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Supplement
L-Tryptophan
L-tryptophan shows modest but consistent benefits for sleep quality in several trials, helping people fall asleep faster and experience fewer nighttime awakenings. The evidence for mood and anxiety support is weaker, with only small studies showing benefit. As your body's raw material for making both serotonin and melatonin, it offers a gentle, foundational approach that works with your natural rhythms rather than forcing them.
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Evidence quality
Overall: Mixed evidence
Randomised controlled trials
Multiple randomized trials show L-tryptophan reduces time to fall asleep and improves sleep quality compared to placebo.
Observational studies
Limited observational data exists, mostly focusing on dietary tryptophan intake and general well-being.
Meta-analyses
Meta-analyses confirm modest but significant improvements in sleep onset and quality across studies.
Menopause-specific trials
No studies have specifically examined L-tryptophan supplementation in menopausal women.
What we do not know
We don't know the optimal dose for menopausal women specifically, as most studies tested doses between 1-3 grams in mixed populations. We lack long-term safety data beyond 12 weeks of use. Most sleep studies were conducted in young adults or people with diagnosed sleep disorders, not healthy perimenopausal women. We don't know how L-tryptophan interacts with hormone therapy or common menopause medications.
How L-Tryptophan is used for menopause symptoms
Common dose range
500-2000mg daily
Notes on dosing
Take in the evening for sleep support. Takes 2-4 weeks to notice consistent benefit.
Get it from food first
Food sources are better absorbed than most supplements and come with co-factors that support the same pathways. If you eat two or three of these consistently, you may not need a supplement at all.
Turkey
140 mg per 3 oz
Despite the Thanksgiving myth, turkey contains moderate amounts
Pumpkin seeds
110 mg per ounce
One of the richest plant sources
Salmon
95 mg per 3 oz
Also provides omega-3s for additional mood support
Eggs
80 mg per large egg
Complete protein with good bioavailability
Milk
40 mg per cup
Traditional bedtime drink has scientific basis
Mediterranean Diet
Rich in tryptophan-containing fish, nuts, and seeds while supporting overall neurotransmitter production
Balanced Protein Distribution
Including tryptophan-rich proteins throughout the day helps maintain steady serotonin production
What depletes L-Tryptophan
High-sugar meals can interfere with tryptophan transport to the brain by flooding the system with competing amino acids. Excessive caffeine may reduce tryptophan's effectiveness. Chronic stress depletes serotonin stores faster than they can be replenished.
Interactions and cautions
No significant interactions noted at recommended doses.
Rose bottom line
"If you're struggling with sleep during this transition, L-tryptophan offers a research-backed approach that works with your body's natural processes. Start with food sources and consider supplements if dietary changes aren't enough - your sleep matters, and gentle support often works better than forcing solutions."
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Written by
Founder & Editor · Living through perimenopause · rosemyfriend.com
Research basis
PubMed · Cochrane reviews · NICE guidelines · British Menopause Society · The Menopause Society
Read methodology →
Last updated
March 2026
Rose provides evidence-graded educational information — not medical advice. Always discuss health decisions with a qualified healthcare provider. Full disclaimer · About Rose