What it is
Regulatory status: dietary supplement; not approved to treat cardiovascular or neurologic disease
Mechanism evidence: human
At a glance
What it is, why people use it, the evidence, and what to know before trying it.
Why people use it
- Correct folate or B12 inadequacy
- Support homocysteine metabolism
Evidence at a glance
This is a real two-ingredient product category, not a single molecule. It can address documented nutrient needs, but claims based only on common MTHFR variants or homocysteine targets require individual clinical context.
Confidence: moderate
Safety & interactions
Known side effects, interactions and use limits from reviewed sources.
The exact strength matters. Folate can obscure blood signs of B12 deficiency, and B12 or folate treatment should not substitute for diagnosing anemia, neuropathy or malabsorption.
Forms and variants
This review does not automatically apply to:
- L-methylfolate alone
- vitamin B12 alone
- unresolved B-complex formulas
Seen in protocols
Public protocols that include Methylfolate with methylcobalamin. Open one to see the full context and source.