# Vitamin D3 and insulin requirements
**URL:** https://forum.fudiabetes.org/t/vitamin-d3-and-insulin-requirements/9343
**Category:** Type 1 & LADA
**Created:** [February 18, 2020, 5:24am UTC](https://forum.fudiabetes.org/t/vitamin-d3-and-insulin-requirements/9343 "2020-02-18T05:24:29Z")
**Posts on this page:** 9
**Page:** 1
### Author:  [@lh378](https://forum.fudiabetes.org/u/lh378)
#### Post date: [February 18, 2020, 5:24am UTC](https://forum.fudiabetes.org/t/vitamin-d3-and-insulin-requirements/9343/1 "2020-02-18T05:24:29Z")
Has anyone noticed whether taking Vitamin D3 supplements has helped with BG managment? Does Vitamin D help our body use insulin more effectively?
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### Author:  [@Boerenkool](https://forum.fudiabetes.org/u/Boerenkool)
#### Post date: [February 18, 2020, 7:10am UTC](https://forum.fudiabetes.org/t/vitamin-d3-and-insulin-requirements/9343/2 "2020-02-18T07:10:38Z")
No, I haven’t noticed any effect.
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### Author:  [@RCA221](https://forum.fudiabetes.org/u/RCA221)
#### Post date: [February 18, 2020, 12:23pm UTC](https://forum.fudiabetes.org/t/vitamin-d3-and-insulin-requirements/9343/3 "2020-02-18T12:23:24Z")
What’s your theory on why it might? I just started taking it.
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### Author:  [@jim26](https://forum.fudiabetes.org/u/jim26)
#### Post date: [February 18, 2020, 2:25pm UTC](https://forum.fudiabetes.org/t/vitamin-d3-and-insulin-requirements/9343/4 "2020-02-18T14:25:57Z")
No, for me it doesn’t have any impact on BS.
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### Author:  [@docslotnick](https://forum.fudiabetes.org/u/docslotnick)
#### Post date: [February 18, 2020, 6:40pm UTC](https://forum.fudiabetes.org/t/vitamin-d3-and-insulin-requirements/9343/5 "2020-02-18T18:40:30Z")
When I was taking 50,000 units/ day rx once per week, I noticed no difference.
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### Author:  [@RCA221](https://forum.fudiabetes.org/u/RCA221)
#### Post date: [February 18, 2020, 7:02pm UTC](https://forum.fudiabetes.org/t/vitamin-d3-and-insulin-requirements/9343/6 "2020-02-18T19:02:30Z")
50,000 units yikes
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### Author:  [@docslotnick](https://forum.fudiabetes.org/u/docslotnick)
#### Post date: [February 18, 2020, 9:34pm UTC](https://forum.fudiabetes.org/t/vitamin-d3-and-insulin-requirements/9343/7 "2020-02-18T21:34:41Z")
That’s the normal therapeutic dose given by prescription. That’s ergocalciforal (D2).
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### Author:  [@RCA221](https://forum.fudiabetes.org/u/RCA221)
#### Post date: [February 18, 2020, 10:16pm UTC](https://forum.fudiabetes.org/t/vitamin-d3-and-insulin-requirements/9343/8 "2020-02-18T22:16:37Z")
I went on 2,000 units/daily a couple of weeks ago. Seems diminimus.
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### Author:  [@Eric](https://forum.fudiabetes.org/u/Eric)
#### Post date: [February 18, 2020, 10:52pm UTC](https://forum.fudiabetes.org/t/vitamin-d3-and-insulin-requirements/9343/9 "2020-02-18T22:52:34Z")
> [@lh378](#):
>
> Has anyone noticed whether taking Vitamin D3 supplements has helped with BG managment?
Not directly an answer to your question, but somewhat related…
Part of the link between vitamin D deficiency and Type 2 diabetes might not be causal. For example, people who have a vitamin D deficiency might also be more likely to have other behaviors that put them at higher risk for developing T2.
There are not a lot of studies that I know of. This one was small.
From this study:
> **CONCLUSION**
> Oral vitamin D had no effect on insulin sensitivity or resistance in pre-diabetes patients who were the first-degree relatives of T2DM patients. A randomized double-blind study with a longer duration of treatment is suggested.
> **[The effects of oral vitamin D on insulin resistance in pre-diabetic patients](https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3719226/)**
>
> Some epidemiological and interventional studies have shown the role of vitamin D on insulin secretion and resistance. A previous study in our center showed that intramuscular vitamin D decreases insulin sensitivity in pre-diabetic patients. We...