Why is Vitamin B12 important?

Vitamin B12 (cobalamin) is essential for DNA synthesis, red blood cell formation, neurological function, and energy metabolism. In functional medicine, we recognize that B12 deficiency is surprisingly common, especially in older adults, vegetarians, vegans, and those with digestive issues. B12 deficiency can cause irreversible neurological damage if left untreated. The vitamin is crucial for methylation reactions, which affect cardiovascular health, detoxification, and gene expression. Even subclinical deficiency can cause fatigue, depression, and cognitive issues before anemia develops.

What are the symptoms of abnormal Vitamin B12 levels?

B12 deficiency: fatigue, weakness, pale skin, shortness of breath, dizziness, cognitive problems, depression, peripheral neuropathy, balance problems, megaloblastic anemia.

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Vitamin B12

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Vitamin B12 is essential for neurological function, energy production, and DNA synthesis. Deficiency can cause irreversible damage, making early detection and correction critical.

Test Vitamin B12 now

Vitamin B12 (cobalamin) is essential for DNA synthesis, red blood cell formation, neurological function, and energy metabolism
In functional medicine, we recognize that B12 deficiency is surprisingly common, especially in older adults, vegetarians, vegans, and those with digestive issues
B12 deficiency can cause irreversible neurological damage if left untreated
The vitamin is crucial for methylation reactions, which affect cardiovascular health, detoxification, and gene expression
Even subclinical deficiency can cause fatigue, depression, and cognitive issues before anemia develops

Vitamin B12 is essential for neurological function, energy production, and DNA synthesis
Deficiency can cause irreversible damage, making early detection and correction critical

B12 deficiency: fatigue, weakness, pale skin, shortness of breath, dizziness, cognitive problems, depression, peripheral neuropathy, balance problems, megaloblastic anemia

Low B12: inadequate dietary intake (especially plant-based diets), malabsorption (pernicious anemia, celiac disease, Crohn's disease), aging, certain medications (PPIs, metformin), alcohol abuse, gastric surgery

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Vitamin B12

About Vitamin B12

Why Vitamin B12 Matters

Symptoms of Vitamin B12

What Affects Vitamin B12 Levels

How it works: 4 easy steps

Choose your tests

Quick & convenient testing

Clear, personalized results

Optimize your health

Our Comprehensive Panels

Explore Other Tests

Basophils

Apolipoprotein B

Nitrite

Monocyte-to-Lymphocyte Ratio (MLR)

Our Customers Says

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