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24-hour Saliva Cortisol Test and Caffeine?

Discussion in 'Hormones' started by outdamnspot, Jan 19, 2016.

  1. outdamnspot

    outdamnspot Senior Member

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    Just a follow-up question to my previous thread about Cortisol tests ..

    Someone suggested that the best results would be obtained if all supplements etc. were stopped for 2 weeks prior to doing the test. However, that isn't a realistic option for me unfortunately because of severity of my symptoms and the urgency with which I'm trying to get help -- I have an appointment booked for 12 day's time at an integrative medicine clinic and wanted my results ready before then. I feel so awful that hopefully something will be captured, even if it isn't under ideal conditions.

    I've ordered the test, which should be here tomorrow.

    What I was wondering is: if I use caffeine daily (1-2 cups) and therefore presumably have some tolerance to its cortisol-raising effects (I believe it lowers cortisol with daily use), should I consume coffee as normal on the day of testing, or stop it? I wasn't sure if sudden cessation might cause more problems, or if it would just be better to be caffeine/supplement free on the day of the test.

    (FWIW the only other supplement I use is magnesium).
     
  2. PennyIA

    PennyIA Senior Member

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    I did skip my caffeine for the day I took my cortisol test... even though I'm a Pepsi-a-day addict. I saved the test for a day when I could suffer through the resulting headache.
     
  3. Mary

    Mary Senior Member

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    @outdamnspot - I've never heard of someone developing a tolerance to caffeine's cortisol-raising effects, and I've also never heard that it lowers cortisol with daily use. I don't think either of those statements are true (though I could be wrong!)

    As to whether or not to stop caffeine on the day of the test, I think you should call the clinic and ask what they would prefer. I just read some on-line instructions re this test, which advised asking your doctor.
     
  4. CFS_for_19_years

    CFS_for_19_years Hoarder of biscuits

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    Caffeine could interfere with the test results.

    http://www.planetnaturopath.com/functional-pathology-testing/how-to-do-a-saliva-adrenal-test
    You may find more results by googling "cortisol saliva test kit caffeine."
     
  5. outdamnspot

    outdamnspot Senior Member

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    "While caffeine prompts cortisol production, a 2005 study published in the journal Psychosomatic Medicine found that regular coffee drinking increases our tolerance, blunting this effect somewhat. Subjects in this study who were given caffeine after a five-day fast showed cortisol spikes in the morning; an effect which diminished after several days of regular exposure."
     
  6. Mary

    Mary Senior Member

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    That's interesting @outdamnspot - Although it sounds like it was a very short study - they refer to several days exposure. So I don't know what the effect would be long-term. Curious that it was published in the journal of Psychosomatic Medicine! :sluggish:
     
  7. PennyIA

    PennyIA Senior Member

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    I'd also state that even without caffiene the day of the test my cortisol increased dramatically for the whole day long.... per Naturalpathic doctor - this is typical of a patient who has insomnia and hasn't slept for 2 weeks. But, I'm the exception in that I get a good 8-9 hours of deep sleep every night BUT wake up unrefreshed.... unlike a lot of fellow sufferers who have trouble sleeping. I always thought that someday this will have a meaning to prove part of our condition as 'something' isn't happening during my sleep and that 'something' probably contributes to adrenal fatigue, etc.
     

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