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L-Tryptophan
 
precursor
Summary

"Tryptophan is an α-amino acid that is used in the biosynthesis of proteins...It is essential in humans, meaning that the body cannot synthesize it and it must be obtained from the diet. Tryptophan is also a precursor to the neurotransmitter serotonin, the hormone melatonin, and vitamin B3."

“Tryptophan.” Wikipedia, Wikimedia Foundation, 23 Oct. 2022, en.wikipedia.org/wiki/Tryptophan.

Benefits
1.
serves as the precursor to the neurotransmitter serotonin [1]
Deficiency Factors

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Applications
Insomnia
Dosage Guidelines
Dosing Range
500
-
1500
mg
Dose Increment
500
mg
Maximum Daily
3000
mg
Best absorbed
with food
Recommended Products
L-Tryptophan 500mg - Nutricost Order from %seller% 
L-Tryptophan 500 mg - NOW Order from %seller% 

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References
1. 
Richard, Dawn M, et al. “L-Tryptophan: Basic Metabolic Functions, Behavioral Research and Therapeutic Indications.” International Journal of Tryptophan Research, vol. 2, Jan. 2009, p. IJTR.S2129, www.ncbi.nlm.nih.gov/pmc/articles/PMC2908021/, 10.4137/ijtr.s2129.
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These icons appear on items to indicate the affected neurotransmitter(s).
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Dopaminergic. promotes the synthesis or activity of dopamine.

Endorphinergic. promotes the synthesis or activity of endorphins.

noradrenergic

Noradrenergic. promotes the synthesis or activity of noradrenaline.

Cholinergic. promotes the synthesis or activity of acetylcholine.

gabanergic

GABAnergic. promotes the synthesis or activity of GABA.

Serotonergic. promotes the synthesis or activity of serotonin.

These icons appear on items to indicate the optimal time-of-day.
rising

Rising. sunrise to mid-morning.

2-midmorning

Morning. mid-morning to noon.

3-noon

Noon. noon to mid-afternoon.

5-sunset

Afternoon. mid-afternoon to sunset.

evening

Evening. sunset to bedtime.

These icons appear on items to indicate additional benefits & important alerts.

Synergistic. combining with another supplement may increase potency.

Methylation agent. increases or decreases methylation of neurotransmitters.

Cortisol modulator. affects the synthesis or activity of the stress hormone cortisol.

Glucose regulator. attenuates changes in blood sugar levels.

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Neurotransmitter Scores

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