8

votes

is Iodized Salt a Legitimate Source of Iodine?

Answered on September 12, 2014
Created April 27, 2011 at 4:00 AM

I like Kosher salt for, but I don't have any at the moment. I generally avoid regular table salt because I figure there is more than enough of sodium and iodine in the food I eat anyway, and Kosher salt is easier to control the flavor of salt in food. I know supposedly iodine was added so people living far from the coast would stop getting goiters during the times without reliable refrigeration (seafood was considered the only source of iodine), but this just seems like policy politics and industrial waste cover-up like flouride.

Is regular table salt an actual decent source of iodine, or should i avoid it like plague. Also, after having used kosher salt for years in stead of industrial salt, should I consider iodine supplementation in months that don't have an "R" in them?

And before anyone says I should be using Tibetan time travelling salt from the steppes of Russia or Dead Sea salt from Turkmenistan, I am very far away from a health food store, on a budget, and have limited times to travel. I also prefer using kosher salt over sea salt if I can.

Thanks in advance!

510bdda8988ed0d4b0ec0b738b4edb73

(20888)

on August 11, 2012
at 03:13 PM

I should have been more correct in my terminology. Iodine (I2) can sublime pretty easily, but iodide (particularity KI) won't be going anywhere.

32f5749fa6cf7adbeb0b0b031ba82b46

(41747)

on August 11, 2012
at 10:38 AM

Probably micrograms (µg/mcg) not milligrams (mg).

32f5749fa6cf7adbeb0b0b031ba82b46

(41747)

on August 11, 2012
at 10:37 AM

@miked, iodine does vaporize fairly easily. Our iodine/silica mixture in lab will lose a lot of color if a first-year student forgets to put the cap on when they're finished with it.

510bdda8988ed0d4b0ec0b738b4edb73

(20888)

on August 11, 2012
at 04:16 AM

Sorry, but I'm going to have to call BS on that. Iodine is a very heavy molecule and I know of nothing in the air that it would react with such that you'd not have any iodine after 4 weeks. I can't see any mechanism for there to be any loss of iodine from iodized salt.

C1484e8cfca0cc00f40da25d36f689b8

(374)

on August 11, 2012
at 02:47 AM

Can you point to any information that shows that consuming table salt is significantly worse than sea salt or rock salt. Sea salt and rock salt are both still overwhelmingly NaCl.

5ef574d7893bc816ec52e04139e9bc09

(6097)

on May 05, 2012
at 09:33 PM

^ I love this guy's ideas, but I think he might be autistic.

C4f1a0c70c4e0dea507c2e346c036bbd

on January 31, 2012
at 02:02 PM

Don't they also have a higher percentage of thyroid cancer too?

Ed71ab1c75c6a9bd217a599db0a3e117

(25472)

on October 20, 2011
at 12:56 AM

Maj......it does not matter on PH whether you are right or wrong. Perception of the few dictate the respondants ups of downs......i will continue to kick out data to support my claims in due time. the quiltnis not a short term project.

77877f762c40637911396daa19b53094

(78467)

on October 19, 2011
at 02:32 PM

And sometimes even not that.

77877f762c40637911396daa19b53094

(78467)

on October 19, 2011
at 02:32 PM

Doc is right. Salt can prevent ultimate deficiency only - goiter.

Medium avatar

(5136)

on April 27, 2011
at 02:22 PM

he ate some "Tibetan time travelling salt" and disappeared to the future.

Af1d286f0fd5c3949f59b4edf4d892f5

(18472)

on April 27, 2011
at 02:09 PM

jeez doc. instead of typing dots to meet the 15 character criteria, you could have provided some reasoning for your answer.

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8 Answers

best answer

5
4efc4d54643ac2aa70327d47764e9d07

(120)

on January 31, 2012
at 07:40 AM

According to http://www.lef.org/magazine/mag2009/oct2009_Halt-on-Salt-Sparks-Iodine-Deficiency_01.htm:

"Once the container is exposed to air, iodine content is nearly gone within four weeks after opening (even faster under conditions of high humidity)."

So it's probably not enough to rely solely on salt for iodine.

32f5749fa6cf7adbeb0b0b031ba82b46

(41747)

on August 11, 2012
at 10:37 AM

@miked, iodine does vaporize fairly easily. Our iodine/silica mixture in lab will lose a lot of color if a first-year student forgets to put the cap on when they're finished with it.

510bdda8988ed0d4b0ec0b738b4edb73

(20888)

on August 11, 2012
at 04:16 AM

Sorry, but I'm going to have to call BS on that. Iodine is a very heavy molecule and I know of nothing in the air that it would react with such that you'd not have any iodine after 4 weeks. I can't see any mechanism for there to be any loss of iodine from iodized salt.

510bdda8988ed0d4b0ec0b738b4edb73

(20888)

on August 11, 2012
at 03:13 PM

I should have been more correct in my terminology. Iodine (I2) can sublime pretty easily, but iodide (particularity KI) won't be going anywhere.

3
5740abb0fa033403978dd988b0609dfd

on April 27, 2011
at 05:16 AM

Adding KI (potassium iodide) to table salt was a legitimate public health policy.

As to whether you need/should be using iodized table salt as a source of iodine, you about answer the question yourself. It depends on your diet and your other sources of iodine. If you consume lots of milk and sea food, you probably don't need it. If your only sources of iodine are muscle cuts from the mid-west, you might have a problem.

FWIW, the Japanese, renowned for their health and longevity consume on average about 10x as much iodine as the US RDA.

C4f1a0c70c4e0dea507c2e346c036bbd

on January 31, 2012
at 02:02 PM

Don't they also have a higher percentage of thyroid cancer too?

1
Bb3d1772b28c02da2426e40dfcb533f5

(5381)

on August 11, 2012
at 02:53 AM

China is the first country to be aware of problems caused by spiking there salt supply with iodine. Excess iodine can cause hyperthyroidism. Its like anything, you want a just right amount, not too much or too little.

Theres lots of iodine in seafood, dairy, eggs. Stuff is everywhere. Theres even a decent amount of iodine in meats & veggies (although even eating a nutrient dense paleo diet, you still might be under the RDA officially without roughly one egg per day, youll still get at minimum around 80-100mcgs). One egg has 25-50mcgs. 100grams of carrots has 20mcgs. Meat has between 10mcgs and 25mcgs per 100grams depending on the meat and how it is raised.

Either way if you eat fish, shellfish, dairy or eggs with any kind of regularity youll be making the rda on paleo. Even if you dont, you still be getting close.

So I kinda doubt that youll develop a goiter or go hypo eating paleo. And I doubt that anyone who eats a varied nutritous diet needs iodised salt.

I am currently delibrately restricting iodine, because my thyroid is overactive ATM. I eat meat, veg, fruit and nuts, and i am still getting 80-100mcgs per day. If I added in one egg and a bit of bacon, or one fish meal a week, or the odd bit of aged cheese etc id be at the RDA easy.

FYI, theres 400mcg of iodine per teaspoon of iodised salt. the RDA is 150. Iodised salt is mostly for people who dont eat right.

1
0a9ad4e577fe24a6b8aafa1dd7a50c79

on August 11, 2012
at 02:17 AM

Get an iodine supplement or consume sea vegetables (seaweed) regularly. Table salt is a poison. Sea salt and rock salt is how humans were meant to consume salt. Sea salt and rock salt is a conglomeration of various chloride minerals, unlike table salt which is pretty much just a chemical.

C1484e8cfca0cc00f40da25d36f689b8

(374)

on August 11, 2012
at 02:47 AM

Can you point to any information that shows that consuming table salt is significantly worse than sea salt or rock salt. Sea salt and rock salt are both still overwhelmingly NaCl.

0
F3aa5768e6d3f0886ea44b5800476e4d

on June 08, 2013
at 10:09 PM

i live in rio de janeiro and the only sea salt i can find is iodized, only one brand of regular table salt was without any iodine. i eat a paleo diet and get more than enough iodine through my food, which salt should i go for? does the sea salt out do the table salt even though i might be getting to much iodine?

0
C513b977580930f848dd3343df6082df

on August 11, 2012
at 01:34 AM

Try Lugols solution or Isodora first and perhaps a GOOD quality Kelp tablet 2nd after checking to see about arsneic levels. I purchase kep tabs from Puritan pride which have a 150mg of iodine per tablet. I take (2) a day. Dan

32f5749fa6cf7adbeb0b0b031ba82b46

(41747)

on August 11, 2012
at 10:38 AM

Probably micrograms (µg/mcg) not milligrams (mg).

0
5e36f73c3f95eb4ea13a009f4936449f

(8280)

on May 11, 2011
at 10:10 PM

I got kelp tablets for supplementing iodine. My recollection on iodized salt is that it isn't the best for supplementing iodine. However, enough people eat enough items with iodized salt to get enough iodine to NOT suffer from deficiencies (which is why they did it).

-10
Ed71ab1c75c6a9bd217a599db0a3e117

(25472)

on April 27, 2011
at 11:06 AM

Nope.............

Af1d286f0fd5c3949f59b4edf4d892f5

(18472)

on April 27, 2011
at 02:09 PM

jeez doc. instead of typing dots to meet the 15 character criteria, you could have provided some reasoning for your answer.

Medium avatar

(5136)

on April 27, 2011
at 02:22 PM

he ate some "Tibetan time travelling salt" and disappeared to the future.

77877f762c40637911396daa19b53094

(78467)

on October 19, 2011
at 02:32 PM

Doc is right. Salt can prevent ultimate deficiency only - goiter.

77877f762c40637911396daa19b53094

(78467)

on October 19, 2011
at 02:32 PM

And sometimes even not that.

Ed71ab1c75c6a9bd217a599db0a3e117

(25472)

on October 20, 2011
at 12:56 AM

Maj......it does not matter on PH whether you are right or wrong. Perception of the few dictate the respondants ups of downs......i will continue to kick out data to support my claims in due time. the quiltnis not a short term project.

5ef574d7893bc816ec52e04139e9bc09

(6097)

on May 05, 2012
at 09:33 PM

^ I love this guy's ideas, but I think he might be autistic.

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