Vitamin B12 deficiency

We’re all in this for good.

By sharing your stories and data, you will:
  • help each other live better and uncover the best ways to manage your health today
  • help researchers shorten the path to new treatments tomorrow

How much good can your data do? A whole lot, as co-founder Jamie Heywood explains in this video.

What is vitamin B12 deficiency?

Vitamin B12, a water soluble vitamin, helps in the formation of red blood cells and in the maintenance of the central nervous system. Deficiency is due to inadequate dietary intake or impaired absorption of Vitamin B12 resulting in megaloblastic anemia due to inhibition in red blood cell production.

Common symptoms reported by people with vitamin B12 deficiency

Common symptoms
How bad it is
What people are taking for it

Reports may be affected by other conditions and/or medication side effects. We ask about general symptoms (anxious mood, depressed mood, fatigue, pain, and stress) regardless of condition.
Last updated:

Treatments taken by people with vitamin B12 deficiency

Treatment name(s)
Type
How many have tried
Tried for
Treatment name(s)

(NatureMade Vitamin B12)
Type
Supplement
How many have tried
85
Tried for
vitamin B12 deficiency (85) fatigue (3)
Treatment name(s)

(Medivitan)
Type
Prescription Drug
How many have tried
50
Tried for
vitamin B12 deficiency (49) fatigue (9)
Treatment name(s)

(Folic Acid Prescription)
Type
Supplement
How many have tried
23
Tried for
vitamin B12 deficiency (23)
Treatment name(s)

(Ultram)
Type
Prescription Drug
How many have tried
20
Tried for
pain (20)
Treatment name(s)

(Neurontin)
Type
Prescription Drug
How many have tried
18
Tried for
pain (17) depressed mood (1)
Treatment name(s)

(Norco)
Type
Prescription Drug
How many have tried
16
Tried for
pain (16)
Treatment name(s)

(Cymbalta)
Type
Prescription Drug
How many have tried
12
Tried for
depressed mood (9) pain (3)
Treatment name(s)

(Klonopin)
Type
Prescription Drug
How many have tried
10
Tried for
anxious mood (10)
Treatment name(s)

(Valium)
Type
Prescription Drug
How many have tried
10
Tried for
anxious mood (10)
Treatment name(s)

(Vistaril)
Type
Prescription Drug
How many have tried
10
Tried for
anxious mood (10)

Data from patients with vitamin B12 deficiency, who reported starting treatments within the last 5 years.
Last updated:

Compare treatments taken by people with vitamin B12 deficiency

Treatment name(s)
Perceived effectiveness
Side effects
Total evaluations
Tried for
Treatment name(s)

(NatureMade Vitamin B12)
Perceived effectiveness
for vitamin B12 deficiency (26 evaluations)
Side effects
diarrhea
Total evaluations
30
Tried for
vitamin B12 deficiency (85) fatigue (3)
Treatment name(s)

(Medivitan)
Perceived effectiveness
for vitamin B12 deficiency (32 evaluations)
Side effects
headaches
Total evaluations
34
Tried for
vitamin B12 deficiency (49) fatigue (9)
Treatment name(s)

(Folic Acid Prescription)
Perceived effectiveness
for vitamin B12 deficiency (3 evaluations)
Side effects
Total evaluations
4
Tried for
vitamin B12 deficiency (23)
Treatment name(s)

(Ultram)
Perceived effectiveness
for pain (13 evaluations)
Side effects
nausea itching 7 more
Total evaluations
13
Tried for
pain (20)
Treatment name(s)

(Neurontin)
Perceived effectiveness
for pain (15 evaluations)
Side effects
sleepiness anxious mood 13 more
Total evaluations
18
Tried for
pain (17) depressed mood (1)
Treatment name(s)

(Norco)
Perceived effectiveness
for pain (8 evaluations)
Side effects
chronic constipation constipation 1 more
Total evaluations
8
Tried for
pain (16)
Treatment name(s)

(Cymbalta)
Perceived effectiveness
for depressed mood (4 evaluations)
Side effects
anger brain zaps 5 more
Total evaluations
8
Tried for
depressed mood (9) pain (3)
Treatment name(s)

(Klonopin)
Perceived effectiveness
for anxious mood (9 evaluations)
Side effects
drowsiness apathy 6 more
Total evaluations
9
Tried for
anxious mood (10)
Treatment name(s)

(Valium)
Perceived effectiveness
for anxious mood (1 evaluation)
Side effects
agitation
Total evaluations
1
Tried for
anxious mood (10)
Treatment name(s)

(Vistaril)
Perceived effectiveness
for anxious mood (3 evaluations)
Side effects
daytime sleepiness excessive daytime sleepiness (somnolence)
Total evaluations
3
Tried for
anxious mood (10)
  • Major
  • Moderate
  • Slight
  • None
  • Can't tell
  • Severe
  • Moderate
  • Mild
  • None

Data from patients with vitamin B12 deficiency, who reported starting treatments within the last 5 years.
Last updated:

Who has vitamin B12 deficiency on PatientsLikeMe?


Age
Age Proportion # of patients
<20 3
20s 56
30s 151
40s 332
50s 307
60s 154
70+ 40
Age at first symptom
Age at first symptom Proportion # of patients
0-19 years 35
20-29 years 80
30-39 years 124
40-49 years 104
50-59 years 48
60-69 years 7
70+ years 2

Distribution of sex

Sex
Sex Proportion # of patients
Male 134
Female 911

Diagnosis status
Diagnosis status Proportion # of patients
Diagnosed 603
Not Diagnosed 28

These charts show data from vitamin B12 deficiency patients who have completed their condition history
Last updated: