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L-theanine sup might be increasing my thyroid med action-slight hyper feel......................

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Posted 4/10/2022 9:55 AM (GMT -5)
I was trying to figure out why my thyroid med was getting way too effective. My need for it has been gradually dropping but not this much this fast.

Only difference I made was taking l theanine supplement every day for the last three months for stress. I never used it before.

There is little information on the combination of these two. But there was some info I read that said similar things to what I’ve been experiencing.

Seems to have long-term effects not just one day.

Wonder if anyone else, even without thyroid issues as experienced increased excitability with this supplement instead of the relaxing properties it’s supposed to have?
Posted 4/10/2022 10:17 AM (GMT -5)
Astroman - to clarify - you’re meaning L Theanine (with thyroid)?

I will ask my husband - he takes both - don’t recall him saying anything about it.

Are you taking the two together or close to each other?
Posted 4/10/2022 10:46 AM (GMT -5)
It would make sense as L-theanine elevates levels of GABA.

And GABA inhibits thyroid stimulating hormone (TSH) release from the pituitary. So then it would make sense as (and this is old news to you) less TSH makes your body think you have enough thyroid hormones, but then you don't.

https://pubmed.ncbi.nlm.nih.gov/16527506/

On the plus side, one thing to converge from this is that your pituitary is still functional despite the thyroid issue.
Posted 4/10/2022 10:47 AM (GMT -5)
i have been taking l-theanine - approx 250mg before bed each night for a good while now
along with T3 and T4 combination for my thyroid ( hashimotos )

i have not noticed any interaction with the thyroid meds or impact on thyroid test results
last test was only TSH (local GP) a few days ago - but was about ideal at 0.75

are you looking at test results astro or subjective measures
Posted 4/10/2022 11:01 AM (GMT -5)
This is just a guess I have not taken a thyroid test lately.

I’m so used to going by feel, that I can usually guess where I’m at before the thyroid test panel.

I had a great thyroid doctor which is very very difficult to find in the United States, then he retired. We were a pretty good team. My new thyroid doctor doesn’t like listening to patient’s input so much, typical.

I always have a personal backstock of natural thyroid medicine. This is because as most of us know who use it - sometimes there are stronger or weaker batches made, This is not supposed to happen but still does for some reason. Human error. I could switch to another bottle but this takes time.

It really sucks that a majority of doctors don’t appreciate a patient that actually understands and has a lot of experience, years treating their thyroid. This gland is way more touchy than what the average doctor Thinks.
Posted 4/10/2022 11:13 AM (GMT -5)
My husband takes the theanine during the day - hasn’t noticed anything re:thyroid.
Posted 4/11/2022 10:14 AM (GMT -5)

RainyCloud said...
It would make sense as L-theanine elevates levels of GABA.

And GABA inhibits thyroid stimulating hormone (TSH) release from the pituitary. So then it would make sense as (and this is old news to you) less TSH makes your body think you have enough thyroid hormones, but then you don't.

https://pubmed.ncbi.nlm.nih.gov/16527506/

On the plus side, one thing to converge from this is that your pituitary is still functional despite the thyroid issue.

that's an interesting one Rainy

something i have not come across before

although i had some trouble making sense of the paper ..... they seemed to be saying " it might do this - then again it might do the complete opposite!"

question that comes to my mind though is - if L-theanine lowers TSH - wouldn't that tend to tell the body it has enough Thyroid hormones and to release less/convert less - whereas what astro seems to be experiencing is - when he takes theanine he feels like he has more thyroid hormones running around
Posted 4/11/2022 2:06 PM (GMT -5)
"......although i had some trouble making sense of the paper ..... they seemed to be saying " it might do this - then again it might do the complete opposite!"

question that comes to my mind though is - if L-theanine lowers TSH - wouldn't that tend to tell the body it has enough Thyroid hormones and to release less/convert less - whereas what astro seems to be experiencing is - when he takes theanine he feels like he has more thyroid hormones running around...."

---------------------------------------------------------------------------------

Whatever is going on, at least I have enough thyroid experience to not freak out!

Yesterday I took no thyroid med to re-establish a "re-set point" today. Didnt take any L-theanine either. I did drink some Kava tea for relaxation (wont make a habit out of that though, its not liver friendly).

Finally calmed down a little last night and was very mello this AM.

Started taking 3/4 of my natural thyroid amount in spaced increments this afternoon. I take it sublingual after a swished out mouth, no need for empty stomach then.

(I can't wait for the day of home thyroid test kits, I read they were in development phases last year).
Posted 4/16/2022 10:26 AM (GMT -5)
Wow, it’s nice to be relaxed again for multiple days in a row, what a over energetic trip the last couple of weeks has been!

I really can’t take a thyroid test right now because I lord thyroid medicine itself also, and it takes six weeks to get an accurate level reading for testing.

So I think I’m gonna settle for around 75% of the amount of natural thyroid (NP brand with t4 and t3)I was taking. If I can leave that at about five weeks I can then test. That was a pretty huge drop but I feel pretty good right now.

My gradual thyroid step decreases for the last five years since going gluten-free and, to the best of my knowledge, tick illness free, have not been that dramatic, so this is kind of odd.

I will try to get my cortisol tested at that time as well.

Probably should’ve had cortisol and thyroid tested when my brain was going 1,000,000 miles an hour a couple weeks ago. I could not wait so I took matters in my own hands as usual, and now I feel better.

Guessing is certainly not suggested for newbies, however when you’ve been doing this for two decades guessing is a little less risky.
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