Food Folate
Also called Dietary folate / natural folate
Natural food folate is found in dark leafy greens (spinach, kale, romaine), legumes (lentils, black beans, chickpeas), asparagus, broccoli, avocado, and eggs. Its bioavailability is roughly 50–80% of that of synthetic folic acid, and cooking can destroy 50–90% of the folate content. Food folate still requires MTHFR enzyme activity to be fully activated, so it shares the same bottleneck as folic acid in MTHFR carriers. A diet rich in folate-containing whole foods is always beneficial and reduces overall supplementation needs, but should not be relied upon as the sole strategy in people with confirmed MTHFR mutations or elevated homocysteine.
Best for
Whole-diet approach, complementing supplements
Absorption
Moderate
Tolerability
Naturally well tolerated
Typical timing
With or without food; morning is common to support daytime methylation
How to take Food Folate
A typical dose of Folate (B9): 400–1,000 mcg DFE per day; up to 1,000 mcg L-Methylfolate for MTHFR. Best timing: With or without food; morning is common to support daytime methylation. The form you choose mainly affects absorption and how easily it sits with your stomach, not the overall dose.