Green apple tea
Flying low

Salt of the earth

I found this disclaimer on a packet of sea salt: "This salt does not supply Iodide, a necessary nutrient". Two questions arise from this:

Does salt naturally contain iodide? No
Do most people in Hong Kong need extra iodide? No

Iodide is added to most salt that you buy, and has been for a very long time. The warning on the salt I bought is apparently mandatory in the United States. However, for most people with a reasonable diet, there is no need for extra iodine because it occurs naturally in fish, some vegetables and some meat. The bad news is that insufficient iodide consumption by mothers and children is the leading preventable cause of mental retardation (more here).

For people with very poor diets, the iodide added to salt can make a big difference. I read an article some time ago about one very poor part of the world where non-iodized salt was being sold much more cheaply than iodized salt, and this had led to a marked increase in mental retardation in the local population. Unfortunately I can't find the article or remember any more details about it.

The irony here, of course, that people who buy sea salt in a supermarket in the United States (or Hong Kong, or other rich countries) are the ones who get the warning, and are the least likely to need to worry about it.

Comments

Feed You can follow this conversation by subscribing to the comment feed for this post.

Verify your Comment

Previewing your Comment

This is only a preview. Your comment has not yet been posted.

Working...
Your comment could not be posted. Error type:
Your comment has been saved. Comments are moderated and will not appear until approved by the author. Post another comment

The letters and numbers you entered did not match the image. Please try again.

As a final step before posting your comment, enter the letters and numbers you see in the image below. This prevents automated programs from posting comments.

Having trouble reading this image? View an alternate.

Working...

Post a comment

Comments are moderated, and will not appear until the author has approved them.

Your Information

(Name and email address are required. Email address will not be displayed with the comment.)