House.......I'm with Natty. 6Weeks sounds "about right".
Be sure to supplement with Tyrosine (1 g/day) in the interim to fascilitate total recovery.
There are OHER supps that claim to aid in recovery, but Tyrosine is a must!
Here's a good read for ya
Nutrients and Herbs to Support Thyroid Function
Amino Acids
Amino acids play a major role in supporting thyroid health. It is important when choosing supplements of amino acids that they are in the L configuration, or in the case of phenylalanine the DL configuration. This is the form found in nature and utilised by the human body.
L-tyrosine is a non-essential amino acid that the body synthesises from phenylalanine. Amongst its plethora of functions including the formation of the neurotransmitters, tyrosine is a major component of the thyroid hormones.
People with low thyroid function may well benefit from supplementation of tyrosine. People with depression often have low levels of tyrosine. Depression is linked with a low thyroid function and studies suggest tyrosine supplementation may well be beneficial. See Thyro Complex
L-carnitine is made in the body from the amino acids lysine and methionine. Carnitine plays an important role in the metabolism of energy from fat. In order for carnitine to be utilised fully it requires vitamin C, iron, niacin, B6 and methionine.
DL-phenylalanine is a mixture of the amino acid L-phenylalanine which is converted in the body to L-tyrosine. D-phenylalanine is converted primarily to phenylethylamine which is a mood elevating chemical in the body as well as helping to influence certain chemicals in the brain which relate to the sensation of pain. By taking DL-phenylalanine, levels of tyrosine are increased and hence this can influence levels of thyroid hormones. Several nutrients are required for the conversion of phenylalanine to tyrosine; these are vitamin B6, iron, vitamin B12 and vitamin E.
Minerals and Thyroid Health
There are many minerals essential to the health of the thyroid gland; the most well researched is iodine. Iodine is required to manufacture the thyroid hormones. Seafoods, iodised salt and sea vegetables such as kelp, as well as foods grown in iodine rich soil, are rich sources of iodine. With today’s intensive farming techniques it is thought that trace minerals including iodine have been depleted and so many foods no longer contain substantial amounts of these trace minerals. Iodine has now been added to salt and therefore people eating a large amount of processed foods may be consuming too much iodine. However, people whose diets are low in sources of iodine may well benefit from taking supplements of this mineral to help support optimal thyroid health.
Zinc is another essential mineral for optimising thyroid health. In a study of fourteen healthy people with primarily high or low serum zinc levels, thyroxin levels tended to be lower in those people with lower serum zinc. By supplementing with zinc in those individuals whose serum was low, thyroxin levels increased.
There are many different zinc supplements available today and some are absorbed by the body better than others, one of the best sources being zinc picolinate.
Selenium plays a role in thyroid hormone metabolism. It is now thought that severe selenium deficiency may be a possible cause of goitre.
In relation to thyroid health copper is another mineral which plays an important role in the metabolism of the amino acid tyrosine. Although copper deficiency is uncommon, people taking zinc supplements for more than a few weeks should take copper (unless they have Wilson’s disease) as zinc interferes with copper absorption. The safest way of ensuring balance is to take a good quality multivitamin and mineral supplement.
Manganese is required to transport thyroxin hormone in the cell.
Other Nutrient Co-Factors
Intracellular conversion of T4 to T3 is known to require zinc, selenium, copper and iron. The production of T3 is dependent upon vitamin A.
Stress and Thyroid Function
Stress is known to affect thyroid function. The amino acid tyrosine is necessary for the production of steroid hormones adrenaline and noradrenalin. When the body is under stress more of these hormones are required and tyrosine reserves are depleted, leaving the thyroid hormone pathway under functioning. Stress depletes many of the essential nutrients required for thyroid function – the B vitamins, vitamin C, zinc and selenium especially.
Individuals who are stressed may therefore require additional adrenal support in order to improve their thyroid function. There are many nutrients and herbs, which can help support the adrenal glands.
Liquorice root is one such herb. It contains active flavonoids and glycyrrhizin. Glycyrrhizin has been shown to inhibit the breakdown of cortisol in the body. People with an increased demand on their adrenal glands may well benefit from taking supplements of liquorice.