Thyroid UK

Vits and mins

Ferritin, folate, vitamin D and vitamin B12 are all below. Any feedback appreciated.

Ferritin - 76 (15 - 150) put back on iron tablets due to findings of iron deficiency in iron panel

Folate - >20 (2.5 - 19.5) stopped taking folic acid

Vitamin B12 - 201 (180 - 900) being investigated for pernicious anaemia

Total 25 OH vitamin D - 38.8

(<25 severe vitamin D deficiency. Patient may require pharmacological preparations

25 - 50 vitamin D deficiency. Supplementation is indicated

50 - 75 vitamin D may be sub-optimal, and long-term may lead to clinical effects. Advice on safe sun exposure and diet. Supplementation may be indicated

>75 adequate vitamin D) taking 800iu tablets

2 Replies

Olivia_89 Your ferritin level is just about acceptable at 76. I've seen it said that for females 100-130 is best. As you say you've been 'put back on iron supplements' do you mean that they were prescribed before then they were stopped when you reached a certain level, then it plummeted and you've restarted the supplements? If so, that sort of yo-yoing isn't doing you any good. When you've reached a good level it needs to be maintained, either by a maintenance dose of iron or by eating liver once a week, and to ensure it never goes below 70 again. An absolute minimum of 70 is needed for thyroid hormone to work, our own or replacement.

When taking iron tablets, take each tablet with 1000mg Vit C to aid absorption and help prevent constipation. Take iron 4 hours away from thyroid meds.

For your folate and B12 results, it would be a good idea to go over to the Pernicious Anaemia Society forum here on Health Unlocked, explain what has been happening, your current results, the fact that you've been taken off folic acid, etc. They may have further advice or you.

As for your Vit D level being 38.8, your 800iu supplement isn't anywhere near enough to raise it. It's not even a maintenance dose for someone at a decent level. The recommended level is 100-150nmol/L. You would be better off getting your own. Buy some 5000iu softgels - this one is good and take one daily. Retest in the Spring and when you reach the recommended level then reduce to one alternate days as a maintenance dose.

When taking D3 there are important co-factors needed

D3 aids absorption of calcium from food and K2-MK7 directs it to bones and teeth rather than arteries and soft tissues. D3 and K2 are fat soluble so should be taken with the fattiest meal of the day. Take D3 four hours away from thyroid meds.

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

1 like

Yes I was previously on iron supplements for 5 years. My ferritin was originally 15 and it was raised to 198 on the tablets over those 5 years and then the iron was stopped.


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