I have had two vitamin D readings, one in Sept last year (60) and one early this month (68). I am taking Vitabiotics brand at the moment but for reasons I don’t yet, they now give me acid reflux (along with other foods and possible some brands ofT4).
If I am suffering acid reflux after taking them, could this be making the vitamin D levels low? Also, more importantly, is this low vitamin D causing poor conversion of T4 to T3?
Thank you for any possible advice on this.
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Sailing14
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What strength are they? Must admit it's not a brand that I rate as they do add many excipients the strongest they do seems to be 3000iu which probably isn't enough anyway and doesn't contain K2.... I'd suggest swapping to a sublingual like Nature Provides
Speaking for myself low vitd doesn’t have any effect on my conversion, my vitd levels rarely go above 20 usually below 12 in the winter, I’m not able to tolerate vitd in any form other than the sun, it has no effect on thyroid levels.
Thank you very much. I am holding out for a thyroid panel test at the GP (two weeks to go) as I have moved it up and down over the last few months prior to this.. I do have T3 and don’t want to add this without knowing my levels at 100 mcg (I have been on this over a year). I have had very helpful advice about my T3 from this forum but I feel I need to know how my levels are on the T4 (by staying on 100 mcg for 8 weeks).
It has been gruelling and a long long time spent being unwell because my GP refused a blood test in August last year so I tried putting T4 up and then down and got in a mess. I have had private tests but I like to stay with NHS ones as this is how I tracked my levels in the past and private results are differing and confusing me. I really don’t know if private results are more accurate or the NHS ones. It is the T4 that differs the most and is over range (always) on private but within range on NHS testing.
B12, folate and ferritin have all been okay. I take vitamin D only at the moment. The mouth spray gave me very bad acid reflux so I couldn’t take that unfortunately but I am trying to source one without fillers as TiggerMe advised.
I really don’t know if private results are more accurate or the NHS ones. It is the T4 that differs the most and is over range (always) on private but within range on NHS testing.
Private tests are often processed at same laboratory as NHS
Timing of testing is crucial. ….all thyroid blood tests early morning, ideally just before 9am, only drink water between waking and test and last dose levothyroxine 24 hours before test
And many people find different brands of levothyroxine are not interchangeable
Bloods should be retested 6-8 weeks after each dose change or brand change in levothyroxine
When comparing different test results from different labs with different ranges ….use the % calculator
Recommended that all thyroid blood tests early morning, ideally just before 9am, only drink water between waking and test and last dose levothyroxine 24 hours before test
This gives highest TSH, lowest FT4 and most consistent results. (Patient to patient tip)
T3 ….day before test split T3 as 2 or 3 smaller doses spread through the day, with last dose approximately 8-12 hours before test
Private tests are available as NHS currently rarely tests Ft3 or all relevant vitamins
If you normally take levothyroxine at bedtime/in night ...adjust timings as follows prior to blood test
If testing Monday morning, delay Saturday evening dose levothyroxine until Sunday morning. Delay Sunday evening dose levothyroxine until after blood test on Monday morning. Take Monday evening dose levothyroxine as per normal
Monitor My Health (NHS private test service) offer thyroid and vitamin testing, plus cholesterol and HBA1C for £65
I can recommend these Vitamin D capsules, very small and easy to take, no fillers or other artificial stuff, available on Amazon. They also do 4000IU, if you need a stronger one for a while.
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