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How Much Iodine is in Roasted Seaweed Snacks?

Answered on August 19, 2014
Created February 17, 2012 at 5:27 PM

I was wondering if anybody had a fix on how much iodine is contained in those thin sheets of Nori/ Seaweed snacks they sell at Trader Joes and Whole Paycheck?

C56baa1b4f39839c018180bf63226f7d

(3499)

on May 28, 2013
at 05:41 AM

That would be an extremely large sheet.

D74288318247c62923457d39a068e3a7

(116)

on May 28, 2013
at 04:35 AM

This information is misleading. Nori can contain up to 300 mcg of iodine per sheet.

019c50db5bd952961ac2165c8ebfe804

(10)

on May 27, 2013
at 10:33 PM

Japanese get thyroid issues too! Seems they too are only human... #womp http://jcem.endojournals.org/content/78/2/393.abstract

72cf727474b8bf815fdc505e58cadfea

on April 15, 2013
at 06:21 PM

The canola oil is something like 70% of the calories, but that only comes to about 2g of oil. That may be more than you want to ingest, but it's not going to kill anyone.

C56baa1b4f39839c018180bf63226f7d

(3499)

on March 11, 2013
at 08:37 PM

That sounds a lot like the saltine crackers challenge. Don't those things usually paste themselves to the surface of your mouth?

194d8e8140425057fe06202e1e5822a7

(3979)

on March 11, 2013
at 06:13 PM

Actually, it looks like if you eat two packages (which isn't a lot at all) you'll get 100% DV of iodine. That's not bad at all. You'd have to eat 24 of the tiny sheets, not packages. I could do that in 15 seconds.

9b0a4701e373d4dd13831cfb9b13f42d

(1667)

on February 27, 2012
at 11:50 PM

Really? Wow that is a great honor, especially considering all the in shape people on here. I owe it all to the information on this site.

3864f9a2af09b1b447c7963058650a34

(3703)

on February 25, 2012
at 09:00 AM

I'd hate to objectify the um washing machine, but I'd vote them the best abs at paleohacks.  *haaa ahhh*

C56baa1b4f39839c018180bf63226f7d

(3499)

on February 21, 2012
at 05:43 PM

Yeah. Kelp flakes are the best source if you want a natural source. A light dusting meets the RDI.

9b0a4701e373d4dd13831cfb9b13f42d

(1667)

on February 21, 2012
at 05:38 PM

Right on, so basically not the best source.

9b0a4701e373d4dd13831cfb9b13f42d

(1667)

on February 21, 2012
at 05:35 PM

Why thank you Renee, thats my Paleo washing machine :-).

F92e4ca55291c3f3096a3d4d3d854986

(11693)

on February 18, 2012
at 03:13 AM

a tad off-topic, but your photo makes me crazy.

Ce41c230e8c2a4295db31aec3ef4b2ab

(32546)

on February 18, 2012
at 02:34 AM

Good to know, thanks!

5fb654380d04ac372b750ca3faad2e99

(277)

on February 17, 2012
at 10:13 PM

Indeed. The only brand of roasted seaweed I buy now is Seasnax because they just use seaweed, olive oil, and sea salt. They are incredibly expensive for what you get though.

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15 Answers

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6
C56baa1b4f39839c018180bf63226f7d

on February 17, 2012
at 07:43 PM

Here comes the math:

  • RDI for iodine in the adult male: 95mcg.
  • Approximate iodine content of nori: 16mcg/g
  • Mass of a sheet of nori: 3g
  • Snack strips in a sheet of nori: approximately 12.

So you would have to eat about 24 nori snacks to get your RDI of iodine.

9b0a4701e373d4dd13831cfb9b13f42d

(1667)

on February 21, 2012
at 05:38 PM

Right on, so basically not the best source.

C56baa1b4f39839c018180bf63226f7d

(3499)

on February 21, 2012
at 05:43 PM

Yeah. Kelp flakes are the best source if you want a natural source. A light dusting meets the RDI.

194d8e8140425057fe06202e1e5822a7

(3979)

on March 11, 2013
at 06:13 PM

Actually, it looks like if you eat two packages (which isn't a lot at all) you'll get 100% DV of iodine. That's not bad at all. You'd have to eat 24 of the tiny sheets, not packages. I could do that in 15 seconds.

C56baa1b4f39839c018180bf63226f7d

(3499)

on March 11, 2013
at 08:37 PM

That sounds a lot like the saltine crackers challenge. Don't those things usually paste themselves to the surface of your mouth?

D74288318247c62923457d39a068e3a7

(116)

on May 28, 2013
at 04:35 AM

This information is misleading. Nori can contain up to 300 mcg of iodine per sheet.

C56baa1b4f39839c018180bf63226f7d

(3499)

on May 28, 2013
at 05:41 AM

That would be an extremely large sheet.

3
Ce41c230e8c2a4295db31aec3ef4b2ab

(32546)

on February 17, 2012
at 08:33 PM

I'd be more concerned about the canola oil they use...

5fb654380d04ac372b750ca3faad2e99

(277)

on February 17, 2012
at 10:13 PM

Indeed. The only brand of roasted seaweed I buy now is Seasnax because they just use seaweed, olive oil, and sea salt. They are incredibly expensive for what you get though.

Ce41c230e8c2a4295db31aec3ef4b2ab

(32546)

on February 18, 2012
at 02:34 AM

Good to know, thanks!

72cf727474b8bf815fdc505e58cadfea

on April 15, 2013
at 06:21 PM

The canola oil is something like 70% of the calories, but that only comes to about 2g of oil. That may be more than you want to ingest, but it's not going to kill anyone.

2
8949bf87b0e0aefcad10f29975e4fa2b

(8989)

on February 17, 2012
at 06:57 PM

Not much, but they are addictive, aren't they?

1
019c50db5bd952961ac2165c8ebfe804

on May 27, 2013
at 10:03 PM

Who cares if 10 M japanese people survive just fine? Would you say the same abotu sun exposure with blacks in Africa and Whites in Antartica? No? Well...

And again, what Thyroid Patient said is way more accurate and substantiated than these ludicrous claims. Their kids suffer from goiters too.. they have huge side effects from eating too much but like everywhere else, thyroid issues are hard to detect so perhaps thats why its under reported. Besides... I'm not Japanese and dont have their tolerance (whether genetic or environmental).

Gotta be careful with this stuff, I ate a bunch of seaweed and now I'm worried. Sigh.

019c50db5bd952961ac2165c8ebfe804

(10)

on May 27, 2013
at 10:33 PM

Japanese get thyroid issues too! Seems they too are only human... #womp http://jcem.endojournals.org/content/78/2/393.abstract

1
3c95997176380c642c6cae65f3b0ccc2

(10)

on April 15, 2013
at 05:28 PM

Iodine is essential element for immune system in fighting cancers. And it is almost diminished from our foods or replaced with bromide (in breads for example), whichis not good for your health. Bromides and fluorides are to avoid. I am a breast cancer survivor and like to snack on Kirkland's winter harvest seaweed from Costco. Even iodine in iodinized salt is not enough for DV% wee need.

0
1f7faf48a568da4029609a291711547e

on February 20, 2014
at 03:11 PM

Chelated iodine found in seaweed is not the same as potassium iodide used in salt supplementation and Lugol. It does not have the same bioavailbility in the body, longer excretion times, does not peak and appears to be much safer. The safe limit according to the World Health Organisation for iodine is 1100 mcg/day. You would need to eat about 3000 mcg/iodine from seaweed to have the same effect. The issues with iodine tipping your thyroid into overactive are nearly all associated with potassium iodide use and supplementation.

0
Fee4383da308a56a267eed82f0244ef7

on September 16, 2013
at 08:02 PM

@air_hadoken, What I've found doesn't match your figures (?):

  • RDI for iodine in the adult male: 150 mcg (not 95mcg)
  • Per Trader Joes, each 10gram package of Roasted Seaweed = 320 mcg iodine
  • So if you eat the whole package (2 servings), you'll get 213% of your RDI
  • One sheet of Eden's Nori = 2.5 grams and 70% of RDI = 105 mcg
  • Like Dragon Fly, I also don't like the corn or canola oil additive Costco or TJ's uses (vs olive, coconut, avocado oil...)

Per my son's Swedish Physician's endocrinologist, iodine is like vitamin C in that if you take to much, you just pee it out. I'm pretty touchy about all this because my 10 yr old has goiter, which is said to be caused by too little or too much iodine by the nautropathic world but this Sw. Phy endo is adamant that more iodine than you need is harmless. Going for the RDI, and hoping at least that's a good number. Appreciate any loan cries of reason (facts) on this!

0
Fee4383da308a56a267eed82f0244ef7

on September 16, 2013
at 08:02 PM

@air_hadoken, What I've found doesn't match your figures (?):

  • RDI for iodine in the adult male: 150 mcg (not 95mcg)
  • Per Trader Joes, each 10gram package of Roasted Seaweed = 320 mcg iodine
  • So if you eat the whole package (2 servings), you'll get 213% of your RDI
  • One sheet of Eden's Nori = 2.5 grams and 70% of RDI = 105 mcg
  • Like Dragon Fly, I also don't like the corn or canola oil additive Costco or TJ's uses (vs olive, coconut, avocado oil...)

Per my son's Swedish Physician's endocrinologist, iodine is like vitamin C in that if you take to much, you just pee it out. I'm pretty touchy about all this because my 10 yr old has goiter, which is said to be caused by too little or too much iodine by the nautropathic world but this Sw. Phy endo is adamant that more iodine than you need is harmless. Going for the RDI, and hoping at least that's a good number. Appreciate any loan cries of reason (facts) on this!

0
Fee4383da308a56a267eed82f0244ef7

on September 16, 2013
at 08:01 PM

@air_hadoken, What I've found doesn't match your figures (?):

  • RDI for iodine in the adult male: 150 mcg (not 95mcg)
  • Per Trader Joes, each 10gram package of Roasted Seaweed = 320 mcg iodine
  • So if you eat the whole package (2 servings), you'll get 213% of your RDI
  • One sheet of Eden's Nori = 2.5 grams and 70% of RDI = 105 mcg
  • Like Dragon Fly, I also don't like the corn or canola oil additive Costco or TJ's uses (vs olive, coconut, avocado oil...)

Per my son's Swedish Physician's endocrinologist, iodine is like vitamin C in that if you take to much, you just pee it out. I'm pretty touchy about all this because my 10 yr old has goiter, which is said to be caused by too little or too much iodine by the nautropathic world but this Sw. Phy endo is adamant that more iodine than you need is harmless. Going for the RDI, and hoping at least that's a good number. Appreciate any loan cries of reason (facts) on this!

0
Fee4383da308a56a267eed82f0244ef7

on September 13, 2013
at 07:23 PM

air_hadoken, are you using "New Math"?

  • RDI for iodine in the adult male: 150 mcg (not 95mcg)
  • Per Trader Joes, each 10gram package of Roasted Seaweed = 320 mcg iodine
  • So if you eat the whole package (2 servings), you'll get 213% of your RDI
  • One sheet of Eden's Nori = 2.5 grams and 70% of RDI = 105 mcg
  • Like Dragon Fly, I also don't like the corn or canola oil additive Costco or TJ's uses (vs olive or avocado oil)

Per my son's Swedish Physician's endocrinologist, iodine is like vitamin C in that if you take to much, you just pee it out. I'm pretty touchy about all this because my 10 yr old has goiter, which is said to be caused by too little or too much iodine by the nautropathic world but this Sw. Phy endo is adamant that more iodine than you need is harmless. Going for the RDI for now, and would appreciate any good info people have on goiter and iodine!

0
56c28e3654d4dd8a8abdb2c1f525202e

(1762)

on May 28, 2013
at 12:26 AM

Surely the overall effect is positive. They live some 5 years longer than we do.

0
56c28e3654d4dd8a8abdb2c1f525202e

(1762)

on April 15, 2013
at 07:54 PM

100 M Japanese intake milligrams (yes, milligrams) of iodine per day without any apparent overdosing.

0
88fe5ec5c781e6a0b86d258135af517c

on March 11, 2013
at 05:28 PM

I would avoid seaweed foods or snacks, since the iodine content can vary from 300mcg to 10000mcg between plants -- high enough to induce iodine thyroid dysfunction. Even 2000mcg can shut down a thyroid. Physicians even use Lugols (2000mcg iodine) in hospitals to shut down a thyroid storm.

Amiodarone -- a heart drug -- contains 2000mcg iodine and it is well established that 50% of the people who take this med will end up with thyroid damage from the high iodine.

See iodine-induced hypothyroidism and iodine-induced hyperthyroidism.

And contrary to public opinion, people in Japan suffer from eating seaweed too.

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1924637/

0
Ce272219d496d2b5321d5ee7f99a6190

on March 03, 2013
at 12:27 AM

http://www.healthaliciousness.com/articles/natural-foods-high-in-iodine.php

The link above says that 1/4 of an ounce of dried seaweed has 4500 mcg of iodine. I am looking at Kirkland seaweed snacks that I bought at costco. The package states that a 3.4-gram serving size is a fifth of a pack. A quarter of an ounce would be about 8 grams, so if the link is correct, somewhere around half a pack, or 2.5 servings, gives you 4500 mcg of iodine (and 50 calories). These are the Kirkland Signature Roasted Seasoned Seaweed Winter Harvest.

0
5a16403ca7e9a241cb515c97cff17951

on October 08, 2012
at 02:14 AM

The whole9 reported that one sheet has 70% of the iodine daily recommendation

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