Advice on high Transferrin saturation - Thyroid UK

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Advice on high Transferrin saturation

Bean101 profile image
23 Replies

I would appreciate any advice on my iron panel results

Blue Horizon

CRP. < 0.6

Iron 32.30. (5.8-34.5)

Ferritin 150 ( 13-150)

Transferrin saturation 55.6. ( 20-50)

TIBC. 58.1. (45-81

Cortisol 404. (166-507)

NHS results

Haemoglobin concentration 145. (120-250

Red blood cell count 4.80 (3.8-4.80)

Haematocrit 0.44 (0.36-0.46)

Mean cell volume 92. (83-101)

Mean cell Haemoglobin level 30.2. ( 27-32)

Mean cell Haemoglobin concentration 327 (315-345)

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Bean101
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radd profile image
radd

Bean101,

Transferrin saturation is only a calculation of the other results. It demonstrates through this calculation how much transferrin (transporter) is saturated and in transit around the body. This also gives an idea how much capacity is left to bind iron and move to appropriate sites (such as ferritin).

It is calculated by dividing the S/I by TIBC, x 100, and rounding to nearest tenth of a decimal place. S/I/TIBC) x 100=TS%

For example - your S/I is 32.30 & TIBC is 58.1 so (32.50 divided by 58.1) x 100 = 55.59

T/S ranges vary slightly but usually anything over 45% -50% is considered high. This has happened because all your numbers are on the high side. If you are supplementing iron you need to slow down and if you aren’t, you need to check in a few months that iron hasn’t crept any higher.

Your RBC is good and representative of all that iron you have that is working so well.

Bean101 profile image
Bean101 in reply toradd

No I don’t take any iron and only have red meat once a week, so I am concerned about the results

radd profile image
radd in reply toBean101

Bean101,

When we are hypothyroid, iron metabolism can slow down. Equally if thyroid meds have suddenly started working better they can up-regulate iron metabolism and the whole erythropoiesis process.

I wouldn't worry at this stage as things may even out. (I have genetic iron overload and my T/S has been 99% and is usually always over range). However, I would make your GP aware and ask that iron levels be monitored, say every 4 months just to know what is happening as excess unbound iron is toxic. .

Bean101 profile image
Bean101 in reply toradd

Thank you Radd, I have just received thyroid results

TSH. 0.01. (0.27-4.20)

T4 86.7 (66-181)

FT4 14.9. (12-22)

FT3 5.76 (3-1-6.8)

radd profile image
radd in reply toBean101

Bean101,

They look ok. Some like FT4 a bit higher.

What are you medicating and how do you feel?

Bean101 profile image
Bean101 in reply toradd

I’m on 62.5T4 ( mercury pharma) 15T3

I’m feeling awful

SeasideSusie profile image
SeasideSusieRemembering

Bean101

CRP. < 0.6

I believe the BH range for CRP is <5. Your result is nice and low and doesn't suggest any inflammation, this tells us that your ferritin result will be a true measure (ferritin rises with inflammation).

Iron 32.30. (5.8-34.5)

Ferritin 150 ( 13-150)

Transferrin saturation 55.6. ( 20-50)

TIBC. 58.1. (45-81)

Optimal iron panel levels according to rt3-adrenals.org/Iron_test_... are:

Serum iron: 55 to 70% of the range, higher end for men - yours is 92.33% so is almost top of range.

Saturation: optimal is 35 to 45%, higher end for men - yours is 55.6% so again is high

Total Iron Binding Capacity (TIBC): Low in range indicates lack of capacity for additional iron, High in range indicates body's need for supplemental iron - yours is 36.39% so towards the lower end suggesting no need for supplements.

Ferritin: some experts say the optimal level for thyroid function is 90-110ug/L.

Your iron panel shows high for everything with TIBC showing no need for supplements.

Do you take any iron supplements at all?

Haemoglobin concentration 145. (120-250

Red blood cell count 4.80 (3.8-4.80)

Haematocrit 0.44 (0.36-0.46)

Mean cell volume 92. (83-101)

Mean cell Haemoglobin level 30.2. ( 27-32)

Mean cell Haemoglobin concentration 327 (315-345)

These results don't suggest anaemia, they all sit nicely within their ranges except red blood cell count which is top of range but I don't know if this is significant, maybe ask your GP to keep an eye on it if you're concerned.

Bean101 profile image
Bean101 in reply toSeasideSusie

Thank you for your reply, no I don’t take any iron

SeasideSusie profile image
SeasideSusieRemembering in reply toBean101

So you seem to be making a very good amount of iron naturally. Your results are within range, apart from saturation which is over range.

Do you have a previous iron panel that you can compare these results to, just wondering if your level is increasing which would suggest that maybe you should discuss with your GP and suggest monitoring.

Bean101 profile image
Bean101 in reply toSeasideSusie

November 2022

CRP. 0.3

Iron. 26.5. (5.8-34.5)

TIBC. 60.7 (45-82)

UIBC 34.2 (24.2-70)

Trans 43.7 (20-50)

Ferritin 122 (13-150))

Both results I was on 62.5T4 & 15T3

Should I stop vitamin C?

Is there anything I can do to get it down?

SeasideSusie profile image
SeasideSusieRemembering in reply toBean101

Should I stop vitamin C?

Taking Vit C with iron tablets aids absorption of iron so I wouldn't have thought that was anything to do with your current iron levels considering that you don't take iron tablets.

Your levels seem to have risen quite a lot since last time so I would discuss with your GP.

Is there anything I can do to get it down?

I think that's a question for your GP but as the levels are within range, albeit close to the top and rising, I wouldn't be surprised if GP says they're fine.

radd profile image
radd in reply toBean101

Bean101,

You can inhibit absorption of iron by not supplementing Vit C close to meals, especially those foods high in iron, and replace accompanying drinks with milk or water. Drinks that aid iron absorption are orange and juice and alcohol so need to avoided near foods.

Also watch out for iron in supplements (that you didn't realise was there) and fortified cereals, etc.

The body can't excrete iron so has lots of safety mechanisms to only allow absorbtion of what can be stored or utilised. Sometimes these mechanisms can go askew or genetic impairments are slowly disclosed after periods stop. Are you (peri) menopausal?

Bean101 profile image
Bean101 in reply toradd

I am menopause

radd profile image
radd in reply toBean101

Bean101,

My haemochramaotosis was diagnosed when my periods stopped. The biggest clue is the T/S starts rising alongside or even ahead of ferritin levels. Just ask your GP to monitor your iron levels via an iron panel. As I said it might be blip that evens out.

'TSH. 0.01. (0.27-4.20)

T4 86.7 (66-181)

FT4 14.9. (12-22)

FT3 5.76 (3-1-6.8)

I’m on 62.5T4 ( mercury pharma) 15T3. I’m feeling awful'

If you feel awful, it definitely isn't a lack of iron thats prohibiting meds from working! 62.4mcg of Levo isn't much. If this were me I would try raising FT4 levels by increasing T4 meds and reduce T3 by 5mcg to prevent levels going over range.

When we medicate T3 we only get T3, but when we medicate T4 along side T3, we get that T4 and T3 but also an extra amount of T3 by its presence inducing a positive effect on the deiodinases (converting enzymes of T4).

It is important not to take thyroid hormones levels higher than your body needs or it will start turning the excess to inactive metabolites (more safety mechanisms). This is why I would reduce T3 levels to maintain an equal ratio between FT4 and FT3.

Bean101 profile image
Bean101 in reply toradd

I have D101 +|+

D102 +~

radd profile image
radd in reply toBean101

Bean101,

Yes, many(most) of us on the forum have deiodinase impairments (me too) and why the addition of T3 is essential. However, the individual ratio of T4/T3 becomes even more important as these impairments not only allow less conversion of T3 but less wiggle room if levels are little too high or a little too low.

eg the amount of T3 we medicate must allow for the conversion not matter how small you think it may be. And remember an impairment is only an indication of poor function (not a guarantee) because other genes will be helping and compensating for that impairments loss.

Many on T4/T3 combo requires T4 levels higher than your in relation to T3 to achieve well being. Therefore, if this were me I would stick by what I originally suggested.

Bean101 profile image
Bean101 in reply toradd

Thank you so much, I will increase my T4

WhyAmISoTired profile image
WhyAmISoTired

Sometimes ferritin is high when B12 is too low. You should double check that since you are not taking iron supplements.

Sneedle profile image
Sneedle in reply toWhyAmISoTired

Jumping in here as I'm also high-ish on all the iron studies without supplementing and have low b12 - could you say a bit more about how it works?I've been putting my iron results down to menstruation having finished about 10 months ago.

😊

WhyAmISoTired profile image
WhyAmISoTired in reply toSneedle

Your body needs both B12 and iron to make blood cells (and for other things as well). If there isn't enough B12, fewer blood cells get made, and so the ferritin may look high because your body can't use it. This may not necessarily show in your bloodwork, meaning you may not show as having anemia. I think it is relatively common that ferritin levels drop after supplementing with B12.

Bean101 profile image
Bean101 in reply toWhyAmISoTired

My serum B12 has just come back very high!

B 12. 2952. (145-589)

I supplement B complex ( transdermal for children as I struggle to tolerate supplements)

Joannak profile image
Joannak

Hi this happened to me when I got a full hysterectomy and stopped bleeding, mine went to 870. I found out am a carrier of haemochromatosis but load iron I had to get blood taken by the half pint 3 times weekly to get this down to 50 took about 6 weeks I had to do this via private health care as it was around Covid I now donate blood 3 times yearly

Rosills1 profile image
Rosills1

you should discuss your TSH with your doc. It is v low.

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