I’ve been diagnosed with low b12 and about to get injections. What I’m wondering does this interfere with thyroid blood tests ? Im sure I read that you have to stop taking supplements too before you get tested? Is this correct, if so how long?
Low b12 : I’ve been diagnosed with low b12 and... - Thyroid UK
Low b12
![Roma2975 profile image](https://images.hu-production.be/avatars/435533d4c96e4541ae864be26f7acfee_small@2x_100x100.jpg)
![Roma2975 profile image](https://images.hu-production.be/avatars/435533d4c96e4541ae864be26f7acfee_small@2x_100x100.jpg)
![SlowDragon profile image](https://images.hu-production.be/avatars/27fbbead1f291333f83bad1f31359fe3_small@2x_100x100.jpg)
No it’s fine
Improving low B12 will assist thyroid
It’s only vitamin B complex or any supplements that contain biotin that you need to stop 5-7 days before any blood tests
Biotin can falsely affect test results
![SlowDragon profile image](https://images.hu-production.be/avatars/27fbbead1f291333f83bad1f31359fe3_small@2x_100x100.jpg)
Previous post showing all four vitamins were far too low or deficient 5 months ago
B12 272(200-883)
Serum folate 3.6(2.1-20)
Ferritin 36(15-200)
Vit d 56nmol/l
How many B12 injections are you getting and will you be getting them every 2-3 months going forward
if not getting ongoing B12 injections you will need to self supplement B12 daily
Folate also far too low. Looking to maintain at 15-20
As you have B12 injections it’s recommended also to supplement a good quality daily vitamin B complex, one with folate in (not folic acid) may be beneficial.
This can help keep all B vitamins in balance and will help improve B12 levels too
Start separate daily vitamin B complex about a week after first B12 injection
With serum B12 result below 500, (Or active B12 below 70) recommended to be taking a separate B12 supplement and add a separate vitamin B Complex after a week
Then once your serum B12 is over 500 (or Active B12 level has reached 70), you may be able to reduce then stop the B12 and just carry on with the B Complex.
If Vegetarian or vegan likely to need ongoing separate B12 few times a week
If not getting injections
Highly effective B12 drops
natureprovides.com/products...
Or
B12 sublingual lozenges
uk.iherb.com/pr/jarrow-form...
cytoplan.co.uk/shop-by-prod...
B12 range in U.K. is too wide
Interesting that in this research B12 below 400 is considered inadequate
healthunlocked.com/thyroidu...
Low folate
supplementing a good quality daily vitamin B complex, one with folate in (not folic acid)
This can help keep all B vitamins in balance and will help improve B12 levels too
Difference between folate and folic acid
healthline.com/nutrition/fo...
B vitamins best taken after breakfast
Thorne Basic B recommended vitamin B complex that contains folate, but they are large capsules. (You can tip powder out if can’t swallow capsule)
Thorne currently difficult to find at reasonable price, should be around £20-£25. iherb.com often have in stock. Or try ebay
Other options
healthunlocked.com/thyroidu....
IMPORTANT......If you are taking vitamin B complex, or any supplements containing biotin, remember to stop these 7 days before ALL BLOOD TESTS , as biotin can falsely affect test results
endo.confex.com/endo/2016en...
endocrinenews.endocrine.org...
In week before blood test, when you stop vitamin B complex, you might want to consider taking a separate folate supplement (eg Jarrow methyl folate 400mcg) and continue separate B12
Post discussing how biotin can affect test results
![SlowDragon profile image](https://images.hu-production.be/avatars/27fbbead1f291333f83bad1f31359fe3_small@2x_100x100.jpg)
Vit d 56nmol/l
How much vitamin D are you taking daily
If not retested yet ….suggest you test now
Aiming for vitamin D at 80-125nmol
Test twice yearly via NHS private testing service when supplementing
Vitamin D mouth spray by Better You is very effective as it avoids poor gut function.
There’s a version made that also contains vitamin K2 Mk7.
One spray = 1000iu
amazon.co.uk/BetterYou-Dlux...
It’s trial and error what dose we need, with thyroid issues we frequently need higher dose than average
Vitamin D and thyroid disease
grassrootshealth.net/blog/t...
Vitamin D may prevent Autoimmune disease
newscientist.com/article/23...
Web links about taking important cofactors - magnesium and Vit K2-MK7
Magnesium best taken in the afternoon or evening, but must be four hours away from levothyroxine
betterbones.com/bone-nutrit...
medicalnewstoday.com/articl...
livescience.com/61866-magne...
sciencedaily.com/releases/2...
Interesting article by Dr Malcolm Kendrick on magnesium
drmalcolmkendrick.org/categ...
Vitamin K2 mk7
betterbones.com/bone-nutrit...
healthline.com/nutrition/vi...
Ferritin 36
This was virtually deficient
Did you get full iron panel test for anaemia via GP
Ferritin needs to be at least over 70 minimum for good conversion of Ft4 (levothyroxine) to Ft3 (active hormone )
Very low vitamin levels suggests levothyroxine dose too low/poor gut absorption
Likely low Ft3 as a result
Strongly recommend getting FULL thyroid and vitamin testing 6-8 weeks after adding daily vitamin B complex
Retest folate, B12 and ferritin at least annually
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)
Private tests are available as NHS currently rarely tests Ft3 or all relevant vitamins
List of private testing options and money off codes
thyroiduk.org/getting-a-dia...
Medichecks Thyroid plus antibodies and vitamins
medichecks.com/products/adv...
Blue Horizon Thyroid Premium Gold includes antibodies, cortisol and vitamins
bluehorizonbloodtests.co.uk...
Only do private testing early Monday or Tuesday morning.
Link about thyroid blood tests
thyroiduk.org/getting-a-dia...
Link about Hashimoto’s
thyroiduk.org/hypothyroid-b...
Symptoms of hypothyroidism
thyroiduk.org/wp-content/up...
Tips on how to do DIY finger prick test
healthunlocked.com/thyroidu...
Medichecks and BH also offer private blood draw at clinic near you, or private nurse to your own home…..for an extra fee
![shaws profile image](https://images.hu-production.be/avatars/315f6af7d7ebd52a995c0f9bec6552df_small@2x_100x100.jpg)
The following is from the link below:-
The association between pernicious anemia and autoimmune thyroiditis was frequent in our study. It was observed in a series of 78 patients with pernicious anemia. Markson et al. have noted positive anti-thyroid antibodies in 33% of the cases [5] and Doniach et al.19 Dec 2017.
and
Is pernicious anemia linked to hypothyroidism?
Pernicious anemia occurs 20 times more frequently in patients with hypothyroidism than generally. Macrocytosis is found in up to 55% patients with hypothyroidism and may result from the insufficiency of the thyroid hormones themselves without nutritive deficit.
thanks you . I’m getting further testing to rule out PA.