Folate (B9) and L-Tryptophan
Folate supports the methylation cycle needed to recycle and activate neurotransmitter cofactors.
Folate (B9)
The active B vitamin behind methylation, mood, and pregnancy health.
L-Tryptophan
The dietary precursor to serotonin and melatonin.
Great to combine
These two are frequently stacked together; they complement each other and are commonly taken at the same time.
How to take them
Folate (B9)
- Dose
- 400–1,000 mcg DFE per day; up to 1,000 mcg L-Methylfolate for MTHFR
- Timing
- With or without food; morning is common to support daytime methylation
L-Tryptophan
- Dose
- 500–2,000 mg per day
- Timing
- Evening on an empty stomach, or with a small carbohydrate snack to improve brain uptake
Frequently asked
Can you take Folate (B9) and L-Tryptophan together?
Yes, they are commonly taken together. Folate supports the methylation cycle needed to recycle and activate neurotransmitter cofactors.
What's the best time to take Folate (B9) and L-Tryptophan?
Around the same time works well. Folate (B9): With or without food; morning is common to support daytime methylation. L-Tryptophan: Evening on an empty stomach, or with a small carbohydrate snack to improve brain uptake.
How do Folate (B9) and L-Tryptophan interact?
Synergy: Work better together than alone. Folate supports the methylation cycle needed to recycle and activate neurotransmitter cofactors.
Related pairings
Folate (B9) + Iron
Both folate and iron are needed for healthy red blood cell production. Deficiency in either causes anaemia.
Folate (B9) + Magnesium
Magnesium is a required cofactor for many methylation enzymes; low magnesium can limit the benefit of folate supplementation.
Folate (B9) + L-Tyrosine
Methylation via folate is required to activate cofactors in catecholamine synthesis.
Glycine + L-Tryptophan
Glycine (inhibitory) and tryptophan-derived serotonin/melatonin work through complementary pathways to support sleep.