What is Vitamin D?

Category: Supplements

Most popular types: Vitamin D Prescription NatureMade Vitamin D CVS Vitamin D Show all

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See also: Migrasol

Vitamin D is a fat-soluble vitamin that was isolated in 1930 and named calciferol. Since then more metabolites have been found and the two major forms of this vitamin are now known to be vitamin D2 (ergocalciferol) and vitamin D3 (cholecalciferol).

Reported purpose & perceived effectiveness
Purpose Patients Evaluations Perceived Effectiveness
Vitamin D deficiency 1,433 362
General health 828 184
Multiple Sclerosis 661 130
Fibromyalgia 131 33
Fatigue 128 35
Osteopenia 119 35

Show all 177 reasons taken


  • Major
  • Moderate
  • Slight
  • None
  • Can't tell

Side effects

Side effects as an overall problem

Side effects as an overall problem
Severity Evaluations
Severe 14
Moderate 12
Mild 32
None 684

Commonly reported side effects and conditions associated with Vitamin D

Side effect Patients
Nausea 5
Dizziness 3
Headaches 3
Abdominal bloating 2
Bloating 2
Depressed mood 2

Show all 42 reported side effects

Dosages

Based on patients currently taking Vitamin D

Dosage Patients
5,000 intl units daily 56
2,000 intl units daily 54
1,000 intl units daily 48
4,000 intl units daily 22
50,000 intl units weekly 21
1,000 mg daily 19
400 intl units daily 16
5,000 mg daily 16
400 units daily 14
10,000 intl units daily 11

See all 176 dosages

Why patients stopped taking Vitamin D

Multiple reasons could be selected

Reason Patients
Other 101
Course of treatment ended 88
Doctor's advice 54
Did not seem to work 37
Expense 27
Personal research 18
Side effects too severe 12
Change in health plan coverage 1
See all 301 patients who’ve stopped taking Vitamin D

Duration

Currently taking Vitamin D

Duration Patients
1 - 6 months 16
6 months - 1 year 34
1 - 2 years 58
2 - 5 years 174
5 - 10 years 269
10 years or more 34

Stopped taking Vitamin D

Duration Patients
Less than 1 month 23
1 - 6 months 99
6 months - 1 year 59
1 - 2 years 56
2 - 5 years 52
5 - 10 years 15
10 years or more 1
Adherence
Adherence Evaluations
Always 516
Usually 160
Sometimes 40
Never taken as prescribed 26
Burden
Burden Evaluations
Very hard to take 7
Somewhat hard to take 26
A little hard to take 79
Not at all hard to take 630
Cost per month
Cost per month Evaluations
$200+ 2
$100-199 0
$50-99 1
$25-49 19
< $25 394
Not specified 326
Last updated:

96 patient evaluations for Vitamin D

585 members have decided to share their profiles only with other members of PatientsLikeMe.

margie99
70573 thumb
margie99
Sex: F
Data Quality: 3 stars
On
Mouth/throat: mild
Arms: mild
Chest: mild
Legs: moderate
I am: g
I have:
Parkinson's

See margie99's full Vitamin D history

Oct 10, 2016 (Started Jan 15, 2011)

  • Effectiveness
    Slight (for Parkinson's Disease)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 5000 mcg Weekly

  • 0 helpful marks
Wayne Lampe
247 thumb
Wayne Lampe
Sex: M
Data Quality: 2 stars
Bulbar: moderate
Arms: severe
Chest: mild
Legs: moderate
I am: vg
I have:
ALS

See Wayne Lampe's full Vitamin D history

Aug 27, 2016 (Started Dec 15, 2012)

  • Effectiveness
    Moderate (for Vitamin D deficiency)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 10000 intl units Daily
Advice & Tips: vitamin d level tested every 6 months

  • 0 helpful marks
rainydaygirl
64355 thumb
rainydaygirl
Gender: F
Data Quality: 3 stars
Pain: Some
Fatigue: All
Sleep: All
Stiffness: Little
function: None
external_stress: Some
Stickman: most
Description:F73y
FM:27y Dx
CFS:8y Dx
I am: n
I have:
Fibromyalgia

See rainydaygirl's full Vitamin D history

Feb 5, 2016 (Started Jan 15, 2014)

  • Effectiveness
    Can’t tell (for Vitamin D deficiency)
  • Effectiveness
    Major (for Seasonal Affective Disorder)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    A little hard to take
Dosage: 400 intl units Daily
Advice & Tips: Really improves my outlook in the dark, often gloomy days of winter. 

  • 0 helpful marks
Last updated:
Showing 3 of 96 patient evaluations for Vitamin D