weightloss ft3: hello, I cant loose at all... - Thyroid UK

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weightloss ft3

Meavis profile image
18 Replies

hello,

I cant loose at all weight. Did try everything you can do.

my. tsh is 0.5. 0.3_4.8

Ft4. 15. 12-23

Ft3 is 5.2. 3.5- 6.5

vitamin d. 103. Nmol

folate 30

ferritin 58. I am suplementing

is my ft3 maybe the problem that is causing me to not loose weight at all?



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Meavis
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18 Replies
SeasideSusie profile image
SeasideSusieRemembering

Meavis

is my ft3 maybe the problem that is causing me to not loose weight at all?

Unfortunately we can't say because you haven't included the reference ranges for your results and we don't know where in it's range your FT3 falls. From most FT3 ranges we see here, eg 3.5-6.5 or 3.1-6.8 - then your FT3 result isn't particularly low, but it has to be looked at alongside the FT4 result as well to see how well (or not) you are converting T4 to T3. So if you can add the reference ranges for all your results we should be able to comment further.

Meavis profile image
Meavis in reply to SeasideSusie

I am not a good converter at all. This is highst ft3 ever amd dat is because I did ad Ndt.

SeasideSusie profile image
SeasideSusieRemembering in reply to Meavis

Meavis

tsh:0.5. (0.3_4.8)

Ft4: 15. (12-23) = 33.33% through range

Ft3: 5.2. (3.5- 6.5) = 56.67% through range

(Calculator here: thyroid.dopiaza.org/ )

This is highst ft3 ever amd dat is because I did ad Ndt

So exactly what thyroid meds are you taking - Levo plus NDT?

What doses are you taking?

When did you take your last doses before the test - last doses should be:

Levo - 24 hours before test

NDT - split dose the day before into 2 or 3 parts and take last part 8-12 hours before test

Vit D is good.

Folate appears to be good.

Ferritin - a work in progress and some experts say that the optimal ferritin level for thyroid function is 90-110ug/L.

Meavis profile image
Meavis in reply to SeasideSusie

Dutch ndt 105 grainEuthyrox ft4. 25 mcg

Did take 24 hours before t4

Did split ndt and the last dosage it take it 13 hours before test.

SeasideSusie profile image
SeasideSusieRemembering in reply to Meavis

Dutch ndt 105 grainEuthyrox ft4. 25 mcg

So that would be 105mg NDT = 1.75grain.

Going by the average hormone content of NDT being 38mcg T4 and 9mcg T3 per 1 grain then you are getting from your NDT 66.5mcg T4 and 15.75mcg T3.

Add your 25mcg Euthyrox and you're getting a total of 91.5mcg T4 and 15.75mcg T3.

When we take combination hormone replacement like this, it's very individual where we need our FT4 and FT3. Some are fine with low FT4 as long as FT3 is in the upper part of it's range. Some of us need both FT4 and FT3 over half way through range.

It might be worth you trying a higher FT4 level and see how you feel. Taking more Euthyrox will increase your FT4 and will also increase your FT3 level depending on how much natural conversion you have. So maybe add an extra 25mcg Euthyrox, see what that does to your levels and how you feel.

Also continue working on raising your ferritin level as that is important for your thyroid hormone to work properly.

I'd give it 8-10 weeks and retest.

DippyDame profile image
DippyDame

Just a few thoughts...

T3 is not taken for weight loss.A small dose may be added to levo to treat some forms of hypothyroidism

Poor T4 to T3 conversion being the main one

To judge your conversion rate we need to use labs before the addition of T3 .....high FT4 with low FT3.

Weight gain can be a symptom of hypo.

Correct medication can resolve weight gain

Some people have a form of Thyroid Hormone Resistance ( as I have) and we need a higher dose of T3 to overcome this.

That higher dose is likely to be dangerous for people who do not have RTH

Overmedication with T3 to achieve weight loss is dangerous ...and should be avoided

There can be a number of reasons why it is difficult to shift extra weight

What have you done so far to lose weight?

How much weight do you need to lose?

What, and how much replacement thyroid hormone are you taking?

Meavis profile image
Meavis in reply to DippyDame

It is not for weightloss only! Is because I am Hypo and feel that why. The weight gain is a symptom.

I have had on levo only tsh. 1. Ft4. 22. And ft3. 3.9. Always very low.

What is rth? I am not trying to overmedication it is actualy very difficult to rais my ft3.

I take 25 mcg euthyrox and 105 ndt.

I ttried a lot and dont loose a pound. I eat low carb now no dairy just to no make my weight worse. Cant eat carbs at all.

DippyDame profile image
DippyDame in reply to Meavis

Where does ft3. 3.9. In your reply to me come from?

The following are the numbers you gave us in your post.

Ft3: 5.2. (3.5- 6.5) = 56.67% through rangeNot very low! But depending on other labs there may be room to raise T3 dose

I wasn't suggesting you were trying to overdose....just urging caution when dosing!

RTH ...abbreviation for Thyroid Hormone Resistance which I referred to in my reply.....unlikely to refer to your situation.

I used it as an example of a need for a large dose of T3....sorry, maybe confused the issue.

To analyse your Thyroid function you need

TSH, FT4, FT3, vit D, vit B12, folate ferritin and thyroid antibodies TPO and TG

thyroiduk.org/thyroid-funct... for general info

You need to be on a settled dose of hormone for at least 6 weeks, ideally longer, before testing.

SeasideSusie has given you good advice, that should help

Meavis profile image
Meavis in reply to DippyDame

Ft3. 3.9. Is an average without using ndt. That why I started using ndt. I said that because I thought you said you need good reason to use t3.

Any way I will up my dose to ft3 at 75% and see. If that will help.

Gingernut44 profile image
Gingernut44 in reply to DippyDame

DD, the OP said her FT3 was usually low at 3.9 when on Levo only.

DippyDame profile image
DippyDame in reply to Gingernut44

What the OP said above was Ft3. 3.9. Is an average without using ndt.

Not ...her FT3 was usually low at 3.9 when on Levo only.

Average can't be used as a dosing guide

Gingernut44 profile image
Gingernut44 in reply to DippyDame

I don’t really want to argue with you but your response to her previous reply was “where does FT3 3.9 in your reply come from”. I’m just pointing out that she said “I have had on levo only tsh 1, FT4 22 and FT3 3.9. Always very low”That’s where it came from.

DippyDame profile image
DippyDame in reply to Gingernut44

It's OK, I have no wish to argue either!!

I understood what Maevis was saying when she answered that question

In her reply she explained FT3.9 as an average number - not an actual result - which indicated that she had more than one FT3 lab result on levo.

Though I'm not sure an average result would help much...

Anyway she is now aiming to raise her FT3 which is the important thing

Stay safe in the heat.

Meavis profile image
Meavis in reply to DippyDame

I had a lot of results with levo. Most where like 3.9. 3.7. 3.8. 4. Very low never higher than 4.

Meavis profile image
Meavis in reply to DippyDame

I meant my low ft3. 3.9 average is with levo medication only. I get low tsh 75%ft4 or higher amd ft3 rock bottom.

DippyDame profile image
DippyDame in reply to Meavis

I understood you must have had several labs on levo mono when you said " average"!Raising your FT3 should raise your metabolism and help with weight reduction

Good luck

Gingernut44 profile image
Gingernut44

If these were my results, I would increase Euthrox to 50 mcg in the hope that a rise in FT4 would help with symptoms. That would also probably raise your FT3 a little. Retest in 6/8 weeks.

Meavis profile image
Meavis in reply to Gingernut44

Thanks that is what I am going to do. Hoping for beter result.

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