Blood results - advice needed: Hello, So I have... - Thyroid UK

Thyroid UK
109,933 members127,785 posts

Blood results - advice needed



So I have blood results from Blue Horizon.

Everything thyroid looks ‘normal’.

Drs commentary was that CRP marker is high - sign of inflammation repeat test in a few weeks .

Clearly low Vit D. (But most people have that - and most people don’t feel like me!)

Have GP appointment 2 March .

Any advice?

Currently have only a fibromyalgia ‘diagnosis’. Feeling awful.

13 Replies

Your VitD would be good around 100 ++ - are you supplementing ? Are you taking any meds for the Fibro ?

MollieDog19 in reply to Marz

Thanks for reply

Only Amitriptyline & citalopram.

Will start higher dose Vit D.

Marz in reply to MollieDog19

How much D are you taking ?

MollieDog19 in reply to Marz

None currently - last I had was the ones where you take one per fortnight. Never sure how much I need to take to correct.

Marz in reply to MollieDog19

Sounds as if you had loading doses. I would suggest 5000 iu's daily to bring your level up to 100 ++ Better You do an under the tongue spray. I see SeasideSusie is updating you .... 🥰

MollieDog19 in reply to Marz

Thanks for advice

Marz in reply to MollieDog19

Have you finished loading doses of VitD and been re-tested ? Are you on maintenance dose ?


B12 could be better, even top of range. Or do an Active B12 test with Medichecks.

Have they sent another kit for Folate as it was haemolysed?

As Marz says, Vit D should be much higher, 100-150nmol is recommended. Let us know if you are supplementing or not as there is a lot of information to pass on about that.

Your TSH is a bit higher than a normal healthy person would be expected to have. One would expect to see TSH no higher than 2 with FT4 mid-range or a bit higher. What time did you do the test? Did you fast from evening meal the night before, and drink water only before the test on the day, no tea, coffee, etc?

Hi -thanks v much

not currently supplementing Vit D but have done so in past - advice welcome as unsure how much to take.

Did take bloods at 9.30am fasting from previous tea time.

Will ask for another kit for folate.

V confused about advice here and ranges given for tests.

Feel like it will be hard argument to win if everything clearly in range. What should I read?

SeasideSusieAdministrator in reply to MollieDog19

Ring BH and ask if they will send free kit for haemolysed Folate, I would have thought they would do that and suggest it themselves.

I will go on PC and get info about Vit D and come back.

Thanks - v much appreciated.

SeasideSusieAdministrator in reply to MollieDog19


Vit D

With a current Vit D level of 43nmol/L you will need to supplement with 5,000iu D3 daily.

Retest in 3 months.

Once you've reached the recommended level of 100-150nmol/L (maybe go for mid-range or higher end) then you'll need a maintenance dose to keep it there, which may be 2000iu daily, maybe more or less, maybe less in summer than winter, it's trial and error so it's recommended to retest once or twice a year to keep within the recommended range. You can do this with a private fingerprick blood spot test with an NHS lab which offers this test to the general public:

D3 comes in a few forms:

Softgels - eg Doctor's Best. These are oil based so the oil aids absorption of the D3. They are small and easy to swallow and have excellent absorption. No unnecessary excipients, a nice clean supplement with just 2 ingredients - D3 and extra virgin olive oil. Usually very reasonably priced for the quality (Dolphin Fitness is where I buy mine, usually cheaper than anywhere else).

Oral spray - absorbed through the membranes in the oral cavity. Gives good absorption and often chosen by patients with autoimmune thyroid disease (Hashimoto's - confirmed by raised thyroid antibodies) as it bypasses the gut. Contains quite a few excipients.

Liquid (sublingual drops) - eg Vitabay Organic, another clean supplement with no unnecessary excipients, oil based, good absorption.

Tablets and capsules - not recommended as they have poor absorption.

Doctors don't know, because they're not taught much about nutrients, but there are important cofactors needed when taking D3 as recommended by the Vit D Council

D3 aids absorption of calcium from food and Vit K2-MK7 directs the calcium to bones and teeth where it is needed and away from arteries and soft tissues where it can be deposited and cause problems such as hardening of the arteries, kidney stones, etc.

D3 and K2 are fat soluble so should be taken with the fattiest meal of the day, D3 four hours away from thyroid meds if taking D3 as tablets/capsules/softgels, no necessity if using an oral spray.

Magnesium helps D3 to work. We need Magnesium so that the body utilises D3, it's required to convert Vit D into it's active form. So it's important we ensure we take magnesium when supplementing with D3.

Magnesium comes in different forms, check to see which would suit you best and as it's calming it's best taken in the evening, four hours away from thyroid meds if taking magnesium as tablets/capsules, no necessity if using topical forms of magnesium.



A B12 level of 320pmol/L is the same as 433.5pg/ml.

According to an extract from the book, "Could it be B12?" by Sally M. Pacholok:

"We believe that the 'normal' serum B12 threshold needs to be raised from 200 pg/ml to at least 450 pg/ml because deficiencies begin to appear in the cerebrospinal fluid below 550".

"For brain and nervous system health and prevention of disease in older adults, serum B12 levels should be maintained near or above 1000 pg/ml."

You could supplement with a good quality, bioavailable B Complex containing methylcobalamin and methylfolate, eg Thorne Basic B or Igennus Super B which should raise your B12.

Just to make absolutely sure, you may want to check the signs/symptoms of B12 deficiency to exclude this:


When you have this result back, the aim is for folate to be at least half way through range.

If your folate level is not high enough, the B Complex will also help with that.

When taking a B Complex, because it contains Biotin (B7) it's important to leave it off before any blood tests. This is because if Biotin is used in the testing procedure (which most labs do use) then it gives false results.


V confused about advice here and ranges given for tests.

What is it that's confusing you? Maybe we can explain it. Reference ranges vary from lab to lab so you will see many different ranges on the forum.


Feel like it will be hard argument to win if everything clearly in range. What should I read?

Your current thyroid results are classed as normal, there's nothing there that will get you a diagnosis or prescription. At the very least your TSH would have to be over range with FT4 very low in range.

It may help to optimise your nutrient levels, I'd retest in maybe 4 months' time to see if supplementing has improved your levels.

I have the book "Your Thyroid and How to Keep it Healthy" by Dr Barry Durrant Peatfield. I don't have a fibro diagnosis, have had my diagnosis of hypothyroidism for almost 45 years and mine appeared to start not long after the birth of my second child.

Marz in reply to SeasideSusie

Great response Susie ... always reminds me of things - so thank you 😷

You may also like...