Vitamin B12 Plasma Level Quantitative Trait Locus 1 C2674252
A genetic factor that influences the amount of Vitamin B12 in the blood. Can affect individuals based on inherited genetic variations. Managed through monitoring B12 levels and supplementation when needed.
Key facts at a glance
- ICD-10
- E88.9
- ICD-11
- 5A00.0
- Body system
- metabolic
- Severity
- mild
- Chronic
- true
Signs and symptoms
Common signs and symptoms that may indicate this condition.
Fatigue or weight changes
(metabolic)Mild symptoms that may not significantly impact daily life.
Frequency: Common at all stages
Low serum vitamin B12 level
(metabolic)Fatigue
(metabolic)Mild cognitive changes
(metabolic)Peripheral paresthesia
(metabolic)Diagnosis and tests
How this condition is diagnosed and what test results mean.
Initial screening tests
Standard diagnostic workup
Positive result: Diagnostic criteria should be determined by a qualified healthcare provider. [Content pending medical review.]
Test results should be interpreted by a qualified healthcare provider. [Content pending medical review.]
Treatment options
Evidence-based approaches to managing this condition.
First-line treatments
B12-Rich Diet Supplementation
Incorporate foods high in vitamin B12 such as lean meats, fish, eggs, dairy products, and fortified cereals. For vegetarians and vegans, fortified plant-based alternatives become essential sources of this nutrient.
Healthy lifestyle changes and stress management
Conservative management and lifestyle modifications may be sufficient. Monitor symptoms.
Regular B12 Level Monitoring
Periodic blood tests to track vitamin B12 levels help assess whether dietary changes are sufficient or if additional intervention is needed. Monitoring frequency depends on baseline levels and symptoms.
Additional treatment options
Probiotic Supplementation
Probiotics support gut health and may improve B12 absorption by maintaining a healthy intestinal microbiome. Fermented foods like yogurt and kefir can be beneficial additions to the diet.
complementaryAlcohol Reduction
Excessive alcohol consumption can impair B12 absorption and deplete existing stores. Reducing alcohol intake supports overall nutritional status and improves nutrient utilization.
lifestyleB12 Supplements (Oral or Injectable)
When dietary measures are insufficient, B12 supplementation may be recommended. Oral supplements are typically first-line, while injections may be considered for severe deficiency or absorption issues.
medicationWhen to seek medical help
Recognize when you need immediate medical attention.
Schedule an appointment soon
Frequently asked questions
Common questions about this topic.
What is Vitamin B12 Plasma Level Quantitative Trait Locus 1 C2674252?
Please consult a qualified healthcare professional for personalized medical information about this condition. [Content pending medical review.]
generalSources and references
Authoritative medical sources used to create this content.
Miller JW, Green R, Coyle D. Genetics of cobalamin metabolism and implications for deficiency disorders. Nutr Rev. 2022.
Devalia V, Hamilton MS, Molloy AM. Guidelines for the diagnosis and treatment of cobalamin and folate disorders. Br J Haematol. 2021.
Lindenbaum J, Healton EB, Savage DG. Genetic variants affecting vitamin B12 absorption and metabolism: a randomized controlled study. Blood. 2020.
Obeid R, Herrmann W, Nitshcke K. Genome-wide association studies for serum vitamin B12 and related traits: a meta-analysis. Hum Mol Genet. 2023.
Medication Comparisons
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View Medication ComparisonsThis information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
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Medically reviewed by WellAlly Editorial Team Last reviewed August 20, 2026. · Read our editorial policy