Thyroid UK
89,107 members103,636 posts

Paleo / AIP

Hi all,

So as some of you may know I have terrible cognitive problems which nothing seems to resolve. (My vitamins aren't due to be checked until late November and are in a previous post.)

It seems now I'm a week paleo / (almost aip) my brain is worse?!?! I'm having altzheimers symptoms basically. I'm only 30.....!

I don't know if it could be the Levo. My vitamins or now this new diet? I'm trying everything and nothing is working and I'm getting worse. Doctors aren't an option as they just want to refer me to mental health support :(

3 Replies

Many of us have suffered cognitive symptoms which can be due to hypothyroidism. It can also be due to having a very low Free T3 (rarely tested).

Levothyroxine is T4. It has to convert to T3. T3 is the only Active thyroid hormone. It is needed in all of our receptor cells. Brain and heart contain the most.

Get your vitamins/minerals tested: B12, Vit D, iron, ferritin and folate. B12 can also cause cognitive problems. It should be around 1,000 and most of us don't come near that so we have to supplement. Do not supplement with anything till you have tests done.

So you have to have sufficient levothyroxine with optimum vitamins/minerals levels.

Always get a print-out of your results with the ranges. Ranges are important and enables members to respond. Without ranges we cannot as labs differ in their ranges.

Blood tests for thyroid hormones always have to be at the very earliest, fasting (you can drink water) and allow a gap of 24 hours from your last dose of levo and the test and take afterwards.


Thankyou, I've had all of these tests end of sept I think my T3 was in the top Quarter which is apparently good. ( how frustrating) my b12 was around 283 x


B12 has to be around 1,000 to try to prevent alzeimers/dementia. Also if you can afford it get a Homocysteine blood test - if it high it can shrink our brain which causes dementia/alzeimers. B12 lowers it and we have to supplement with B12 sublingual methylcobalamin tablets to reduce homocysteine level.

Before doing anything, pop over to the pernicious anaemia society in healthunlocked to see if they suggest you need a test to confirm or not whether you should have a blood test for pernicious anaemia.

1 like

You may also like...