Do you have low thyroid function?


Low thyroid is a common problem and can be linked to fatigue, sluggishness, low mood and a host of other symptoms. If you think yours might be low, try this simple test!


Quick thyroid questionnaire:

Answer yes or no if you have the symptoms from the questions below…

  1. Do you tend to suffer from cold hands and feet?
  2. Have you losing or lost hair from the outer third of the eyebrows?
  3. Are you experiencing thinning and brittle hair?
  4. Are you overweight? (if you have a body mass index (BMI) above 25 you are typically overweight - to work out your BMI: divide your weight in kilograms (kg) by your height in metres (m) then divide the answer by your height again to get your BMI)
  5. do you have unexplainable weight gain?
  6. Do you have a low libido?
  7. Have you suffered from infertility (unable to conceive after 6months of unprotected sex)?
  8. Do you tend to have dry skin similar to eczema?
  9. Do you suffer from excessive tiredness?


If you have said yes to 3 or more, try doing the Broda Barnes Test.


Broda Barnes Test:

The basal temperature test should be done as soon as you wake up and before you get out of bed.  Women menstruating vary in their body temperature varies days 2, 3, 4 and 5 of the cycle and therefore readings shouldn’t be taken that day.

Place a themometor (mercury or digital) under the armpit for 10mins. Note the reading, and do this for a calendar month so the results can be averaged out, since they may vary slightly day by day.

Your temperature under the arm, the normal temperature is: 36.6ºC - 36.8ºC (97.8ºF - 98.2ºF)


If your temperature is below 36.6ºC (97.8ºF) then hypothyroidism should be considered if you have symptoms. If your temperature is above 37.0ºC (98.4ºF), hyperthyroidism is possible if symptoms are present and if there is no other illness present to cause a fever.


What to do if your temperature is not within the normal range?

Explore this with a practitioner or your GP. They may suggest a blood test, below are the optimum ranges therefore it is important that you get the readings back to see where your results lie.


Optimum blood levels:


1.3 – 2.0

Free T-3

3.59 – 6.56


1.54 – 3.53

Free T-4

9.1 – 19.7

T-4 Thyroxine

77.2 – 154.4


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      Samantha Prior

      We are proud to introduce guest blogger Samantha Prior from Nutritionally Balanced. Samantha is a blogger, nutritional therapist, clinical adviser, and technical trainer on food supplements and wellbeing. If you need some nutrition advice contact her for a consultation...