5

votes

Potassium Iodide vs. Kelp for Iodine: Which is better and why?

Asked on April 20, 2016
Created May 04, 2012 at 3:01 PM

What do you use and how much? Do you have any thyroid issues?

28f6ae8f57db1c19130b146c4d5d6b44

on April 17, 2016
at 03:55 PM

On the Island of Okinawa in Japan, people consume about 12.5mg of Iodine on a daily basis.  Keep in mind those in Okinawa have 10X LESS Thyroid Cancer than we do, 75% less Breast Cancer and 70% less Prostate Cancer.  All this from a Population that lives an average of 10 years longer than we do and by all accounts, MUCH healther than us.

I'd say we defer to their wisdom.  Personally, since I started taking 50mg a day of Potassium Iodate by Vitamin Research, (which calculates out to around 24mg of Iodine a day) my back problems, headaches and overall sluggishness has completely disapeared.  At 49, I feel healthier and more full of energy than at 39!

75d65450b6ff0be7b969fb321f1200ac

(2506)

on February 23, 2013
at 06:38 PM

The iodine in iodized salt is rather minimal. With regular consumption you will get enough to avoid developing a goiter. But not enough to fulfill your body's need for iodine.

32be195157f00ad15a933b8bb333dcc4

(379)

on February 23, 2013
at 02:35 PM

What about iodized salt?

7f8bc7ce5c34aae50408d31812c839b0

(2698)

on January 18, 2013
at 07:40 PM

Iodoral 12.5mg tablet - 5mg elemental iodine, 7.5mg KI. Nearly the amount of iodine/iodide in the tyical Japanese diet.

Ebb10603524dd22621c1155dd7ddf106

(19160)

on January 18, 2013
at 02:39 PM

Consider a good sourced kelp. You are going to have a harder time finding potassium iodide for iodine than kelp at supplement levels v. "medicinal".

Ebb10603524dd22621c1155dd7ddf106

(19160)

on January 18, 2013
at 02:37 PM

You should edit to use two asterisks to make **lot** bold. 'Cause yeah, it's **a lot**.

32f5749fa6cf7adbeb0b0b031ba82b46

(41767)

on January 18, 2013
at 01:33 PM

To what anti-nutrients and heavy metals do you refer?

7f8bc7ce5c34aae50408d31812c839b0

(2698)

on January 18, 2013
at 01:09 PM

There I up voted you. I actually agree with your decision. I think seaweed, while good theoretically is very susceptible to contamination and not well tested or regulated.

4517f03b8a94fa57ed57ab60ab694b7d

on January 18, 2013
at 12:49 PM

I am heartbroken over this downvote. Whatever will I do?

Dbd1e8fad5d4b47409d84bd6610020d5

(368)

on May 05, 2012
at 07:12 PM

@primallykosher, 1000 mcg (or micrograms) is the equivalent of 1 mg, or 0.001 g of iodine. You'd have to eat a tonne of kelp to reach that limit, but if supplementing with potassium iodide, that limit is quickly exceeded if one is not paying attention. The Food and Nutrition Board set upper limits at around 1000 mcg [http://www.tulane.edu/~icec/icecfaq.htm], but the recommended dose is between 150mcg-250mcg. But, iodine is necessary for optimal thyroid function. [http://thyroid.about.com/od/newscontroversies/a/toomuchiodine.htm]

C4f1a0c70c4e0dea507c2e346c036bbd

on May 04, 2012
at 09:09 PM

what is 1000 mcg of iodine and how do you know that is the limit?

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4 Answers

2
Dbd1e8fad5d4b47409d84bd6610020d5

(368)

on May 04, 2012
at 03:53 PM

I use Icelandic kelp for my iodine intake - potassium iodide has a -lot- of iodine and should only be used if you are in a severe radiation zone. I have no thyroid issues, but there is a noticeable difference if you are iodine deficient. I would recommend taking 1 225 mcg (iodine)/ 41 mg (kelp) pill every other day to prevent yourself from overdosing.

Most adults can take up to 1000 mcg/day safely, and 900mcg for pregnant women. Overdosing on iodine can shut down your thyroid, so I just like to supplement on the lower side for safety.

C4f1a0c70c4e0dea507c2e346c036bbd

on May 04, 2012
at 09:09 PM

what is 1000 mcg of iodine and how do you know that is the limit?

Dbd1e8fad5d4b47409d84bd6610020d5

(368)

on May 05, 2012
at 07:12 PM

@primallykosher, 1000 mcg (or micrograms) is the equivalent of 1 mg, or 0.001 g of iodine. You'd have to eat a tonne of kelp to reach that limit, but if supplementing with potassium iodide, that limit is quickly exceeded if one is not paying attention. The Food and Nutrition Board set upper limits at around 1000 mcg [http://www.tulane.edu/~icec/icecfaq.htm], but the recommended dose is between 150mcg-250mcg. But, iodine is necessary for optimal thyroid function. [http://thyroid.about.com/od/newscontroversies/a/toomuchiodine.htm]

Ebb10603524dd22621c1155dd7ddf106

(19160)

on January 18, 2013
at 02:37 PM

You should edit to use two asterisks to make **lot** bold. 'Cause yeah, it's **a lot**.

1
E86132d3a1da945f5df0c6f16efacb4e

on October 29, 2013
at 09:55 PM

Please forgive me for sounding rude here but I must call this out. Given that the body will excrete any excess iodine the limitation of 1000mcg isn't accurate. While the US RDA is in the order of 100-250 mcg (depending) that is the minimum required to prevent goiter. It doesn't help one achieve "optimum" health. Most iodine supplements vary in range from 12.5mg to over 100mg and are taken regularly as a supplement. The amount of iodine a person needs is determined not by a standard established over half a century ago but instead by your own body, health, stress, genetics, etc. In fact, people who eat a lot of sea vegetables will naturally consume over 12 mg of iodine a day. So, again recommending a limiting supplementation level for those who do not consume sea vegetables and loads of shellfish isn't practical. As for me, I take Potassium Iodide 50mg does the trick, but you may be different.. However, if the concern is a fully functioning thyroid and body overall you have got to consider selenium, zinc, tyrosine, magnesium, copper, etc. Iodine if found in greatest concentrations in the thyroid, breast tissue, ovaries and testicles (obviously depending on gender).. In fact for women who are very large breasted their concentration of iodine in the breast may exceed (likely) the 50mg of iodine stored in the thyroid. So again, how much is a question that would best be answered by your Dr. based upon the results of an iodine loading test. However, if you are supplementing I wouldn't be overly concerned (unless there are specifically concerning health factors of course), by limitations created by the USRDA or other governmental body. Most of their recommendations are either outdated, were completely inaccurate to begin with or were established to create a MINIMUM threshold. For example, the USRDA for vitamin D is 400iu. Which is enough to prevent rickets. However, your body will manufacturer tens of thousands of IU's a day if you are in the sun so which one's accurate? The gov't or your own body?

0
4147ff909047dad96c488821430a8731

on February 23, 2013
at 02:25 PM

This guest post on the Perfect Health Diet site, suggests that kelp may be sub-optimal due to other things it contains: http://perfecthealthdiet.com/2011/05/iodine-and-hashimotos-thyroiditis-part-2/

In Paul's supplement recs page he recommends potassium iodine pills, although later on in his seaweed section he does recommend some that contain kelp: http://perfecthealthdiet.com/recommended-supplements/

75d65450b6ff0be7b969fb321f1200ac

(2506)

on February 23, 2013
at 06:38 PM

The iodine in iodized salt is rather minimal. With regular consumption you will get enough to avoid developing a goiter. But not enough to fulfill your body's need for iodine.

32be195157f00ad15a933b8bb333dcc4

(379)

on February 23, 2013
at 02:35 PM

What about iodized salt?

0
4517f03b8a94fa57ed57ab60ab694b7d

on January 18, 2013
at 11:10 AM

I am leaning towards potassium iodide, since I don't trust the antinutrients and heavy metals in the seaweed.

4517f03b8a94fa57ed57ab60ab694b7d

on January 18, 2013
at 12:49 PM

I am heartbroken over this downvote. Whatever will I do?

7f8bc7ce5c34aae50408d31812c839b0

(2698)

on January 18, 2013
at 01:09 PM

There I up voted you. I actually agree with your decision. I think seaweed, while good theoretically is very susceptible to contamination and not well tested or regulated.

7f8bc7ce5c34aae50408d31812c839b0

(2698)

on January 18, 2013
at 07:40 PM

Iodoral 12.5mg tablet - 5mg elemental iodine, 7.5mg KI. Nearly the amount of iodine/iodide in the tyical Japanese diet.

32f5749fa6cf7adbeb0b0b031ba82b46

(41767)

on January 18, 2013
at 01:33 PM

To what anti-nutrients and heavy metals do you refer?

Ebb10603524dd22621c1155dd7ddf106

(19160)

on January 18, 2013
at 02:39 PM

Consider a good sourced kelp. You are going to have a harder time finding potassium iodide for iodine than kelp at supplement levels v. "medicinal".

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