Adcal - d3

[Vivsavage]

I had a blood test done on Monday checking my t4 and vitamin d had a phone call today to tell me my gp is going to leave my Levo as it is but he's putting me on adcal - d3 I've spoke to a few friends who are on adcal and they are on 750 mg a day I've been put on 1500 twice a day ??? Xxxx

[shaws Administrator]

It just goes to show how important a Vit D blood test is. Several members have been found to be deficient, you are another. It will be interesting if you post your results.

Some GP's refuse to do Vit D test/

[Vivsavage]

Hi I didn't get to speak to the gp my brain fog decided to make a show lol he spoke to my husband and said its awfully low and that's why he's putting me on 3000 mg a day ? I will try to get a print out but it's like getting blood out of a stone lol x

[Redditch]

hello.... you need D3 to absorb your thyroxine so he's right.. and Harvard profs say that thyroid patients should be on 8000 I U a day so don't worry, yours is better than your friends.

I have 800 prescribed adcal but take an extra 5000 IU of D3 wot I got off the internet and I started feeling MUCH better as soon as I started THAT.. it's very hard to overdose on D... you'd need 80,000 a day for 4 months to show signs... but it's quite easy to overdo your calcium... they stick calcium in with the D because lack of D causes lack of calcium and Calcium helps absorbtion of D3...

[helvella Administrator Thyroid UK in reply to Redditch]

Are you sure that calcium helps absorption of D3?

Certainly vitamin D helps with absorption of calcium.

Some people cannot take significant quantities of vitamin D.

[Redditch in reply to helvella]

Yep, I'm sure the relationship is symbiotic, although not obliate.

Calcium is the most abundant cation in the body, appearing in combination with phosphorus in the ratio 2:1.5. It is essential for the formation of bones and teeth, blood clotting, normal muscle and nerve activity, endocytosis and exocytosis, cellular motility, chromosome movement prior to cell division, glycogen metabolism, and synthesis and release of neurotransmitters.

Interesting that you say some people cannot take significant quantities of D3 because if you had hypercalcaemia or metastatic calcification your GP certainly wouldn't have prescribed any D at all. ..and if you had primary hyperparathyroidism you wouldn't be this particular hyPO patient, now would you?

The major biological functions of vitamin D are to regulate calcium and phosphate absorption and metabolism, and to maintain plasma calcium levels via bone resorption and formation

o vitamin D supplementation is only contraindicated in patients with hypercalcaemia or metastatic calcification relative contraindications include primary hyperparathyroidism, renal stones and severe hypercalciuria patients with mild to moderate renal failure or known to have mild hypercalciuria should be supervised carefully when taking vitamin D

o in patients with a history of renal stones, urinary calcium excretion should be measured to exclude hypercalciuria, a problem which requires specialist referral

[helvella Administrator Thyroid UK in reply to Redditch]

Thanks.

And there are people with no obvious cause who cannot tolerate vitamin D in anything more than "baby" doses. Maybe there is no documented contraindication but they cannot.

Surprised the contraindications do not include sarcoidosis and a general warning about some other granulomatous disorders.

[Jackie]

Hi That is good, providing you have had a calcium test first. The corrected calcium must always be in range as an electrolyte. D can raise the calcium, even to out of range, so D treatment has to always consider this.

Best wishes,

Jackie