Iodine, to start with, is crucial for the thyroid gland. This gland needs it to produce the hormones that regulate your body's metabolism and energy.
If you are deficient in this mineral, of course your thyroid is going to suffer and your whole body will start experiencing different symptoms depending on how compromised the thyroid is.
One of the common causes of hypothyroidism is iodine deficiency but, this is not the only cause, as discussed in the website. That being said, it is worthwhile to investigate if your body is low in this mineral and if it is a supplement can help a lot. I know it first hand.
Now, after you start replenishing your iodine levels you may find that you need less and less supplementation. It has happened to me.
Also, if you add to your diet foods such as algae, you may need less supplementation since they are rich in iodine. For example, you could add seaweeds to your salads and soups to ensure you get this key element in food form.
How do you know that your thyroid is getting better after taking these steps?
Well, you'll notice changes. I noticed that my hair stopped falling out like crazy for instance. You know how you feel so you will be able to discern if it is working for you.
Another way is by taking your basal body temperature in the morning for a few days. If your BBT starts to reach normal levels, between 97.8 and 98.2 is considered normal, then you are on the right track. Complement this test with laboratory tests to be sure.
Again, remember that this might be only part of the equation and that there could be other things that need to be considered such as auto-immunity, other hormonal imbalances, diet and lifestyle. Most of the time there is no just One reason why the body develops a symptom.
So, will it cure it? Hard to say; if this is the only cause then it might be all that is needed, and as you replenish your body with it you might be able to stop using the iodine supplement or minimize its dose according to your very own needs.