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Choose methylcobalamin if: You have confirmed MTHFR mutations Elevated homocysteine levels Neurological or mood symptoms You tolerate methylated supplements well Choose hydroxocobalamin if: Sensitive to methyl-B12 (anxiety, insomnia) Histamine intolerance or MCAS Need gentle, balanced B12 support Want detoxification benefits Choose adenosylcobalamin if: Chronic fatigue is your primary concern Mitochondrial dysfunction Want to combine with methyl-B12 for comprehensive support Consider combination formulas: Many practitioners recommend combining forms: Methyl-B12 + Adeno-B12 (methylation + energy) Hydroxy-B12 + Adeno-B12 (gentle + energy) All three forms for comprehensive support The bottom line: For MTHFR mutations, methylcobalamin is typically most effective for supporting methylation and lowering homocysteine
Plus, we offer holistic support with customized dietary recommendations and wellness strategies to help you achieve lasting success
Your doctor may recommend reducing or stopping B12 supplementation, then retesting in 4 to 8 weeks
BMC Public Health 12: 394
When B12 is used medically, its typically the prescription product Cyanocobalamin injection administered intramuscularly for documented deficiency
AHK-Cu typically comes in a 50 mg vial
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