Weight gain and hypothyroidism

Question
I am 23 years old. I was diagnosed with Hyperthyroidism in 2004. Then I did the radioactive iodine treatment and got hypothyroidism. A few months after the treatment I gained 35 pounds in 30 days. For the past 2 years, I have done anything and everything to try to loose the weight. I have gone on all sorts of diets, I run 2-3 miles everyday 6 days a week, and have yet to loose 1 pound. I eat healthy and exercise. I feel completely hopeless and out of ways to try to loose the weight. Is there anything you could possibly recommend?

Answer
Dear Jeanette,

Did you try to limit your carbohydrate intake? If not, it does worth trying. There's plenty of anecdotal evidence that this type of diet can help. It'd be better if you could read articles instead of a short answer to your question:

Health Benefits of Low Carb Diets, includes the thyroid condition improvement:
http://dietandbody.com/low_carb/nfblog/?p=37

To check whether or not you really tried all sort of diets:
http://dietandbody.com/article1175.html

Weight Loss and Thyroid:
http://dietandbody.com/article1032.html

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