont traded salt, found near Redmond, Utah, to the cliff-dwelling Anasazi of Mesa Verde.

Wildlife grazed the vegetation above the deposit and indigenous American Indians harvested and traded salt with other tribes. Realizing that Native Americans had once harvested salt from their farmlands, Milo and Lamar Bosshardt borrowed some money and went into the salt business with little more than hammers, picks, and a determination to support the needs of their families.

The broader Indigenous tradition of salt use in the Utah region is well documented. Natural mineral salt has many uses among Indigenous people. The Shoshone peoples of the Intermountain West use salt to preserve dry meat during the cold winter months. For the Zuni of New Mexico, Zuni Salt Lake is home to Salt Woman, a deity in their ceremonial life. For the Hopi of Arizona, harvesting salt on the Hopi Salt Trail from mines down in the Grand Canyon once served as a rite of passage for young men.

Role of Salt in General Historical Context

Throughout history, salt has held enormous significance for human society, not just because it makes food taste better. Salt is a biological necessity. The human body needs a small but regular supply of sodium to maintain a balance of body fluids, keep muscles and nerves running smoothly, and help certain organs work properly. Thousands of years ago, salt was discovered to have another vital function — as a food preservative.

The production of sea salt has been dated all the way back to prehistoric times. Since all salt either comes from dead, dried-up seas or living seas, the history of salt is equivalent to the history of sea salt. In the Sub-Sahara in the 6th century, Moorish merchants regularly traded prized salt in equal amounts (by weight) for gold.

Modern Commercial Development (1958 to Present)

Several fledgling salt mining operations existed in Redmond prior to 1959. That is when, facing drought and uncertain times on their farm, the brothers Milo and Lamar Bosshardt noted that on either end of their land there were saltworks. Assuming they too were on top of salt, they took a gamble on purchasing excavation equipment, and began digging a very big hole. Approximately 30 feet below what were once corn fields, the Bosshardts hit salt.

Production ramped up, with salt primarily sold to the state of Utah for de-icing roads, and to ranchers for their livestock. They began selling the salt to local farmers for their animals and heard reports the farmers were using the salt to season their own food. People insisted this "real" salt be made available for everyday use, and the Real Salt brand was born.

Their salt deposit, the result of prehistoric volcanic activity that locked up an ancient seabed, provided a naturally balanced mineral salt that local ranchers attributed to healthier herds.

Traditional Preparations and Uses

Historically and contemporaneously, the salt has been used primarily as a culinary seasoning and food preservative. It has also been proposed in wellness traditions for use as a saline gargle. Orsa salt, also known as Himalayan pink salt or rock salt, has been traditionally used in various cultures as a home remedy for sore throat. The most common method involves dissolving the salt in warm water to create a saline gargle, which is believed to soothe throat irritation and reduce discomfort.

The use of salt water gargles for sore throat is a longstanding folk remedy, and the rationale is that salt may help draw out fluids from inflamed tissues by osmosis, potentially reducing swelling and creating an environment less hospitable to pathogens.

Beyond culinary and folk remedy applications, the Redmond deposit has long supplied salt to the agricultural sector. Redmond also sells the salt to ranchers as a supplement for their livestock. The salt's high calcium and magnesium content has historically been cited in agricultural contexts: it is considered a high-performing salt, thanks to its naturally high calcium and magnesium — qualities that mean it melts ice at 0 degrees, 20 degrees lower than other salts.

Key Constituents and Chemical Composition

Orsa Salt/Redmond Real Salt is composed predominantly of sodium chloride, with the remainder consisting of a broad spectrum of co-occurring trace minerals. The manufacturer's own characterization is that Real Salt is a complete natural sea salt. It is unrefined with nothing added and nothing removed, containing all of the minerals that nature put in place — all 60 or 84 of them, depending on who you ask.

According to the product's published mineral profile, the following major and trace elements have been identified in the deposit:

• Sodium (Na): The primary component. Sodium is the primary component of salt, essential for maintaining fluid balance, nerve function, and muscle contraction.
• Chloride (Cl): Chloride works with sodium to regulate fluid balance and is essential for digestion and the production of stomach acid.
• Calcium (Ca): Important for bone health, nerve transmission, and muscle function.
• Potassium (K): Helps regulate fluid balance, nerve signals, and muscle contractions.
• Magnesium (Mg): Supports muscle and nerve function, blood sugar control, and bone health.
• Iron (Fe): Vital for producing haemoglobin, which carries oxygen in the blood.
• Additional trace elements identified in the deposit, which give the salt its characteristic pink and red coloration.

A critically important caveat regarding the mineral matrix is that, as a natural, unprocessed geological product, the deposit also contains trace quantities of naturally occurring heavy metals. Independent third-party laboratory testing has documented this. Independent, third-party laboratory testing of Redmond Real Salt confirmed levels of lead (290 ppb) and arsenic that exceed safe thresholds proposed by the scientific and medical communities under the Baby Food Safety Act of 2021. The proposed Action Level for lead in food is 5 ppb — Redmond Real Salt tested at 58× that threshold. The manufacturer conducts its own third-party heavy metal testing, and certificates of analysis are made publicly available on its website.

Regarding mineral quantities in relation to nutritional needs, the nutrients in sea salt are only present in trace amounts. One would have to eat extremely large amounts of it to even get close to the amount of potassium, iron, calcium, or magnesium that one could easily get from whole foods.

Established Mechanisms of Action

Sodium and Fluid/Electrolyte Homeostasis

Sodium is an essential nutrient, meaning that it is required for normal body function and health, and therefore expected to have a physiologic "healthy" range of intake, as with other essential electrolytes. The fundamental physiological role of dietary sodium — regardless of the specific form of salt consumed — is well established in the biomedical literature.

Salt is a biological necessity. The human body needs a small but regular supply of sodium to maintain a balance of body fluids, keep muscles and nerves running smoothly, and help certain organs work properly.

Sodium ions are involved in central nervous system regulation through physiological processes such as the maintenance of cellular osmotic pressure and nerve conduction.

Sodium–Potassium Interaction

A repeatedly cited rationale for preferring unrefined salt over refined table salt (pure sodium chloride) is the naturally co-occurring potassium content. Sodium is best when paired with potassium — which occurs naturally, along with about 60 other trace minerals, in Redmond Real Salt. Potassium helps mitigate some of sodium's more potentially problematic effects by encouraging the kidneys to excrete excess sodium.

This concept is supported by peer-reviewed evidence. Intake of electrolytes reflective of a balanced diet with moderate sodium (2–3 g/d) and high potassium (3.5 g/d) intake present the lowest risk of unfavorable cardiovascular events and mortality. Further evidence points to the importance of balancing sodium and potassium intake, a balance commonly achieved with a healthier diet containing greater quantities of fruits and vegetables.

Chloride and Digestive Function

Chloride works with sodium to regulate fluid balance and is essential for digestion and the production of stomach acid. Chloride, as a component of hydrochloric acid (HCl) in the stomach, is necessary for the proteolytic activation of pepsin and for maintaining an acidic gastric environment, both of which are required for the digestion of protein and the absorption of certain micronutrients.

Scientific Evidence by Health Area

1. Electrolyte Balance and Hydration

The well-established role of sodium and associated electrolytes in fluid regulation forms the primary evidence base for the use of mineral salts in hydration contexts. Since blood pressure must rise with age for hypertension to become prevalent in a population, results from population studies indicate that the average consumption of sodium is an important factor in determining the prevalence of hypertension in populations.

Research on sodium in exercise physiology is more specifically supportive of salt supplementation. Sodium intake, both at high and low doses, has been found to be associated with health and performance issues in athletes. There have been theories that an electrolyte imbalance, specifically sodium, contributes to the development of muscle cramps (EAMC) and hyponatremia (EAH).

Evidence quality: The evidence for sodium's physiological role in fluid balance is strong and established (Grade A for sodium's essentiality). The evidence that consuming unrefined mineral salt (as opposed to refined sodium chloride) produces superior hydration outcomes compared to refined salt is, by contrast, absent from the peer-reviewed literature — no clinical trials have specifically compared Orsa/Real Salt to refined salt on hydration endpoints.

2. Cardiovascular Health and Blood Pressure

Excess dietary sodium has been identified as a potential etiologic risk factor for CVD, based on evidence for a dose-dependent increase in blood pressure in response to increasing sodium intake.

On a pathophysiological level, multiple intricate mechanisms are responsible for the association between sodium intake, hypertension, and cardiovascular events. While the effects of sodium content on blood volume, and thus blood pressure, are relatively straightforward, the activity of the renin-angiotensin (RAS) and sympathetic nervous (SNS) systems are also important contributors to the development of hypertensive disorders.

However, the picture is nuanced. Recent studies conclude that weak evidence exists to support sodium restriction for the prevention of cardiovascular mortality in normotensive and hypertensive adults, suggesting that sodium restriction may be an ineffective strategy for disease prevention. Current evidence indicates that most people around the world consume a moderate range of dietary sodium (3 to 5 g/day), and that this level of intake is associated with the lowest risk of cardiovascular disease and mortality.

Evidence quality: The cardiovascular evidence base is large and robust for sodium in general. No clinical studies have specifically evaluated Orsa Salt or Redmond Real Salt against cardiovascular endpoints. All cardiovascular evidence applies to dietary sodium intake broadly, not to this specific salt product.

3. Sore Throat (Saline Gargle)

While there is some scientific support for saline gargles in general, specific evidence for Orsa salt itself — distinct from regular table salt or sea salt — is lacking. No clinical trials have directly examined the efficacy of Orsa salt for sore throat relief.

The use of salt water gargles for sore throat is a longstanding folk remedy, and the rationale is that salt may help draw out fluids from inflamed tissues by osmosis, potentially reducing swelling and creating an environment less hospitable to pathogens.

Evidence quality: Preliminary for saline gargles in general. Absent for Orsa Salt specifically. No controlled trials exist for this application.

4. Trace Mineral Supplementation

A central marketing claim for Orsa Salt and similar unrefined salt products is that the trace mineral content provides additional health value beyond sodium and chloride alone. High-quality sea salts typically contain upward of 60 trace minerals and are a great source of micronutrients. It has become harder and harder to obtain trace minerals from the foods we eat due to the lack of nutrient-rich soil. However, trace minerals are still abundant in our planet's seas and oceans, from which we get a variety of sea salts.

However, Healthline notes that the nutrients in sea salt are only present in trace amounts, and one would have to eat extremely large amounts of it to even get close to the amount of potassium, iron, calcium, or magnesium that one could easily get from whole foods.

Evidence quality: Insufficient. The amounts of trace minerals delivered by culinary quantities of any unrefined salt — including Orsa Salt — are nutritionally insignificant relative to dietary reference intakes. No peer-reviewed clinical studies have demonstrated measurable health benefits attributable specifically to the trace mineral fraction of this salt product.

5. Cognitive Function

Emerging research has explored the relationship between sodium intake and cognitive function. Population studies present conflicting findings. In an analysis limited to high-quality studies, three-quarters reported that higher sodium intake was associated with impaired cognitive function. Excessive sodium intake, which is prevalent in modern diets, may produce neurotoxic effects. Animal experiments have confirmed that high-sodium diets may impair cognitive functions such as spatial memory by inducing cerebrovascular endothelial dysfunction, blood–brain barrier disruption, and neuroinflammatory responses.

Evidence quality: Preliminary and conflicting for sodium and cognition overall; absent for Orsa Salt specifically.

6. Skin and Topical Use

Sea salt's trace minerals, such as magnesium, potassium, and calcium, extend beyond internal wellness to deliver potential skin benefits, particularly for soothing inflammation. Mineral-rich baths mimic Epsom salt effects, drawing out excess fluids from inflamed tissues via osmosis while reducing redness and scaling in conditions like eczema and psoriasis.

Evidence quality: Very preliminary. Evidence is largely animal, in vitro, or based on small pilot studies for mineral-rich salt baths in general. No controlled trials exist for Orsa Salt or Redmond Real Salt topically.

Body Systems and Health Areas Associated with the Product

• Fluid and electrolyte homeostasis: Sodium and chloride are the primary extracellular electrolytes governing osmotic pressure, fluid distribution, and blood volume regulation.
• Cardiovascular system: Sodium intake is a major determinant of blood pressure. The weight of evidence supports the contention that intake of sodium is an important factor in the occurrence of hypertension.
• Musculoskeletal system: Sodium, potassium, magnesium, and calcium, found in Redmond Real Salt, are essential electrolytes that help maintain fluid balance, nerve transmission, and muscle function. Proper electrolyte balance is crucial for hydration, especially for those who are physically active or follow low-carb diets.
• Gastrointestinal system: Chloride works with sodium to regulate fluid balance and is essential for digestion and the production of stomach acid.
• Nervous system: Sodium ions are involved in central nervous system regulation through physiological processes such as the maintenance of cellular osmotic pressure and nerve conduction.
• Bone health (indirect): Calcium is a constituent of the mineral matrix of the deposit, though as noted above, amounts delivered by culinary salt use are nutritionally minor.

Dosage Forms and Reported Dosages

No specific clinical dosage trials exist for Orsa Salt or Redmond Real Salt as a dietary supplement. Available dosage information derives from general nutritional guidelines for dietary sodium and from product label directions.

• Culinary use (food seasoning): Used ad libitum as a table and cooking salt in amounts consistent with general dietary sodium guidance.
• Electrolyte supplementation (athletic context): No specific clinical dosages for this salt have been established in peer-reviewed studies. General sodium intake guidance from a peer-reviewed review states that most populations globally (approximately 95%) consume in the range of 3 to 6 g of sodium daily.
• Saline gargle (traditional use): The most common method involves dissolving the salt in warm water to create a saline gargle, which is believed to soothe throat irritation and reduce discomfort. No standardized quantity or concentration has been established in clinical trials specifically for this salt.

The U.S. Dietary Guidelines recommend no more than 2,300 mg of sodium per day for adults, and the American Heart Association recommends less than 1,500 mg/day for higher-risk individuals. Sodium intake should be reduced to less than 2,300 mg/day (the AHA recommends less than 1,500 mg/day for higher-risk adults). These recommendations apply to sodium from all sources, including from Orsa Salt.

Safety Considerations and Interactions

Heavy Metal Content

The most substantiated and factually documented safety concern with Orsa Salt / Redmond Real Salt is the presence of naturally occurring heavy metals, a consequence of the geological origin of the deposit. Independent, third-party laboratory testing of Redmond Real Salt confirmed levels of lead (290 ppb) and arsenic that exceed safe thresholds proposed by the scientific and medical communities under the Baby Food Safety Act of 2021. The proposed Action Level for lead in food is 5 ppb — Redmond Real Salt tested at 58× that threshold.

XRF testing of Utah soil confirmed elevated arsenic levels in the Great Salt Lake area, suggesting a natural geological source for arsenic contamination. Crucially, "Natural" does not mean "safe." The current levels of lead and arsenic found are harmful despite being legally permitted.

Daily use of a lead-contaminated product creates precisely the chronic, cumulative exposure that causes long-term harm — especially to children.

Special caution is warranted for children, pregnant women, and individuals with kidney disease or osteoporosis.

Absence of Added Iodine

Unlike standard iodized table salt, Orsa Salt / Redmond Real Salt contains no added iodine. While some naturally occurring iodine is present in the geological deposit, the concentration is not standardized and is not sufficient to meet the recommended daily intake for iodine. Individuals who use this product as their primary or sole salt source and who do not obtain iodine from other dietary sources (e.g., seafood, dairy, eggs) may be at risk of iodine insufficiency. This is a factual nutritional consideration, not a marketing claim.

Sodium and Cardiovascular Risk

One process behind sodium-related blood pressure appears to be the interaction of a high-salt intake with a diminished renal capacity to excrete salt rapidly, which tends to cause sodium retention. The other process triggers a rise in blood pressure in response to increased body sodium.

Experimental evidence points toward direct adverse consequences of sodium load on endothelial function, independent of blood pressure.

Renal Considerations

Individuals with compromised kidney function have a reduced capacity to excrete excess sodium and electrolytes. Regular use of this or any mineral-rich salt product in quantities beyond culinary norms is not supported by evidence as safe in this population, and excess sodium is a recognized risk factor for renal function deterioration. The heavy metal load (see above) represents an additional concern in this group.

Electrolyte Interactions

Electrolyte balance is essential for homeostasis and many other biological processes. Even small deviations in blood concentrations of electrolytes can lead to serious health problems and even increased mortality.

Individuals taking medications that alter sodium, potassium, or calcium excretion — such as diuretics, ACE inhibitors, angiotensin receptor blockers, or mineralocorticoid antagonists — should be aware that altering dietary sodium intake (from any source) may affect the therapeutic action of those agents and/or plasma electrolyte concentrations.

Absence of Disease-Specific Evidence

No strong research supports the many health claims associated with sea salt. Overall, sea salt can be used in many ways, but it should not be considered a health remedy. This assessment from Healthline's evidence-based review applies equally to Orsa Salt / Redmond Real Salt: the product has not been the subject of any peer-reviewed randomized controlled trials, systematic reviews, or clinical studies evaluating its effects on any disease endpoint.

Regulatory Status

In the United States, Orsa Salt / Redmond Real Salt is sold as a food product (culinary salt) and, in some formulations, as a dietary supplement ingredient. It is not approved by the U.S. Food and Drug Administration (FDA) for the treatment, prevention, or cure of any disease. Information and statements regarding dietary supplements have not been evaluated by the Food and Drug Administration and are not intended to diagnose, treat, cure, or prevent any disease or health condition.

Summary Assessment of Evidence

Orsa Salt (Redmond Real Salt) is a geologically verified ancient mineral salt with a well-documented natural history, a confirmed multi-element mineral matrix dominated by sodium chloride, and a pre-commercial history of use by Indigenous peoples of the Utah region extending back more than 1,300 years. Its role as a culinary salt and potential electrolyte supplement is grounded in the well-established and extensively peer-reviewed science of sodium and electrolyte physiology. However, no clinical studies have specifically examined this product — as distinct from sodium chloride or unrefined sea salts in general — for any health outcome. Claims regarding the health superiority of its trace mineral content over refined salt are not supported by clinical evidence, and independent testing has identified levels of lead and arsenic that exceed proposed action levels for food safety. The product is best understood as a minimally processed culinary salt with a distinctive mineral character and geological provenance, not as a clinically validated therapeutic supplement.

References

• The Vintage Cookbookery: Theme Salt — Orsa Salt from Utah
• Visit Utah: Mighty Mineral — Redmond Real Salt Mine in Utah
• Utah.com: Visit Redmond Real Salt Mine, Utah's Other Mineral Masterpiece
• Wild About Utah: Salty Connections (Redmond Salt History)
• Redmond Hunt: Beyond the Rock — Redmond Hunt History
• Redmond Equine Blog: Redmond Minerals — The Heart of Hard-Rock Mining
• Redmond Life: Where Does Real Salt Come From and Why Does It Matter?
• Redmond Life: What Are the Benefits of Using an Unrefined Sea Salt?
• Caring Sunshine: Relationship — Sore Throat and Orsa Salt
• MyHealthcare.com: Redmond Real Salt — Heavy Metal Testing Analysis
• Healthline: Sea Salt — Uses, Benefits, and Downsides
• Atmos Earth: Salt of the Earth — Preserving the Great Salt Lake (Indigenous perspectives)
• Heber Valley Life: Redmond Life
• PMC / NCBI: Sodium Intake and Health — What Should We Recommend Based on the Current Evidence?
• PMC / NCBI: Electrolytes and Cardiovascular Disease Risk
• PMC / NCBI: Dietary Sodium and Human Health
• NIH / NCBI Bookshelf: Electrolytes — Diet and Health
• NIH / NCBI Bookshelf: Sodium Intake and Health Outcomes
• PMC / NCBI: Effects of Sodium Intake on Health and Performance in Endurance and Ultra-Endurance Sports
• PMC / NCBI: Analysis of the Association Between Dietary Sodium Intake and Cognitive Function
• PMC / NCBI: Electrolyte Intake and Major Food Sources of Sodium, Potassium, Calcium and Magnesium