Your Thyroid. Is it too low? – Part 2

© 2014 Dr. Sharon Norling

Is your doctor just ordering a TSH? You need more.

The thyroid gland produces 2 major hormones, Thyroxine (T4) and Triiodothyronine (T3). These two hormones work inside the cells of the body, primarily influencing the metabolism of the cells. In other words, thyroid hormone helps the cell machinery produce energy. When there is an adequate amount of thyroid hormone, the cell machinery functions normally and the metabolism of the cells (and the body) occurs at a normal level. When there is an inadequate amount of thyroid hormone produced (i.e., hypothyroidism), the metabolism of the cells (and the body) will decline, and the signs and symptoms of hypothyroidism will be present.

The thyroid produces much more T4 (approximately 80%) than T3 (approximately 20%). T3 is much more active than T4 (about 300% more active) and T3 is the thyroid hormone that actually increases the metabolism inside the cells. The majority of T4 is actually converted into T3 inside the cells of the body.

Thyroid Production -> Pituitary Gland (Brain) -> TSH -> Thyroid Gland -> T4 -> T3 -> Effects on Body

Therese Hertoghe, MD, an internationally recognized Belgian endocrinologist, believes that the TSH test is not sensitive enough in identifying a hypothyroid (low thyroid) condition. In Dr.Hertoghe’s experience, the TSH test may only identify 2-5% of the hypothyroid individuals!

Dr. Hertoghe recommends correlating the blood test results with the clinical picture and symptoms in order to secure an accurate diagnosis of hypothyroidism.

It has been my experience that relying solely on the TSH test will result in under-diagnosing many individuals who are suffering from hypothyroidism – up to 30% of the population. The laboratory tests should not be the sole judge of whether there is hypothyroidism present or not. I think all commonly used lab tests for thyroid function leave much to be desired, that they are useful in some but not all cases, and that they are no substitute for a good physician’s knowledge of expert clinical impression of what it may be doing in the case of an individual patient.

Are your thyroid tests “normal” but you are experiencing hair loss, fatigue, depression, cold, irritability, constipation, having difficulty losing weight and experiencing poor memory?

If so call Dr. Norling 818-707-9355 to have a comprehensive thyroid evaluation.

Do you have problems losing weight? Call Dr. Norling for an effective healthy easy weight loss program.

Get ready for summer!

Factors That Impair Converting inactive T4 to active T3

Nutrient Deficiencies:
Chromium
Copper
Iodine
Iron
Selenium
Zinc
Vitamin A
Vitamin B2
Vitamin B6
Vitamin B12

Medications:
Beta Blockers
Birth Control Pills
Estrogen
Lithium
Phenytoin
Steroids
Theophylline

Other:
Aging
Alcohol
Lipoic Acid
Diabetes
Fluoride
Lead
Mercury
Obesity
Pesticides
Radiation
Stress
Surgery

Go Back to: Is Your Thyroid too Low? – Part 1