Metabolism and the thyroid are intricately linked in the body. Thyroid hormone speeds up or slows down the metabolism, according to M. Sara Rosenthal in her book, "The Thyroid Sourcebook." If your thyroid isn't working properly, your metabolism isn't working properly. Many factors go into maintaining proper thyroid function, including diet. Protein and iodine-rich foods provide the thyroid with nutrients it needs, while high-carbohydrate foods increase insulin production, which can be damaging to the thyroid.
Identification
Diet is an important part of healing metabolism and thyroid problems. In Dr. Ridha Arem's, "The Thyroid Solution," he notes a diet high in protein, complex carbohydrates, low in fat and low and simple sugars helps to reset the metabolism and increase thyroid function. Omega-3 fatty acids found in fish and flax are also important, as is removing goitrogens such as soy. Foods high in zinc, such as oysters, pumpkin seeds and sesame seeds, help in the normal production of the thyroid hormone, and antioxidants found in greens, berries and vegetable juices help to prevent the accumulation of free radicals that can slow down the metabolism.
Significance
Although decreased thyroid function may necessitate prescription medication, diet still plays an important role in increasing metabolism and healing the thyroid. In fact, M. Sara Rosenthal, author of "The Thyroid Sourcebook," notes diet plays a "critical role" in thyroid health. The thyroid gland extracts iodine from foods in order to make thyroid hormone. Eating low glycemic foods stabilize blood sugar levels, which is important for both the metabolism and the thyroid. High-fiber foods keep the digestion running smoothly, which also impacts the metabolism.
Function
Eating a diet geared toward resetting the metabolism and the thyroid is important beyond stimulating weight loss. Thyroid issues can lead to other diseases, such as depression and anxiety, according to Arem. He also notes that problems with metabolism and the thyroid may eventually lead to autoimmune disorders, such as Hashimoto's or chronic fatigue. Arem adds that a high-protein, low-sugar diet may also help with lowering cholesterol and blood pressure, which can also prevent damage to the brain and promote overall health.
Time Frame
The length of time that it takes the metabolism or thyroid to improve depends greatly on current health. Usually, at least a month is necessary to see some improvement to the thyroid, according to "The Thyroid Diet" by Mary J. Shomon. It may take even longer, from three months to a year, if you have been suffering from thyroid or metabolism issues for a long time. If symptoms do not improve at all after a month, see your doctor.
Considerations
If you are suffering from symptoms such as dry hair, brittle nails, fatigue and coldness, see your doctor immediately to test your thyroid levels. Medication may be necessary. Consult your doctor if you are dealing with high blood pressure, as increased iodine intake may worsen related symptoms.
References
- "The Thyroid Solution"; Ridha Arem; 2000
- "The Thyroid Sourcebook"; M. Sara Rosenthal; 2008
- "The Thyroid Diet"; Mary J. Shomon; 2004


