If 400 mcg feels too light but a 5 mg therapeutic dose is more than you need, this **L-methylfolate** sits in between — a status-raising dose for folate, methylation, and red blood cell support. The headline 1,700 mcg DFE is a regulatory equivalence unit, not the actual amount: methylfolate counts as 1.7x its weight in DFE, so the tablet works out to about 1,000 mcg of real methylfolate, well above the 400 mcg you'd take for maintenance. Because it's the bioactive form, it skips the conversion step folic acid requires — which matters if you're among the 40–50% of people with an MTHFR variant that slows it.

That makes it a fit for everyday folate support or a known MTHFR variant, rather than correcting a diagnosed deficiency. One caution if you're an older adult: high folate can mask the early signs of a B12 deficiency, so keep your B12 in range alongside it.