Ocean water is a substantial nutritional source of a number of minerals, as shown in the following table. It is hard to get enough of these minerals from natural food sources alone. The amount of sodium in 1 standard shot glass of ocean water is approximately equal to the amount of sodium in 1/4 tsp. of salt. If one were to use ocean water to for 85% of the RDI of sodium per day, they would be supplied 40% of the magnesium.


Minerals in Ocean Water per 1 shot (= 1.5 oz = 42 g = 3 Tbsp.)

%DV
Conc.1 (ppm)
Concentration1(Mol/L)
Amount (mg)
Optimum (mg)
reference
Upper (mg)

Chloride
35%
18980
0.536
797.
2300
2
5300
Sodium
28%
10561
0.459
444.
1600
3
2400
Magnesium
13%
1272
0.0523
53.4
420
2
680
Sulfate (SO4)
3%
2648
0.0276
111.
3250
4
5550
Calcium
1%
400
0.01
16.8
1300
2
2000
Potassium
0%
380
0.00972
16.
4700
2
NA
Bromide
34%
65
0.000814
2.73
8
5
12
Strontium
14%
13
0.00233
0.546
4
6
24
Boron
13%
4.6
0.000426
0.193
1.5
7
13
Fluoride
24%
1.4
0.000074
0.0588
0.25
8
1
Lithium
1%
0.1
0.000015
0.0042
0.7
9
3
Iodine
1%
0.05
0.00000039
0.0021
0.15
2
1.1

%DV: Daily Value, percent of optimum intake
Optimum: Optimum total dietary intake, for adult.
Upper: Upper limit for good health
NA: Not Available



The minerals in ocean water are electrolytes. They easily become ionized and dissolved in water. Electrolytes are eliminated from the human body the fastest of all minerals. They are also the most easily depleted from the soil of all minerals. Soils have been in a process of depletion throughout geologic history and the minerals all go to the ocean. Chloride is needed to produce hydrochloric acid for the digestion and absorption of protein, B vitamins, and other nutrients. Sodium is important for maintaining adequate blood pressure for good circulation; inadequate sodium intake (less than 500 mg/day) has been linked to insulin resistance. Magnesium is a mineral that promotes healing of many conditions; lowers blood pressure, prevents calcification inside the arteries and encourages calcification in the bones, it promotes relaxation, improves sleep, improves cold tolerance, reduces post-traumatic stress, reduces allergies, and it is an essential nutrient for numerous biological functions. There may also be benefits to the consumption of ionic magnesium at the same time as ionic sodium and chloride, in how the body responds to and absorbs it. The nerves use the major electrolytes to conduct electrical impulses. Sulfate is the fourth most abundant anion in the blood and is essential for cell growth and numerous biological functions. It has been implicated inadequate bromine levels are linked to insomnia, and that strontium and boron improve bone health. As summarized by the World Health Organization in 2004, " The U.S. National Academy of Sciences Institute of Medicine has recommended an Adequate Intake of fluoride from all sources as 0.05 mg F/kg body weight/day, defined as the estimated intake that has been shown to reduce the occurrence of dental caries maximally in a population without causing unwanted side effects including moderate dental fluorosis." This translates to 0.25 mg/day for a 50 kg adult. Compare this to 0.1 - 0.7 mg/L in tap water in throughout most of the USA.

People understand by experience that they need a certain amount of salt for hydration in order to survive. The common advice that salt is unhealthy does not tell the whole story. The product known as "sea salt," and all other marketable salt, for that matter, is a harvest of nearly pure sodium chloride (NaCl) crystals from the water, leaving the other minerals in ocean water behind. Whole ocean salt is not widely available in the US, except for industrial grade aquarium salt, because these minerals are important for the fish. The total salinity of the blood of marine fish is equal to that of ocean water, which is about 35 ppt, while human blood is at 9 ppt. Humans need both freshwater and ocean water for hydration. It is not people's taste that is unnatural; it is the NaCl isolate they are consuming that is unnatural. I can personally attest to a dramatic improvement from general anxiety disorder and insomnia when replaced salt and salted foods with ocean water. I also noticed the sound of blood flow in my ears changed from a clock-like pulse to a sound like water flowing through old pipes. I felt relaxed like a fish floating in an aquarium, and my thinking became more rational. The minerals in ocean water have a better mouthfeel and satisfying effect when consumed in ocean water together. It takes time to acclimate to changes in regular intake of ionic magnesium, just like it does for ionic sodium.

Caveman usually lived near the coast where saltwater could be obtained from estuarine creeks or the ocean. Salt was historically made by completely evaporating ocean water in bowls by the batch. All of the dissolved solids were usually retained. This practice was popular but time consuming, thus salt was expensive. The magnesium and other minerals give this salt an extra salty flavor. Magnesium chloride, in whole ocean salt, is very hydroscopic, so except in the most arid climates, the salt would be wet and clumpy and tend to separate out as the mineral brine soaked into other things. This may have been the literal context for Mark 9:50, ESV verse of ancient scripture "Salt is good, but if the salt has lost its saltiness, how will you make it salty again? Have salt in yourselves, and be at peace with one another."

NaCl salt became popular later as it as inexpensively available by mining geologic evaporite deposits. The product known as "sea salt" mostly only supplies sodium and chloride and does not supply substantial amounts of the other minerals alongside of NaCl. During typical mass-production of "sea salt" using evaporation ponds by the sea, the salt forms first as a pure NaCl crystal structure, and the NaCl crystals push magnesium and other mineral ions out of the crystal structure as they form. Magnesium and other minerals in the surrounding brine water do not form crystals because commercial practice does not evaporate the brine to the point where these minerals reach saturation. Most of the remaining mineral brine soaks into the ground or otherwise drains off or before the other minerals form crystals. The NaCl crystals, with a small fraction of the original mineral brine remaining around them, are then mined out with bulldozers and sold as "sea salt," which is no different from "table salt" in formation process or chemical composition. Further, most varieties of sea salt are washed, removing any remaining brine minerals from the otherwise nearly pure NaCl. Essentially all brands of salt available in the US, intended for human consumption, do not have substantial magnesium and other minerals. If people did not use any NaCl salt, and instead used ocean water, there may be better overall health, longevity, and sentience.


References

1​https://web.stanford.edu/group/Urchin/mineral.html
2​https://en.wikipedia.org/wiki/Reference_Daily_Intake#Minerals
3​https://www.heart.org/en/news/2021/02/15/lower-your-sodium-and-blood-pressure-will-follow
4​https://www.nal.usda.gov/sites/default/files/fnic_uploads/water_full_report.pdf
5​https://pubag.nal.usda.gov/download/45755/PDF
6​https://www.peacehealth.org/medical-topics/id/hn-2912004#:~:text=Some%20doctors%20recommend%20only%201,formulas%20geared%20toward%20bone%20health.
7​World Health Organization. Boronexternal link disclaimer. In: Trace elements in human nutrition and health. Geneva, 1996.
8​https://fluoridealert.org/wp-content/uploads/nrc.report.1993.pdf
9 https://www.google.com/search?q=lithium+typical+dietary+intake&rlz=1C1GGGE___US509US509&oq=lithium+typical+dietary+intake&aqs=chrome.0.69i59j33i22i29i30.5423j0j7&sourceid=chrome&ie=UTF-8

Granted, filtered and cleaned Ocean Water may be good for you but I wouldn't advise drinking it straight from the source.

I collect Sea Salts from around the world. Right now I have accumulated 8 different sea salts from different regions. They have different tastes.

As for minerals, yes minerals can be good for you...in small quantities but like everything else, too much is not good for you.
People, in general, tend to over-do supplements.
They hear or read that something is good for you and immediately go out and buy it and start taking it.

A good primary care doctor can do blood work and tell you which supplements you should be taking and how much and how often. Plus, as your levels return to normal, they might reduce or stop supplements.

A healthy human body does not need to go out of the way to get what it needs, if you eat right. Along with a doctor worthy of the money you pay, good health needs no special supplements.

If you are not feeling your best, chances are you are not eating, sleeping or exercising right. Stress depletes your system. Minimize your stress levels whenever possible. When you sleep right, your body focuses on healing itself.
Along with the proper diet, low stress and daily exercise you can 'feel' healthy without supplemental extremes.

I don't need to be a doctor to understand common sense.
Sometimes the vitamins and minerals you take additionally can do more harm than good.

Corporations make money when they convince you to buy their products and this is the reason so many people are convinced they need supplements. Its called "Effective Advertising" and they get rich as you knee-jerk yourself into buying their products.

Food content labeling requires food products to be labeled with dietary info.
Most people don't actually read those labels.
Many foods give you the dietary content your body needs.
When you combine those elements thru your day you will find most foods give you plenty of vitamins & minerals to meet your needs.

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