Table salt is usually only found in processed foods because they do not come from natural sea sources like sea grass or seaweed. When we use sea salt to cook our food or even sprinkle it on our salads and vegetables, what we are actually doing is buying salt that has been refined from seawater, a process called "refining".
While they can look different on the molecular scale, table salt and seawater salt are both basically just sodium chloride. While seaweed does contain some of the same minerals, such as calcium and potassium, it's still made up mostly of salt chloride. These two minerals are just too dense to be dissolved by normal water molecules, so it's necessary to "refine" them.
Although sea salt is typically cheaper than table salt, it's also not as hydrating as table salt, making it very inefficient as a primary food source. In order to become more hydrating, you'll need to add extra minerals to table salt and there are no such added minerals in sea salts.
Sea salt contains trace amounts of magnesium and calcium. It's possible for seawater to contain more than that, but the amount of these minerals in seawater is small compared to what can be found in seagrass, seaweed, and other natural sea sources. Most seafood will contain less than half a milligram of magnesium and calcium.
There's also little difference in the composition of sea grass, seaweed, and other natural sea sources when compared to table salt. In fact, some sea grass and seaweed contain nearly double the magnesium and calcium content of table salt. So, while it's possible for seagrass and seaweed to contain more minerals than table salt, sea grass and seaweed don't have as much magnesium and calcium, which make it less hydrating and are therefore more expensive.
When you buy sea grass, look at the labels. Most sea salts do have a higher percentage of sodium, but it may not be in the same proportion as table salt. Sea grass and seaweed have about twice as much sodium as table salt, but half as much magnesium and calcium and potassium.
Sea salt tends to be less expensive than table salt, but most sea salts contain more sodium than table salt. This means that you'll have to pay more for sea salts that are not as hydrating as you would with table salt.
So when choosing sea salts, look closely at the label. The more hydrating the salt, the less expensive it will be. But don't get tempted by the cheap seagrass and seaweed salts that are advertised everywhere.
Sea salt has about twice as much magnesium and calcium as table salt, but half as much potassium and sodium. Therefore, while you might find that seagrass and seaweed are expensive, they're more expensive than table salt. So, while you might save some money by buying sea grass or seaweed, you might end up spending more money on sea salts that aren't as hydrating.
Sea grass and seaweed are a good alternative if you're not sure of how much sodium is in your diet. If you know how much sodium you're consuming, you might consider adding sea grass or seaweed to the salt in your dishes instead of using table salt.
If you're concerned that your food contains too much sodium, consider adding sea grass or seaweed to your diet. Sea grass contains more than just salt, however, it also includes zinc and trace minerals.
The benefits of sea grass and seaweed have long been recognized by many people. Studies show that sea grass and seaweed help with weight loss and have health benefits like improving skin tone and blood pressure.