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)

(Vitamin B12 Prescription (cyanocobalamin))
Type
Supplement
How many have tried
56
Tried for
vitamin B12 deficiency (56) fatigue (2)
Treatment name(s)

(Medivitan)
Type
Prescription Drug
How many have tried
40
Tried for
vitamin B12 deficiency (39) fatigue (7)
Treatment name(s)

(Neurontin)
Type
Prescription Drug
How many have tried
12
Tried for
pain (10) anxious mood (1)
1 more
Treatment name(s)

(Ultram)
Type
Prescription Drug
How many have tried
12
Tried for
pain (12)
Treatment name(s)

(Norco)
Type
Prescription Drug
How many have tried
11
Tried for
pain (11)
Treatment name(s)

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

(Tylenol)
Type
Over the Counter Drug
How many have tried
9
Tried for
pain (9)
Treatment name(s)

(Abilify)
Type
Prescription Drug
How many have tried
8
Tried for
depressed mood (8)
Treatment name(s)

(BuSpar)
Type
Prescription Drug
How many have tried
8
Tried for
anxious mood (6) depressed mood (3)
Treatment name(s)

(Folic Acid Prescription)
Type
Supplement
How many have tried
8
Tried for
vitamin B12 deficiency (8)

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)

(Vitamin B12 Prescription (cyanocobalamin))
Perceived effectiveness
for vitamin B12 deficiency (27 evaluations)
Side effects
diarrhea
Total evaluations
31
Tried for
vitamin B12 deficiency (56) fatigue (2)
Treatment name(s)

(Medivitan)
Perceived effectiveness
for vitamin B12 deficiency (20 evaluations)
Side effects
Total evaluations
21
Tried for
vitamin B12 deficiency (39) fatigue (7)
Treatment name(s)

(Neurontin)
Perceived effectiveness
for pain (7 evaluations)
Side effects
jerky movements low testosterone 4 more
Total evaluations
10
Tried for
pain (10) anxious mood (1)
1 more
Treatment name(s)

(Ultram)
Perceived effectiveness
for pain (7 evaluations)
Side effects
nausea brain fog 4 more
Total evaluations
7
Tried for
pain (12)
Treatment name(s)

(Norco)
Perceived effectiveness
for pain (7 evaluations)
Side effects
chronic constipation itching
Total evaluations
7
Tried for
pain (11)
Treatment name(s)

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

(Tylenol)
Perceived effectiveness
No evaluations
Side effects
Total evaluations
2
Tried for
pain (9)
Treatment name(s)

(Abilify)
Perceived effectiveness
for depressed mood (2 evaluations)
Side effects
anxious mood drooling 1 more
Total evaluations
2
Tried for
depressed mood (8)
Treatment name(s)

(BuSpar)
Perceived effectiveness
for anxious mood (6 evaluations)
Side effects
anxious mood sleepiness
Total evaluations
7
Tried for
anxious mood (6) depressed mood (3)
Treatment name(s)

(Folic Acid Prescription)
Perceived effectiveness
for vitamin B12 deficiency (4 evaluations)
Side effects
Total evaluations
5
Tried for
vitamin B12 deficiency (8)
  • 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 5
20s 61
30s 171
40s 328
50s 380
60s 207
70+ 64
Age at first symptom
Age at first symptom Proportion # of patients
0-19 years 36
20-29 years 84
30-39 years 126
40-49 years 107
50-59 years 51
60-69 years 12
70+ years 2

Distribution of sex

Sex
Sex Proportion # of patients
Male 172
Female 1046

Diagnosis status
Diagnosis status Proportion # of patients
Diagnosed 635
Not Diagnosed 30

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