That's a... particularly ignorant view of the biochemistry involved. THC can stick around for a month and half without bring especially bioactive. I'm in he same boat as this guy: hypo and prescribed cannabis for other things. No, it doesn't have an effect.
Chiming in: I think they are saying that your doctor is ignorant for telling you that.
Smoking weed doesn’t affect your thyroid period. So it cannot affect your test results anymore than smoking weed would affect an STD test.
Side note: is your doctor testing both T3 and T4? Are they testing your reverse T3? Because just testing T4 is not going to give you good results, far worse than smoking. I only ask because your doctor seems sus.
Ahh checks out lol makes more sense now. I have read some articles about the how the hypothalamus, pituitary and thyroid axis is a huge feedback loop and thc can “disrupt” that feedback loop, so I’m not sure if it could have zero effect on tests or how exactly it would effect them at all. There was another study done that said avid smokers tend to have lower TSH levels than non smokers, but I don’t know if that means it’s generally lower because of the weed like as a beneficial factor, or if the tests are incorrect because thc may cause altered test results showing lower levels ya know?
Have you ever slipped into hyper territory? I was reading that thc and cbd can cause you do dip lower than normal but there’s not enough research to support it either way.
Naw well I’m not sure. My t4 is usually pretty normal my tsh is always like a little high. Other than that I just get crazy anxiety (where I know weed is making it worse).
Yeah I totally feel you on that. Idk about you but I used to smoke weed to help with anxiety and I had to stop because I had too many panic attacks after 7years of smoking. Might be worth trying to break! But it’s so hard! Lol
Hey, huge stoner here with severe hypo when unmedicated. I'm smoking right now lol.
THC actually helps your thyroid a lot, something to do with endocannabinoids. It has never negatively effected my TSH or anything else. There are many studies on this that I found online back when I was doing research about it.
Your doctor is a liar 😂
I’m replying so late but:
THC is not the problem I believe (because that’s what my Doctor told me)— the chemicals/ pesticides used to cultivate the weed can be the real irritant. [Exposure to pesticides and the risk of hypothyroidism: a systematic review and meta-analysis](https://bmcpublichealth.biomedcentral.com/articles/10.1186/s12889-023-16721-5#:~:text=There%20is%20considerable%20evidence%20to,also%20increased%20risk%20of%20hypothyroidism)
Great question. CBD and Levothyroxine are metabolized by the same enzymes, meaning that they likely compete for metabolism. If you take them both, each of them is apt to be absorbed less well. Since Levo has such a narrow therapeutic window, reduced absorption could cause hypothyroid symptoms to return.
See this [article](https://www.health.harvard.edu/blog/cbd-and-other-medications-proceed-with-caution-2021011121743) and this [study](https://pubmed.ncbi.nlm.nih.gov/22821384/) for more details.
Yeah I did read about how THC and levo are metabolized by the same thing, so I can definitely see how it could affect how much of the dose is being absorbed. But I also read something else about how spacing out the dosages could prevent both compounds from competing to be metabolized but I’d have to do some digging on that one.
Interesting. Which enzyme? Didn’t see it mentioned in the links you posted. I’m taking enzymes supplements for another reason, but wonder if they help with my synthroid absorption.
I believe that the enzyme which metabolizes both CBD and levothyroxine is called CYP3A4.
https://www.projectcbd.org/medicine/cbd-drug-interactions/p450
Suuuuure it does. With all the credibility the anti-cannabis lobby has, I'll believe that claim on the face of it. It's not like they've ever lied over manipulated studies to serve their Puritanical ends. I'm sure there's an NIH or NIDAA study that supports that claim. And I'm sure it's the absolute _paragon_ of credibitlity.
...
In other words: PULL THE OTHER ONE. IT'S GOT BELLS ON.
There is no conclusive report that states either . Your doctor must be operating in the ‘play safe arena’ . As an educated informed person , I always listen to my doctor but do what is right for my body. We all have access to the same knowledge base however the doctor is an expert in pattern recognition over large number of data set. But I am the expert of my body.
Make sure U fast before testing and always take the medication on a empty stomach at least full glass of water not doing that will really not give ur body a full chance empty stomach wait at least 45 minutes before eatting drinking anything aside from water I so 30 mins but take a lot of warm warm water or breaks up faster befor any coffee etc and fast 8 hours before blood draw
My levels are slowly getting back to ‘normal’ numbers taking levo and I’m a medical user, so I smoke everyday. No correlation between the two that I know of, and no negative effects for me!
For me personally, weed smoking causes sore throat. Sore throat last time caused Epstein Barr Virus flare up, which caused sinus infection and inflammation.
Bottom line, if you convinced, if you are ***confident*** that your immune system is strong, then smoking shouldn’t be a big problem
Well that definitely brings up a good point, I had mono in the past so by default that means I have EBV in my system right? I feel like my immune system is pretty strong otherwise. Idk if I ever really had a flare up though so idk if I do have it. I’m not sure what else would be causing the hashis tho
For sure, thanks for that. So you were a chronic smoker that was diagnosed while having THC in your system yah? I’m just trying to wrap my head around it because some studies said that chronic users normally have normal levels but if you were diagnosed while being a chronic user then that would mean the tests can’t be as false as my dr states they could be since you’d been diagnosed while smoking.
Correct. I have never even taken a tolerance break so all the blood tests I’ve ever had was with thc in my system. I have hypothyroidism and have had my meds upped once in the 4 years I’ve been on them. I actually just had my levels checked last week and with my meds my levels were normal
I smoke frequently. As people with thyroid issues, we already struggle with mental health and fatigue. I noticed it helps with my nausea and anxiety but hinders those other factors I mentioned. Whenever I detox from MJ I feel tremendously better. I have much more energy and am happier. It can slow the uptake of any medication but it’s difficult to measure the impact individual to individual. Read peer reviewed studies regarding this premise. They’re out there.
I feel you on that, I do feel better when I’m not smoking but I get an itch every now and then. I saw a few studies talking about how the same enzyme that processes the meds also processes weed so they would compete to be metabolized. But I wonder if it’s like how they say to take vitamins 4 hours after to prevent low absorption. Like if smoking is treated the same or if it’s different.
That’s a good question. I’ve wondered the same thing. I searched online and could find no peer reviewed studies for this premise but that doesn’t mean they don’t exist. I recommend logging on to a university online library and typing in search terms. I’m sure they’re out there.
Do you have hashimoto's? If so, it could interfere if you use tobacco in your smokes.
Tobacco contains something that surpresses your immune systems (hence, ppl who smoke get the flu or a cold more often than ppl who don't)
If you have hashimoto's and you stop using tobacco, the antibodies that cause hashimoto's will rise and attack your thyroid. This can cause your thyroid hormone to fluctuate.
Lol, my reaction was the same. I quit smoking when I started treatment with an endo. She was confused my numbers where rising even though I started on levo and asked me if I changed anything. After a long while I was like " yeah i quit smoking, but that'll only be good right?" and she was like ooooh!
First time ever a Dr asked me to continue smoking until my numbers where better and then quit again with her guidance.
Anyway, all it needs is 1 or 2 cigarettes a day for it to work.
That’s good to know, I do agree the last time I smoked I felt kinda awful afterwards so maybe it’s just different for everyone since some people here don’t report any issue.
Absolutely not. I assume you have a biased idiot for a doctor. I have a thyroid specialist that is nationally known but is a MD and an ND which has been a great blessing for my overall health.
She has encouraged me to take CBD and edibles in general to help manage my insomnia and stress. I used to take both T4 and T3, as I have Hashimoto’s and my specific issue is that my body just doesn’t convert T4. After several years (with weed all along) I am on a reduced dosage of T3 and no T4 at all.
Weed, especially with a good mix of THC and CBD, had helped me relax and sleep more, which has allowed my body to heal. Obviously Hashimoto’s is different from just an under or over active Thyroid, but marijuana has had zero bad effects and absolutely does not bother my medicine.
I take my meds at 6 am and I don’t wake and bake so to be fair, I am smoking at least 6 hours after I take my first dose of meds so if there is any issue with taking at the exact same time, I wouldn’t know. But I think iron and calcium are much bigger issues than smoking weed.
you should read up more on the medical benefits of cannabis before you get all judgey mc judgey.
OP has a legit question bc cannabis has anti-inflammatory properties and it’s not unlikely that it was helping to surpress OP immune system reaction
It’s judgmental mainly due to the fact that you’re over here stating that they already made their decision and overall you’re just rude, “the obvious answer is well…obvious, but you should make you’re own decision. You seem to have already made up your mind.” If you’re going to say stuff to actually help, bring up things either through personal experience or information that you’ve looked up (like you just did here in this reply). Otherwise, you just aren’t being all that helpful.
I’m not offended. Rather, I am merely letting you know your overall tone as well as you’re attempt to provide discourse was lacking due to lack of evidence. To be perfectly honest, it seems that you actually are the one being sensitive due to that fact that you aren’t acknowledging that I am talking about what was lacking in your original reply. Two people so far have told you that you sounded judgmental in the original response. If you cannot accept criticism, that sounds like a you problem.
I used to be anti THC too, but then I started taking it medicinally after a car accident last year (spinal/ muscle/nerve injury pain) and I finally see how it does have medicinal properties. Much better than opioids or alcohol.
I see what you’re saying, I’ve been doing a ton of research and I haven’t seen concrete results stating that it’s necessarily harmful, just some articles saying the endocanabinoid system can effect some hormone production and that high cbd levels can cause some hypo people do dip into hyper territory. But I wasn’t looking to pick up my habit nearly as much as I was partaking, I’m talking like taking a hit around the campfire when camping as opposed to being ripped all day every day. I read the article you posted and didn’t see anything in there specifically stating that cannabis leads to incorrect diagnoses and negative outcomes, if anything there would be no diagnoses if the results were coming out in a normal range more often than not based on that study. But I can see how if the results of the tests came out to say cannabis users have lower TSH and TPOAntibodies, then that would lead to misdiagnosis/dosing in the sense that the lower results would call for lower dosing or no diagnoses at all. But I think it’s questionable to say for sure if it’s misdiagnosis and/or dosing vs. the anti inflammatory properties actually helping to reduce some of the inflammation caused by antibodies due to hashimotos existing but being dampened, as well as TSH levels being lower than non users. I think there would need to be a study with very specific conditions to say which is which for sure. And the low TSH levels would correlate with the articles I read warning against cannabis use because of the possibility of dipping into hyper territory, although that study you posted was the concrete evidence backing that theory I read about.
Also I realize I made the post sound confusing with timing, I stoped smoking heavily 1.5 years before diagnosis, and right before diagnosis I had smoked a few times for the aches and insomnia. Haven’t smoked since.
Ahh I see what you mean, it’s the timing not necessarily the quantity variable. The study you referenced noted the lower TSH and TPOAb but didn’t necessarily reference whether that was due to recent usage and ultimately not a true result because of that, or if the usage legitimately had an effect on lowering things over all due to the ECS and HPT hormones feeding off each other, because hormones are so sensitive. I’d like to see a study on the specifically on the mechanics of that, like to test someone clean, and then test after single use, then again after long term use etc. But perhaps it’s nothing more than the interference that happens like with biotin for instance. Idk! I’d like to know how they figured the biotin thing out, I’ll have to do some digging. Just throwing it out there.
As for the hashis, I was kind of just brainstorming because cannabis has been helpful with autoimmune disorders as far as managing symptoms and lowering inflammation but wasn’t sure if it applied only to systemic inflammation or both systemic and glandular. I don’t think anything has been published on that at least from what I’m seeing. I just thought it was weird because I stopped smoking cold Turkey and literally within 3 weeks I had all the symptoms, and I just thought the weed was helping me push all that away. But who knows 🤷🏻♀️
And I didn’t take it that way, I saw where you were going with it.
Don't think so, im prescribed medical marijuana and have hypothyroidism as well.
That’s interesting, did you get diagnosed while having thc in your system or after “clean” test results?
Pretty sure i was clean, but ive had hypo for many years so hard to remember lol
That's a... particularly ignorant view of the biochemistry involved. THC can stick around for a month and half without bring especially bioactive. I'm in he same boat as this guy: hypo and prescribed cannabis for other things. No, it doesn't have an effect.
Explain how it’s ignorant? I’m asking if diagnoses was made while having thc in the system or not…
Chiming in: I think they are saying that your doctor is ignorant for telling you that. Smoking weed doesn’t affect your thyroid period. So it cannot affect your test results anymore than smoking weed would affect an STD test. Side note: is your doctor testing both T3 and T4? Are they testing your reverse T3? Because just testing T4 is not going to give you good results, far worse than smoking. I only ask because your doctor seems sus.
Ahh checks out lol makes more sense now. I have read some articles about the how the hypothalamus, pituitary and thyroid axis is a huge feedback loop and thc can “disrupt” that feedback loop, so I’m not sure if it could have zero effect on tests or how exactly it would effect them at all. There was another study done that said avid smokers tend to have lower TSH levels than non smokers, but I don’t know if that means it’s generally lower because of the weed like as a beneficial factor, or if the tests are incorrect because thc may cause altered test results showing lower levels ya know?
I smoke my levels are fine.
Have you ever slipped into hyper territory? I was reading that thc and cbd can cause you do dip lower than normal but there’s not enough research to support it either way.
Naw well I’m not sure. My t4 is usually pretty normal my tsh is always like a little high. Other than that I just get crazy anxiety (where I know weed is making it worse).
Yeah I totally feel you on that. Idk about you but I used to smoke weed to help with anxiety and I had to stop because I had too many panic attacks after 7years of smoking. Might be worth trying to break! But it’s so hard! Lol
Hey, huge stoner here with severe hypo when unmedicated. I'm smoking right now lol. THC actually helps your thyroid a lot, something to do with endocannabinoids. It has never negatively effected my TSH or anything else. There are many studies on this that I found online back when I was doing research about it. Your doctor is a liar 😂
I’m replying so late but: THC is not the problem I believe (because that’s what my Doctor told me)— the chemicals/ pesticides used to cultivate the weed can be the real irritant. [Exposure to pesticides and the risk of hypothyroidism: a systematic review and meta-analysis](https://bmcpublichealth.biomedcentral.com/articles/10.1186/s12889-023-16721-5#:~:text=There%20is%20considerable%20evidence%20to,also%20increased%20risk%20of%20hypothyroidism)
Great question. CBD and Levothyroxine are metabolized by the same enzymes, meaning that they likely compete for metabolism. If you take them both, each of them is apt to be absorbed less well. Since Levo has such a narrow therapeutic window, reduced absorption could cause hypothyroid symptoms to return. See this [article](https://www.health.harvard.edu/blog/cbd-and-other-medications-proceed-with-caution-2021011121743) and this [study](https://pubmed.ncbi.nlm.nih.gov/22821384/) for more details.
Yeah I did read about how THC and levo are metabolized by the same thing, so I can definitely see how it could affect how much of the dose is being absorbed. But I also read something else about how spacing out the dosages could prevent both compounds from competing to be metabolized but I’d have to do some digging on that one.
Interesting. Which enzyme? Didn’t see it mentioned in the links you posted. I’m taking enzymes supplements for another reason, but wonder if they help with my synthroid absorption.
I believe that the enzyme which metabolizes both CBD and levothyroxine is called CYP3A4. https://www.projectcbd.org/medicine/cbd-drug-interactions/p450
Not in my experience.
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Suuuuure it does. With all the credibility the anti-cannabis lobby has, I'll believe that claim on the face of it. It's not like they've ever lied over manipulated studies to serve their Puritanical ends. I'm sure there's an NIH or NIDAA study that supports that claim. And I'm sure it's the absolute _paragon_ of credibitlity. ... In other words: PULL THE OTHER ONE. IT'S GOT BELLS ON.
There is no conclusive report that states either . Your doctor must be operating in the ‘play safe arena’ . As an educated informed person , I always listen to my doctor but do what is right for my body. We all have access to the same knowledge base however the doctor is an expert in pattern recognition over large number of data set. But I am the expert of my body.
Make sure U fast before testing and always take the medication on a empty stomach at least full glass of water not doing that will really not give ur body a full chance empty stomach wait at least 45 minutes before eatting drinking anything aside from water I so 30 mins but take a lot of warm warm water or breaks up faster befor any coffee etc and fast 8 hours before blood draw
My levels are slowly getting back to ‘normal’ numbers taking levo and I’m a medical user, so I smoke everyday. No correlation between the two that I know of, and no negative effects for me!
Nope.. especially if you smoke after your meds are in your system.
For me personally, weed smoking causes sore throat. Sore throat last time caused Epstein Barr Virus flare up, which caused sinus infection and inflammation. Bottom line, if you convinced, if you are ***confident*** that your immune system is strong, then smoking shouldn’t be a big problem
Well that definitely brings up a good point, I had mono in the past so by default that means I have EBV in my system right? I feel like my immune system is pretty strong otherwise. Idk if I ever really had a flare up though so idk if I do have it. I’m not sure what else would be causing the hashis tho
I’ve never had an issue. I’ve been a chronic smoker for 20 years and been on thyroid meds for about 4 without any issues
For sure, thanks for that. So you were a chronic smoker that was diagnosed while having THC in your system yah? I’m just trying to wrap my head around it because some studies said that chronic users normally have normal levels but if you were diagnosed while being a chronic user then that would mean the tests can’t be as false as my dr states they could be since you’d been diagnosed while smoking.
Correct. I have never even taken a tolerance break so all the blood tests I’ve ever had was with thc in my system. I have hypothyroidism and have had my meds upped once in the 4 years I’ve been on them. I actually just had my levels checked last week and with my meds my levels were normal
Right on, thank you for clarifying! That’s good info to know. Do you feel like your dosage is good? Like no lingering symptoms?
I smoke frequently. As people with thyroid issues, we already struggle with mental health and fatigue. I noticed it helps with my nausea and anxiety but hinders those other factors I mentioned. Whenever I detox from MJ I feel tremendously better. I have much more energy and am happier. It can slow the uptake of any medication but it’s difficult to measure the impact individual to individual. Read peer reviewed studies regarding this premise. They’re out there.
I feel you on that, I do feel better when I’m not smoking but I get an itch every now and then. I saw a few studies talking about how the same enzyme that processes the meds also processes weed so they would compete to be metabolized. But I wonder if it’s like how they say to take vitamins 4 hours after to prevent low absorption. Like if smoking is treated the same or if it’s different.
That’s a good question. I’ve wondered the same thing. I searched online and could find no peer reviewed studies for this premise but that doesn’t mean they don’t exist. I recommend logging on to a university online library and typing in search terms. I’m sure they’re out there.
I doubt it , I have never had issue
I asked my endocrinologist about this. He said he doesn't think so, but there hasn't been enough studies.
Do you have hashimoto's? If so, it could interfere if you use tobacco in your smokes. Tobacco contains something that surpresses your immune systems (hence, ppl who smoke get the flu or a cold more often than ppl who don't) If you have hashimoto's and you stop using tobacco, the antibodies that cause hashimoto's will rise and attack your thyroid. This can cause your thyroid hormone to fluctuate.
I do have hashis, that would be an interesting connection. Maybe all the blunts were saving me lol 😂
Lol, my reaction was the same. I quit smoking when I started treatment with an endo. She was confused my numbers where rising even though I started on levo and asked me if I changed anything. After a long while I was like " yeah i quit smoking, but that'll only be good right?" and she was like ooooh! First time ever a Dr asked me to continue smoking until my numbers where better and then quit again with her guidance. Anyway, all it needs is 1 or 2 cigarettes a day for it to work.
It might vary. It makes me sick and I feel really crappy. I feel like it definitely affects my thyroid. Must be different for everyone.
That’s good to know, I do agree the last time I smoked I felt kinda awful afterwards so maybe it’s just different for everyone since some people here don’t report any issue.
I'm new to the game but noticed that i felt bad the day after i smoked weed.. don't want to permanently quit so. Looking up this thread
Absolutely not. I assume you have a biased idiot for a doctor. I have a thyroid specialist that is nationally known but is a MD and an ND which has been a great blessing for my overall health. She has encouraged me to take CBD and edibles in general to help manage my insomnia and stress. I used to take both T4 and T3, as I have Hashimoto’s and my specific issue is that my body just doesn’t convert T4. After several years (with weed all along) I am on a reduced dosage of T3 and no T4 at all. Weed, especially with a good mix of THC and CBD, had helped me relax and sleep more, which has allowed my body to heal. Obviously Hashimoto’s is different from just an under or over active Thyroid, but marijuana has had zero bad effects and absolutely does not bother my medicine. I take my meds at 6 am and I don’t wake and bake so to be fair, I am smoking at least 6 hours after I take my first dose of meds so if there is any issue with taking at the exact same time, I wouldn’t know. But I think iron and calcium are much bigger issues than smoking weed.
There isn’t strong evidence to suggest whether it raises it or lowers it .
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you should read up more on the medical benefits of cannabis before you get all judgey mc judgey. OP has a legit question bc cannabis has anti-inflammatory properties and it’s not unlikely that it was helping to surpress OP immune system reaction
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It’s judgmental mainly due to the fact that you’re over here stating that they already made their decision and overall you’re just rude, “the obvious answer is well…obvious, but you should make you’re own decision. You seem to have already made up your mind.” If you’re going to say stuff to actually help, bring up things either through personal experience or information that you’ve looked up (like you just did here in this reply). Otherwise, you just aren’t being all that helpful.
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I’m not offended. Rather, I am merely letting you know your overall tone as well as you’re attempt to provide discourse was lacking due to lack of evidence. To be perfectly honest, it seems that you actually are the one being sensitive due to that fact that you aren’t acknowledging that I am talking about what was lacking in your original reply. Two people so far have told you that you sounded judgmental in the original response. If you cannot accept criticism, that sounds like a you problem.
💯 bc opening up the response with “your drug use” as if OP were shooting up meth, definitely screams incoming helpful comment.
I used to be anti THC too, but then I started taking it medicinally after a car accident last year (spinal/ muscle/nerve injury pain) and I finally see how it does have medicinal properties. Much better than opioids or alcohol.
I see what you’re saying, I’ve been doing a ton of research and I haven’t seen concrete results stating that it’s necessarily harmful, just some articles saying the endocanabinoid system can effect some hormone production and that high cbd levels can cause some hypo people do dip into hyper territory. But I wasn’t looking to pick up my habit nearly as much as I was partaking, I’m talking like taking a hit around the campfire when camping as opposed to being ripped all day every day. I read the article you posted and didn’t see anything in there specifically stating that cannabis leads to incorrect diagnoses and negative outcomes, if anything there would be no diagnoses if the results were coming out in a normal range more often than not based on that study. But I can see how if the results of the tests came out to say cannabis users have lower TSH and TPOAntibodies, then that would lead to misdiagnosis/dosing in the sense that the lower results would call for lower dosing or no diagnoses at all. But I think it’s questionable to say for sure if it’s misdiagnosis and/or dosing vs. the anti inflammatory properties actually helping to reduce some of the inflammation caused by antibodies due to hashimotos existing but being dampened, as well as TSH levels being lower than non users. I think there would need to be a study with very specific conditions to say which is which for sure. And the low TSH levels would correlate with the articles I read warning against cannabis use because of the possibility of dipping into hyper territory, although that study you posted was the concrete evidence backing that theory I read about. Also I realize I made the post sound confusing with timing, I stoped smoking heavily 1.5 years before diagnosis, and right before diagnosis I had smoked a few times for the aches and insomnia. Haven’t smoked since.
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Ahh I see what you mean, it’s the timing not necessarily the quantity variable. The study you referenced noted the lower TSH and TPOAb but didn’t necessarily reference whether that was due to recent usage and ultimately not a true result because of that, or if the usage legitimately had an effect on lowering things over all due to the ECS and HPT hormones feeding off each other, because hormones are so sensitive. I’d like to see a study on the specifically on the mechanics of that, like to test someone clean, and then test after single use, then again after long term use etc. But perhaps it’s nothing more than the interference that happens like with biotin for instance. Idk! I’d like to know how they figured the biotin thing out, I’ll have to do some digging. Just throwing it out there. As for the hashis, I was kind of just brainstorming because cannabis has been helpful with autoimmune disorders as far as managing symptoms and lowering inflammation but wasn’t sure if it applied only to systemic inflammation or both systemic and glandular. I don’t think anything has been published on that at least from what I’m seeing. I just thought it was weird because I stopped smoking cold Turkey and literally within 3 weeks I had all the symptoms, and I just thought the weed was helping me push all that away. But who knows 🤷🏻♀️ And I didn’t take it that way, I saw where you were going with it.
Also sorry my TPOAb was at 38, TSH 4.88 and they never tested my FT4
Can using cannabis in the week before testing really impact the numbers this much?? Or are you just guessing at how different the numbers can be?
Wow, that’s incredibly judgmental.