Research Authors

Overview

SCIENTIFIC SCORE
Possibly Effective
Based on 1 Research
7
USERS' SCORE
Good
Based on 4 Reviews
8.9
Supplement Facts
Serving Size: 1 Vegetarian Capsule
Amount Per Serving
%DV
Folate (as L-5-Methyltetrahydrofolate calcium salt)
680 mcg°
170%
Vitamin B12 (as methylcobalamin)
300 mcg
12,500%

Top Medical Research Studies

We explored a group of 29 patients who were referred to three allergy centers in the UK due to suspected vitamin B12 hypersensitivity (VB12H). Over the period from 2014 to 2022, these patients underwent various tests, including skin prick tests and drug provocation tests. The aim was to understand how vitamin B12 treatment relates to allergies and to develop a reliable method for assessing hypersensitivity.

Among the patients, 62% displayed immediate hypersensitivity reactions, with some experiencing severe anaphylaxis to vitamin B12 forms. Interestingly, we found that some patients who were sensitized to a specific type of vitamin B12 could tolerate another form. This indicates that not all vitamin B12 treatments may cause problems for everyone. However, confirmed cases of VB12H are considered to be quite rare.

Overall, while we identified individual cases where vitamin B12 treatment provoked allergic responses, the evidence suggests that vitamin B12 hypersensitivity is uncommon. This nuances the discussions around vitamin B12 treatment face since adverse reactions are not widespread. Our proposed evaluation protocol includes skin testing and considerations for allergies to related substances, such as polyethylene glycol.

Therefore, while there is an observable connection between vitamin B12 and allergic reactions in a small subset of individuals, the study indicates that treatment for vitamin B12 deficiency remains generally safe for most individuals.
Read More

Most Useful Reviews

10
Effective and profitable
Excellent drug, effective and profitable; I highly recommend it. Allergies are not an issue.
Read More
10
Stopped nervous tic
I administered it for my son, and it does not induce allergies. His nervous tic has ceased. The analyses indicated improved levels, confirming that the preparation is effective without causing discomfort.
Read More
10
Perfect swallowing size
Excellent composition and a perfect size for swallowing, without causing any allergies or discomfort during use.
Read More

Medical Researches

SCIENTIFIC SCORE
Possibly Effective
Based on 1 Research
7
  • All Researches
We explored a group of 29 patients who were referred to three allergy centers in the UK due to suspected vitamin B12 hypersensitivity (VB12H). Over the period from 2014 to 2022, these patients underwent various tests, including skin prick tests and drug provocation tests. The aim was to understand how vitamin B12 treatment relates to allergies and to develop a reliable method for assessing hypersensitivity.

Among the patients, 62% displayed immediate hypersensitivity reactions, with some experiencing severe anaphylaxis to vitamin B12 forms. Interestingly, we found that some patients who were sensitized to a specific type of vitamin B12 could tolerate another form. This indicates that not all vitamin B12 treatments may cause problems for everyone. However, confirmed cases of VB12H are considered to be quite rare.

Overall, while we identified individual cases where vitamin B12 treatment provoked allergic responses, the evidence suggests that vitamin B12 hypersensitivity is uncommon. This nuances the discussions around vitamin B12 treatment face since adverse reactions are not widespread. Our proposed evaluation protocol includes skin testing and considerations for allergies to related substances, such as polyethylene glycol.

Therefore, while there is an observable connection between vitamin B12 and allergic reactions in a small subset of individuals, the study indicates that treatment for vitamin B12 deficiency remains generally safe for most individuals.
Read More

User Reviews

USERS' SCORE
Good
Based on 4 Reviews
8.9
  • All Reviews
  • Positive Reviews
  • Negative Reviews
10
Effective and profitable
Excellent drug, effective and profitable; I highly recommend it. Allergies are not an issue.
Read More
10
Stopped nervous tic
I administered it for my son, and it does not induce allergies. His nervous tic has ceased. The analyses indicated improved levels, confirming that the preparation is effective without causing discomfort.
Read More
10
Perfect swallowing size
Excellent composition and a perfect size for swallowing, without causing any allergies or discomfort during use.
Read More
10
No allergies observed
Very good vitamins and no allergies to them whatsoever! Other forms of B are effective as well.
Read More

Frequently Asked Questions

10
Stopped nervous tic
I administered it for my son, and it does not induce allergies. His nervous tic has ceased. The analyses indicated improved levels, confirming that the preparation is effective without causing discomfort.
10
Effective and profitable
Excellent drug, effective and profitable; I highly recommend it. Allergies are not an issue.
10
Perfect swallowing size
Excellent composition and a perfect size for swallowing, without causing any allergies or discomfort during use.
10
No allergies observed
Very good vitamins and no allergies to them whatsoever! Other forms of B are effective as well.
We explored a group of 29 patients who were referred to three allergy centers in the UK due to suspected vitamin B12 hypersensitivity (VB12H). Over the period from 2014 to 2022, these patients underwent various tests, including skin prick tests and drug provocation tests. The aim was to understand how vitamin B12 treatment relates to allergies and to develop a reliable method for assessing hypersensitivity.

Among the patients, 62% displayed immediate hypersensitivity reactions, with some experiencing severe anaphylaxis to vitamin B12 forms. Interestingly, we found that some patients who were sensitized to a specific type of vitamin B12 could tolerate another form. This indicates that not all vitamin B12 treatments may cause problems for everyone. However, confirmed cases of VB12H are considered to be quite rare.

Overall, while we identified individual cases where vitamin B12 treatment provoked allergic responses, the evidence suggests that vitamin B12 hypersensitivity is uncommon. This nuances the discussions around vitamin B12 treatment face since adverse reactions are not widespread. Our proposed evaluation protocol includes skin testing and considerations for allergies to related substances, such as polyethylene glycol.

Therefore, while there is an observable connection between vitamin B12 and allergic reactions in a small subset of individuals, the study indicates that treatment for vitamin B12 deficiency remains generally safe for most individuals.

References

  1. El Rhermoul FZ, Mustafa A, Wagner A, Nakonechna A, Kayode OS, et al. Vitamin B Hypersensitivity: A Retrospective Multicenter Study. J Allergy Clin Immunol Pract. 2024;12:699. 10.1016/j.jaip.2023.10.037
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