Can Iodine-restricted Diets Normalise Serum Total Thyroxine (TT4) and Subsequently Improve Clinical Signs in Cats With Hyperthyroidism?
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Abstract
PICO question
In cats with hyperthyroidism, does an iodine-restricted diet normalise the serum TT4 (total thyroxine) levels and reduce the severity of the clinical signs when compared to cats on a normal diet?
Clinical bottom line
Whilst there is some evidence that iodine-restricted diets can help to renormalise serum TT4 in cats with hyperthyroidism, this is not always effective and there is a lack of compelling evidence to suggest this is associated with a resolution of clinical signs in the long-term.
