Calciferol: benefits by goal, the dosage that worked, and the supplements ranked
What the 76 human studies of calciferol we graded show for each goal, the dose that worked, and the products that hold it. This page is educational, not medical advice.
Calciferol benefits, by goal: what the studies show
Members OnlyThe top 1 of 1 goals
2 of these 76 human studies gave calciferol by injection, not by mouth.
| Goal | What the studies show | Studies | Dose that worked |
|---|---|---|---|
| Blood Sugar | Improved in studies 76 studies, 27 showed an improvement, 19 found none, 25 pooled analyses, 2 by drip, injection or inhaler | 76 | 1,000 IU |
Calciferol supplements, ranked by the human studies
Members OnlyThe top 1 of 1
Calciferol dosage: how much per day
The dose that worked in the studies, and the upper limit
The studies taken by mouth that showed an improvement gave 1,000 to 200,000 IU a day.
Biohacker panel
Members OnlyWhat our 10 biohackers say about calciferol
Questions people ask
Members OnlyAnswered from the figures on this page
What is calciferol good for?
By the human studies we graded, calciferol shows an improvement for blood sugar.
Calciferol for blood sugar: what do the studies show?
In the human studies of calciferol we graded for blood sugar: 76 studies, 27 showed an improvement, 19 found none, 25 pooled analyses, 2 by drip, injection or inhaler. The dose that worked: 1,000 IU a day.
How much calciferol per day?
The studies taken by mouth that showed an improvement used 1,000 to 200,000 IU a day.
Can I take calciferol with my meds?
Some supplements can change how meds work or are absorbed. Members have every product checked against the meds in their Health Profile before it joins their protocol.
Educational, not medical advice. Figures come from the human studies on PubMed we have graded; a study counts for a form when it names the form it used. Updated as new studies arrive. How we grade →
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