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Old 06-30-2018, 03:18 PM
Mark in Idaho Mark in Idaho is offline
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Mark in Idaho Mark in Idaho is offline
Legendary
 
Join Date: Feb 2009
Location: Somewhere near here
Posts: 11,418
15 yr Member
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Actually, the process goes from L-Tryptophan that is converted as needed to 5-HTP which is the precursor to serotonin and melatonin. L-Tryptophan does not convert until the brain asks for it. Taking L-Tryptophan supplements will not directly impact melatonin levels. L-Tryptophan converts as it crosses the blood brain barrier.
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