Overview
Reduced folate form.
- Whole-food sources (animal products for fat-soluble and B-complex vitamins; produce for water-soluble vitamins)
- Fortified foods (cereals, dairy, plant milks, nutritional yeast)
- Multivitamins or stand-alone supplements in synthetic or food-derived form
- Capsule or softgel
- Sublingual tablet or liquid
- Methylated active form for sensitive individuals
- Multivitamin matrix
Mechanism of action
Tetrahydrofolate derivative; bypasses DHFR.
- · Tetrahydrofolate derivative
- · bypasses DHFR
Effects on the body
Organ system effects
Folinic Acid (Leucovorin) acts on central nervous system targets implicated in attention, memory, and neuroprotection.
Evidence-based benefits
Folate antagonist rescue
Moderate evidencePotential side effects
- · Well tolerated
Drug interactions
Supplement interactions
- Omega-3 (EPA/DHA)Membrane fluidity and neuronal signaling support.
- Alpha-GPC or CDP-cholineProvides choline substrate for acetylcholine synthesis.
No specific avoidances listed.
Dosing & bioavailability
Where to buy
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Third-party testedIndependently verified Folinic Acid (Leucovorin) — look for USP, NSF, or Informed Sport seals on the label for purity and dose accuracy.Folinic Acid (Leucovorin) third party tested NSF
CapsulesPre-measured Folinic Acid (Leucovorin) capsules — easiest for travel and consistent daily dosing without scoops or scales.Folinic Acid (Leucovorin) capsules
PowderBulk unflavored Folinic Acid (Leucovorin) powder — best cost-per-gram and flexible dosing for stacking or mixing into drinks.Folinic Acid (Leucovorin) powder unflavored
Best sellersMost-purchased Folinic Acid (Leucovorin) products on Amazon — a quick way to see what's reviewed widely before you commit.Folinic Acid (Leucovorin) best sellerScientific evidence8Show studiesHide studies
Folinic acid in autism
Frye RE, et al.
48 ASD children
Improved verbal communication.
PubMed: Folinic Acid (Leucovorin) — Folate antagonist rescue
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