To interpret your thyroid results we need to know if you have a diagnosis of a thyroid condition and if you are on any thyroid hormone replacement.
A normal healthy person would have a TSH of no more than about 2, often nearer 1, with FT4 around mid-range. If you are not diagnosed with a thyroid condition they your results are normal for a healthy person.
If you are on thyroid hormone replacement for hypothyroidism then there is room for an increase in your dose of Levo.
Your thyroid antibodies are nice and low so do not suggest autoimmune thyroid diseae (aka Hashimoto's).
Testing magnesium is unreliable. About 99% of magnesium is stored in bone, muscles and soft tissues, leaving about 1% in the blood. So testing what's in the blood isn't giving an accurate picture of our magnesium status.
A red cell magnesium test is the better indicator of magnesium status, not the standard serum magnesium test.
I can't comment on cortisol test, maybe Hidden can if she is around, but you need to say what time you did the test.
What about Vit D, B12, Folate and Ferritin? This looks like a Blue Horizon test, possible Thyroid Premium Gold which includes these nutrient tests.
Thank you so much SeasideSusie for digging into the results.
Very interesting about the unreliability of the serum Magnesium test.
To follow up on your notes:
1. I am not being treated for thyroid and have not been diagnosed with a thyroid disease. The reason for the tests was to explore potential causes for my ever worsening macrocytosis (previous post of mine has details). So, from this, I take it that my thyroid results are normal and not a cause for my high MCV.
2. Cortisol was measured on a test at 3pm
3.
Ferritin always bottom levels for me, latest is 13 [ref range: 10-120]. --> I'm supplementig now with 305mg ferrous fumarate since it was only 10 in July (I've had levels as low as 8 for many years)
Vit D is 70.9 [ref range: 70-150] --> result of supplementation of 400iu D3 per day
B12 is 593 [ref range: 160-800] --> result of supplementation of 1000mcg Methylcobalamin 2x week
As your ferritin has always been low, has this been thoroughly investigated? Do you have iron deficiency? Has an iron infusion ever been mentioned?
You could do with more Vit D, 400iu is just a maintenance dose for a child, it's not going to raise your level. The Vit D Council recommends a level of 125nmol/L and the Vit D Society recommends a level of 100-150nmol/L.
To reach the recommended level from your current level, based on the Vit D Council's suggestions you could supplement with 3,000iu D3 daily and retest after 3 months.
Once you reach the recommended level 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:
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.
As you are taking B12, are you also taking a B Complex to keep all the B vitamins in balance? If not you should be. Is the unit of measurement ng/L or pg/ml or pmol/L. If ng/L or pg/ml then once it's reached 550 a B Complex alone should be enough. Consider Thorne Basic B or Igennus Super B.
On Iron. The only thing I know is that I have low ferritin. I am not anemic. Every time my ferritin drops below 10, I get new oral iron supplements. They never fix my levels. I'm always hovering low levels of normal or dropping down to 8. How does one diagnose iron deficiency without anemia? What else should be analyzed?
This is my latest iron panel:
Serum iron level
: 35 [ref range: 9-30] --> results of 6 days of 2x 305mg ferrous fumarate per day
Serum transferrin level
: 2.9 [ ref range: 1.7 - 3.4]
Transferrin saturation index
: 48 % [16 - 55]
Haematocrit: 0.398 [0.35 - 0.45]
Prior to the most recent iron supplementation:
Serum iron level
: 20 [ref range: 9-30]
Serum transferrin level
: 2.9 [ ref range: 1.7 - 3.4]
Transferrin saturation index
: 27 % [16 - 55]
Haematocrit: 0.41 [0.35 - 0.45]
Yes, just recently my haematologist briefly mentioned getting me iron other than oral (I guess an infusion). What are the side effects of an infusion? I have read of iron-induced tumors (at least on rats)...
Thanks for the notes on D3, K2 and Magnesium. Notes taken on my side.
On B12, my levels are ng/L. Do you have any writings to point me to on the need to take to take other vitamins to balance them out? I'd like to learn more
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Would appreciate any advice on recent test results please?
Blood results any comments appreciated
your wonderful insights to my results would be very much appreciated. hoping to see GP on Monday.
Any input re results from blood tests would be appreciated by me.
Advice would be appreciated on latest results please. 
