September 14th 2006 - Salt!
Copyright by Karen S. Vaughan, MSTOM, L.Ac.
Nora Ephron wrote an amusing article in the NY Times recently complaining that salt is no longer on the tables or that lump salt, which she referred to as kosher or sea salt, is out and only sits in lumps on her food.
Sea salt is not the same as kosher salt. Kosher salt is salt in lumps, and is usually refined. Sea salt is unrefined and has more minerals, especially trace minerals in it. It can come in big lumps, as Ephron described, or in small crystals or powder. I am sure that expensive restaurants will use sea salt in large lumps because it seems trendier. Our taste for salt is really a taste for minerals, so just taking in sodium chloride misses the need for a broader spectrum of minerals. In fact if we just use plain sodium chloride, we may overconsume it because we are not getting the other minerals that a salt taste is a proxy for.
Iodine is stripped away when salt is refined then added back in larger quantity. Kosher salt is not iodized. You can also get iodized sea salt which has higher than normal levels of iodine. But we usually don't have a deficiency in iodine from food unless we live inland and only eat local food- how many goiters do you see? Instead iodide is preferentially displaced by chloride (chlorinated water), bromide (white flour) and flouride. So if someone has a low thyroid condition I suggest they get a water filter, use whole grains only and try a different type of toothpaste.
Salt doesn't just sit on food, unless the lumps are too large and it doesn't get a chance to dissolve. Smaller pieces melt more easily, like ice does. That is why Ephron doesn't like the big chunks.
Confirmation of this can be found in Wikipedia:
"Kosher salt gets its name, not because it follows the guidelines for kosher foods as written in the Torah (nearly all salt is kosher, including ordinary table salt), but rather because of its use in making meats kosher, by helping to extract the blood from the meat. Because kosher salt grains are larger than regular table salt grains, when meats are coated in kosher salt the salt does not dissolve readily; the salt remains on the surface of the meat longer, allowing fluids to leach out of the meat"
Everyone doesn't need to avoid salt and in fact some salt is essential which is why our taste is hardwired for it. In fact runners who drink too much don't have enough salt for osmosis and can die of SIADH (see article on SIADH). We need our electrolytes. Only some kinds of high blood pressure are salt sensitive. Avoid it if you get swollen though. I do notice that if I have salted nuts I eat far more than if they are unsalted, so I think salt is somewhat addictive. That even goes for natural salts.
I mostly use sea salt, or Himalayan pink salt. Celtic sea salt is tasty. The red or black Indian salts are a bit strong tasting so I only use them in sauces with strong flavors, not directly on food.
has more types of salts than you can imagine. They have a good health section on salt that talks about the sodium hypothesis of hypertension.
Acupuncture and Herbs by Karen Vaughan, L.Ac in Park Slope and Manhattan.
118 East 37th Street, New York, NY 10016
Brooklyn, NY 11215
Wikipedia Salt: http://en.wikipedia.org/wiki/Salt Salt and Good Health: http://www.saltworks.us/salt_info/si_SaltAndGoodHealth.asp Varieties of salt (commercial site): http://www.saltworks.us/salt_info/si_Gourmet_Reference.asp#BlackSalt