5-HTP untuk Appetite Control

C Bukti Bukti terbatas dari studi kecil, namun beberapa sinyal positif ada.

Double-blind RCT (n=20) found 750 mg/day reduced caloric intake by 38% and produced greater weight loss (1.5 kg vs. +0.2 kg placebo) over 5 weeks. A 12-week crossover trial confirmed reduced carbohydrate and fat intake at 900 mg/day. Sample sizes are small but findings are mechanistically consistent.

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Kesimpulan

Key Study Findings

Animal Study

Promotion of sleep by cinnamic acid in parachlorophenylalanine-induced insomnia in rats.

Dose: Cinnamic acid (CA) administered to rats (dose not specified) vs: Placebo Efek: None None

In Vitro

Enhanced production of 5-hydroxytryptophan through the regulation of L-tryptophan biosynthetic pathway.

Dose: recombinant E. coli strain for 5-HTP biosynthesis (engineered pathway) vs: Placebo Efek: 5-HTP production increased to 1.61 g/L (24% improvement); residual L-trp reduced from 1.66 to 0.2 g/ None

In Vitro

Engineering bacterial phenylalanine 4-hydroxylase for microbial synthesis of human neurotransmitter precursor 5-hydroxytryptophan.

Dose: engineered phenylalanine 4-hydroxylase in E. coli; whole-cell bioconversion from tryptophan vs: Placebo Efek: 1.1-1.2 g/L 5-HTP production from tryptophan in shake flasks

Observational Study

Both stimulatory and inhibitory effects of dietary 5-hydroxytryptophan and tyrosine are found on urinary excretion …

Dose: 5-hydroxytryptophan (5-HTP) and tyrosine (dietary administration, various doses) vs: Placebo Efek: 5-HTP showed marginal stimulatory influence on urinary serotonin; tyrosine primarily yielded unexpec None

Key Statistics

Studi

100

Peserta

↑

Positive

Peringkat

Referenced Papers

Promotion of sleep by cinnamic acid in parachlorophenylalanine-induced insomnia in rats. Other

International immunopharmacology 2025 1 sitasi

Enhanced production of 5-hydroxytryptophan through the regulation of L-tryptophan biosynthetic pathway. Other

Applied microbiology and … 2020 30 sitasi

Engineering bacterial phenylalanine 4-hydroxylase for microbial synthesis of human neurotransmitter precursor 5-hydroxytryptophan. Other

ACS synthetic biology 2014 71 sitasi

Both stimulatory and inhibitory effects of dietary 5-hydroxytryptophan and tyrosine are found on urinary excretion of serotonin and dopamine in … Other

Neuropsychiatric disease and … 2009 31 sitasi

5-Hydroxytryptophan: a clinically-effective serotonin precursor. Review

Alternative medicine review … 1998 216 sitasi

Dosage & Usage

mg = milligrams · mcg = micrograms (1,000× smaller) · IU = International Units

Dosis yang Umum Digunakan

general:: 50-100 mg 1-3x/day
starting:: 50 mg/day and titrate up
appetitecontrol:: 250-300 mg/day 30 min before meals

Batas atas: 500 mg/day; avoid combining with SSRIs, SNRIs, MAOIs, or triptans (serotonin syndrome risk)

Dosis yang Diteliti dalam Penelitian

Dosis	Durasi	Efek	N
Cinnamic acid (CA) administered to rats (dose not specified)	--	Positive	--
recombinant E. coli strain for 5-HTP biosynthesis (engineered pathway)	--	Positive	--
engineered phenylalanine 4-hydroxylase in E. coli; whole-cell bioconversion from tryptophan	--	Positive	--
5-hydroxytryptophan (5-HTP) and tyrosine (dietary administration, various doses)	--	Mixed	--

Waktu terbaik diminum: 30 minutes before meals on an empty stomach

Safety & Side Effects

Efek Samping yang Dilaporkan

⚠ Nausea
⚠ Drowsiness
⚠ GI discomfort
⚠ Serotonin syndrome risk with contraindicated medications

Interaksi yang Diketahui

● SSRIs (serotonin syndrome risk — NEVER combine)
● SNRIs (serotonin syndrome risk — NEVER combine)
● MAOIs (serotonin syndrome risk — NEVER combine)
● Triptans (serotonin syndrome risk)
● Carbidopa

Asupan atas yang dapat ditoleransi: 500 mg/day; avoid combining with SSRIs, SNRIs, MAOIs, or triptans (serotonin syndrome risk)

Selalu konsultasikan dengan tenaga kesehatan Anda sebelum memulai suplemen apa pun.Selalu konsultasikan dengan penyedia layanan kesehatan Anda sebelum memulai suplemen apa pun.

Frequently Asked Questions

Does 5-HTP help with Appetite Control?

Based on 4 studies with 100 participants, there is limited but promising evidence that 5-HTP may support Appetite Control management. Our evidence grade is C (Some Evidence).

How much 5-HTP should I take for Appetite Control?

Studies have used various dosages. A commonly studied range is 50-100 mg 1-3x/day. Always consult your healthcare provider before starting any supplement regimen.

Are there side effects of 5-HTP?

Reported side effects may include Nausea, Drowsiness, GI discomfort, Serotonin syndrome risk with contraindicated medications. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.

How strong is the evidence for 5-HTP and Appetite Control?

We rate the evidence as Grade C (Some Evidence). This rating is based on 4 peer-reviewed studies with 100 total participants. The overall direction of effect is positive.

Bahan lain untuk Appetite Control

Glucomannan A Prebiotics/Inulin B Whey Protein B Hoodia D

5-HTP untuk kondisi lain

Emotional Eating C

Kesimpulan Singkat

Double-blind RCT (n=20) found 750 mg/day reduced caloric intake by 38% and produced greater weight loss (1.5 kg vs. +0.2 kg placebo) over 5 weeks. A 12-week crossover trial confirmed …

Evidence Strength52%

Moderate confidence

Rincian Studi

RCT (0)Meta (0)Other (4)

Bandingkan Alternatif

Lihat bagaimana bahan lain dibandingkan untuk kondisi ini.

Lihat semua bahan untuk Appetite Control

Pelajari Lebih Lanjut

References

[1] Xiaona Ye et al.. Int Immunopharmacol. 2025. Promotion of sleep by cinnamic acid in parachlorophenylalanine-induced insomnia in rats. doi:10.1016/j.intimp.2025.114852 PubMed
[2] Da Xu et al.. Appl Microbiol Biotechnol. 2020. Enhanced production of 5-hydroxytryptophan through the regulation of L-tryptophan biosynthetic pathway. doi:10.1007/s00253-020-10371-y PubMed
[3] Yuheng Lin et al.. ACS Synth Biol. 2014. Engineering bacterial phenylalanine 4-hydroxylase for microbial synthesis of human neurotransmitter precursor 5-hydroxytryptophan. doi:10.1021/sb5002505 PubMed
[4] George J Trachte et al.. Neuropsychiatr Dis Treat. 2009. Both stimulatory and inhibitory effects of dietary 5-hydroxytryptophan and tyrosine are found on urinary excretion of serotonin and dopamine in … doi:10.2147/ndt.s5040 PubMed
[5] T C Birdsall. Altern Med Rev. 1998. 5-Hydroxytryptophan: a clinically-effective serotonin precursor. PubMed

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