What is Vitamin A?

Category: Supplements

Most popular types: Beta-carotene Retinol NOW Vitamin A

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See also: Migrasol Vitamin Supplements

Vitamin A is an essential human nutrient and refers to a family of similarly shaped molecules: the retinoids. Although Vitamin A is found only in foods of animal origin, some fruits and vegetables contain compounds, called cartenoids, that can be converted into vitamin A by your body.

Reported purpose & perceived effectiveness
Purpose Patients Evaluations Perceived Effectiveness
General health 41 6
Amyotrophic lateral sclerosis 13 4
Fibromyalgia 3 1
Multiple sclerosis 3 1
Retinitis pigmentosa 3 1
Acne 2 1

Show all 28 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 0
Moderate 0
Mild 0
None 19

Commonly reported side effects and conditions associated with Vitamin A

Side effect Patients

Dosages

Based on patients currently taking Vitamin A

Dosage Patients
10,000 unt daily 3
15,000 unt daily 2
25,000 units daily 2
1 capsule(s) daily 1
1 intl units daily 1
1 other daily 1
8,000 unt monthly 1
2,500 mg daily 1
25,000 units weekly 1
5,000 intl units daily 1

See all 18 dosages

Why patients stopped taking Vitamin A

Multiple reasons could be selected

Reason Patients
Other 13
Did not seem to work 7
Doctor's advice 3
Expense 2
Personal research 2
Change in health plan coverage 1
Course of treatment ended 1
Side effects too severe 1
See all 25 patients who've stopped taking Vitamin A

Duration

Currently taking Vitamin A

Duration Patients
1 - 6 months 2
6 months - 1 year 2
1 - 2 years 6
2 - 5 years 5
5 - 10 years 2
10 years or more 5

Stopped taking Vitamin A

Duration Patients
Less than 1 month 1
1 - 6 months 8
6 months - 1 year 3
1 - 2 years 7
2 - 5 years 5
5 - 10 years 1
Adherence
Adherence Evaluations
Always 15
Usually 3
Sometimes 0
Never taken as prescribed 1
Burden
Burden Evaluations
Very hard to take 0
Somewhat hard to take 2
A little hard to take 2
Not at all hard to take 15
Cost per month
Cost per month Evaluations
$200+ 0
$100-199 0
$50-99 1
$25-49 0
< $25 11
Not specified 7
Last updated:

7 patient evaluations for Vitamin A

Jul 7, 2017 (Started May 15, 2016)

  • Effectiveness
    Can’t tell (for amyotrophic lateral sclerosis)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 10,000 unt Daily
Advice & Tips: Aids the immune system and identifies toxins
Cost: < $25 monthly

Oct 10, 2016 (Started May 15, 2016)

  • Effectiveness
    Can’t tell (for amyotrophic lateral sclerosis)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 10,000 unt Daily
Cost: < $25 monthly

  • 0 helpful marks

Jan 10, 2014 (Started Jul 25, 2013)

  • Effectiveness
    Can’t tell (for Improved vision)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take

Aug 15, 2012 (Started Jul 25, 2013)

  • Effectiveness
    None (for Improved vision)
  • Side effects
    None
  • Adherence
    Never taken as prescribed
  • Burden
    Not at all hard to take

  • 0 helpful marks

Apr 12, 2013 (Started Mar 24, 2013)

  • Effectiveness
    Moderate (for bronchitis)
  • Side effects
    None
  • Adherence
    Always
  • Burden
    Not at all hard to take
Dosage: 1500 intl units Daily
Cost: < $25 monthly

  • 0 helpful marks
Last updated:
Showing 3 of 7 patient evaluations for Vitamin A