What is Vitamin D3 (cholecalciferol)?

Category: Supplements

Most popular types: Spring Valley Vitamin D3 Vitamin D3 Prescription (cholecalciferol) Nature's Way Vitamin D3 Show all

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See also: Calcet Petites Dual Calcium + Vitamin D3 Crampex Healtheries Fish Oil 1500 and Vitamin D3 Mebolic Nature Made Triple Flex with D3

Vitamin D3 is the form of vitamin D called cholecalciferol. Cholecalciferol is the most widely known of the vitamin D series and is a fat soluble vitamin that is stored to some degree in the body. It is used as a dietary supplement, for the treatment of vitamin D deficiency, or to prevent a deficiency.

Reported purpose & perceived effectiveness
Purpose Patients Evaluations Perceived Effectiveness
Vitamin D deficiency 1035 210
Multiple sclerosis 332 111
General health 221 67
Fatigue 45 17
Fibromyalgia 45 15

Show all 145 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 Percentage
Severe 9
Moderate 8
Mild 9
None 533

Commonly reported side effects and conditions associated with Vitamin D3 (cholecalciferol)

Side effect Patients Percentage
Diarrhea 2
Dizziness 2
Fatigue 2
Itchy skin 2
Nausea 2
Abdominal bloating 1

Show all 19 reported side effects

Dosages

Based on patients currently taking Vitamin D3 (cholecalciferol)

Dosage Patients Percentage
1,000 unt daily 14
5000 intl units daily 14
1000 intl units daily 12
2000 intl units daily 12
2,000 unt daily 12
5,000 unt daily 9
10000 intl units daily 5
400 intl units daily 3
800 intl units daily 3
2,000 unt twice daily 3

See all 63 dosages

Why patients stopped taking Vitamin D3 (cholecalciferol)

Multiple reasons could be selected

Reason Patients Percentage
Other 53
Course of treatment ended 34
Doctor's advice 20
Did not seem to work 15
Side effects too severe 13
Personal research 9
Expense 8
Change in health plan coverage 1
See all 142 patients who've stopped taking Vitamin D3 (cholecalciferol)

Duration

Currently taking Vitamin D3 (cholecalciferol)

Duration Patients Percentage
1 - 6 months 2
6 months - 1 year 3
1 - 2 years 8
2 - 5 years 35
5 - 10 years 67
10 years or more 41

Stopped taking Vitamin D3 (cholecalciferol)

Duration Patients Percentage
Less than 1 month 13
1 - 6 months 45
6 months - 1 year 24
1 - 2 years 20
2 - 5 years 31
5 - 10 years 13
10 years or more 3
Adherence
Adherence Evaluations Percentage
Always 431
Usually 99
Sometimes 23
Never taken as prescribed 6
Burden
Burden Evaluations Percentage
Very hard to take 2
Somewhat hard to take 14
A little hard to take 49
Not at all hard to take 494
Cost per month
Cost per month Evaluations Percentage
$200+ 0
$100-199 0
$50-99 0
$25-49 17
< $25 285
Not specified 257
Last updated:

56 patient evaluations for Vitamin D3 (cholecalciferol)

Jul 24, 2020 (Started Jan 25, 2012)

  • Effectiveness
    Moderate (for major depressive disorder)
  • Side effects
    None
  • Adherence
    Usually
  • Burden
    Not at all hard to take
Dosage: 3000 intl units Daily
Advice & Tips: I was told by my GP to take 5000iu a day because I am consistently low on labs. I notice a certain lift or brightness when I take the 5000 especially after forgetting for a few days and then starting up again. I use a "happy light" also though.

  • 0 helpful marks

Nov 4, 2017 (Started Jan 15, 2011)

  • Effectiveness
    Slight (for flexion: a bent or curved posture)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 3000 intl units Daily
Cost: < $25 monthly

Aug 10, 2017 (Started Jan 15, 2011)

  • Effectiveness
    Can't tell (for flexion: a bent or curved posture)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 3000 intl units Daily
Advice & Tips: NO CHANGES
Cost: < $25 monthly

May 25, 2017 (Started Jan 15, 2011)

  • Effectiveness
    None (for flexion: a bent or curved posture)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 3000 intl units Daily
Advice & Tips: No changes
Cost: < $25 monthly

Jan 17, 2017 (Started Jan 15, 2011)

  • Effectiveness
    None (for flexion: a bent or curved posture)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 3000 intl units Daily
Advice & Tips: No change
Cost: < $25 monthly

Oct 10, 2016 (Started Jan 15, 2011)

  • Effectiveness
    Can't tell (for flexion: a bent or curved posture)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 3000 intl units Daily
Cost: < $25 monthly

Sep 14, 2016 (Started Jan 15, 2011)

  • Effectiveness
    None (for flexion: a bent or curved posture)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    A little hard to take
Dosage: 3000 intl units Daily
Advice & Tips: No change
Cost: < $25 monthly

Jul 13, 2016 (Started Jan 15, 2011)

  • Effectiveness
    None (for flexion: a bent or curved posture)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 3000 intl units Daily
Advice & Tips: NO CHANGES
Cost: < $25 monthly

  • 0 helpful marks

Jul 21, 2017 (Started Nov 10, 2015)

  • Effectiveness
    Can't tell (for vitamin D deficiency)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 800 intl units Daily
Cost: < $25 monthly

  • 0 helpful marks
Last updated:
Showing 3 of 56 patient evaluations for Vitamin D3 (cholecalciferol)