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need to cook food for dog due to medical reasons, and one of ingredients is iodized salt. so i had a quick look at this topic. so, as far as i remember:

- different brands have different amount of iodine

- iodine dissipates from opened salt container, with speed of dissipation been dependant on temperature and humidity

- if you cook with iodized salt, most of it iodine disappears (depends on brand. some retain more )

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I had never thought about point 1, and never knew about points 2 and 3.

Growing up in India, iodized salt was the norm. Given that I'm vegetarian, now that I have moved the US, I have continued to use iodized salt for my own cooking. Whatever Morton / Kroger / other grocery store brand is most readily available. I usually keep it stored in an airtight plastic jar but use it for cooking like normal.

Should I be worried about iodine loss during cooking?

depends on amount of salt that you use and your nutritional requirements...

for my dog I add salt after cooking. she won't know the difference

Regardless, on average it tends to work out. The amount of iodine in the salt is regulated by measuring uring samples in a large population.

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