Thyroid Disease and Weight
The relationship between thyroid disease, body weight and metabolism is complex to say the least. Thyroid hormones help the body use energy, stay warm and keep the brain, heart, muscles and other organs working properly.
Hypothyroidism (underactive thyroid) is a condition in which the thyroid gland doesn’t produce enough of certain important hormones. There are many symptoms of hypothyroidism including weight gain, fatigue, dry skin, brain fog and others (see more symptoms).
Because of their effect on the body’s energy use, thyroid hormones influence metabolism. Individuals with low thyroid levels (hypothyroidism) have been found to have slower metabolisms which can in turn cause weight gain. One of the earliest tests used to check thyroid status was measuring a person’s metabolism. Today, there are simple blood tests that can be done, however with new technology, testing a person’s resting metabolism can be done in 10 minutes and doesn’t involve needles! Furthermore, it may be covered by some insurance plans. (Read more about metabolism testing at Valley Weight Loss Clinic).
The blood tests that are used to measure thyroid function are TSH, T4, T3 and Free T4. Having this full thyroid panel along with a physical exam, symptom review and metabolism test is helpful for physicians when prescribing the various Thyroid medications. Treatment medications include Levothyroid, Cytomel, Nature Throid or Armor Throid. Which medication is best is determined by a physican. Regular lab work is often required to make certain that the replacement levels provide by the medications is therapeutic.
The best time to take Thyroid medication is 30 minutes prior to eating. If instructed to take it twice daily, the second dose should be timed approximately 1-2 hours after a meal and 30 minutes prior to eating, preferably no later than 2 pm. Being consistent with thyroid medication times is also important. Ask your provider for other recommendations if you struggle with timing your medication. Don’t stop taking your thyroid medication without first speaking with your physician, most patients need thyroid medication for life.