色氨酸（Tryptophan） 用于 入睡困难
B基于19项研究（1项荟萃分析、1项RCT），共96名参与者。16/19项研究显示积极效果。
<\/script>\n`;
},
get iframeSnippet() {
const domain = 'sleepcited.com';
const params = 'ingredient\u003Dtryptophan\u0026condition\u003Dsleep\u002Donset\u002Dlatency';
return ``;
},
get activeSnippet() {
return this.method === 'script' ? this.scriptSnippet : this.iframeSnippet;
},
copySnippet() {
navigator.clipboard.writeText(this.activeSnippet).then(() => {
this.copied = true;
setTimeout(() => { this.copied = false; }, 2000);
});
}
}"
@keydown.escape.window="open = false"
@click.outside="open = false">
B
结论
Tryptophan shows promising signs for helping people fall asleep faster, supported by a strong biological rationale, though the studies so far have been quite small.
- 84% of 19 studies show positive effects — a very consistent finding
- Works through conversion to serotonin and then melatonin in the brain
- Total participant count of only 96 limits the strength of conclusions
- Includes 1 meta-analysis and 1 RCT — larger trials are needed
Key Study Findings
Review
Effects of L-tryptophan on sleepiness and on sleep.
Dose: 1 g or more
vs: Placebo
效果: Increase in subjective sleepiness; decrease in sleep latency
review
Unraveling the connection between the Mediterranean diet and sleep health: from biological mechanisms to clinical …
Dose: Mediterranean diet (high adherence vs. low adherence); polyphenols, omega-3, fiber as key components
vs: Placebo
效果: None
None
Animal study
Ginsenoside Rg1 alleviates PCPA-induced insomnia by inhibiting NLRP3 inflammasome activation and pyroptosis through the Nrf2/HO-1 …
Dose: None
vs: Placebo
效果: None
None
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
效果: None
None
Animal study
Lactobacillales derived from traditional Xizang dairy products improve insomnia and restore neurotransmitter-metabolic profiles via gut …
Dose: Mixed probiotics (Lactobacillus helveticus L551, Lacticaseibacillus paracasei L578, Streptococcus th
vs: Placebo
效果: None
None
Animal study
Wendan Decoction exerts therapeutic effects on insomnia by regulating gut microbiota and tryptophan metabolism.
Dose: None
vs: Placebo
效果: None
None
Key Statistics
19
研究数量
96
受试者
↑
Positive
B
等级
Referenced Papers
Journal of psychiatric …
None
102 次引用
Psychopharmacology
2025
5 次引用
Phytomedicine : international …
2025
5 次引用
Microbiological research
2025
3 次引用
International immunopharmacology
2025
1 次引用
Sleep & breathing …
2025
Neurochemical research
2024
14 次引用
Journal of ethnopharmacology
2024
13 次引用
Journal of ethnopharmacology
2024
13 次引用
Phytomedicine : international …
2023
33 次引用
The impact of tryptophan supplementation on sleep quality: a systematic review, meta-analysis, and meta-regression.
Meta-Analysis
Nutrition reviews
2022
68 次引用
Study on the hypnotic effect of rare protopanaxadiol-type and protopanaxatriol-type ginsenosides.
Other
RSC advances
2019
13 次引用
Drugs & aging
2018
131 次引用
Nutrition research and …
2018
12 次引用
Journal of clinical …
2017
1097 次引用
Biomedical reports
2015
12 次引用
European journal of …
2014
43 次引用
Pharmacology, biochemistry, and …
2008
76 次引用
Psychopharmacology
1983
25 次引用
Dosage & Usage
mg = milligrams · mcg = micrograms (1,000× smaller) · IU = International Units
常用剂量
- sleep:
- 250-1,000 mg, before bed
上限： Not established; previously recalled (1989) due to contamination
研究中使用的剂量
| 剂量 | 持续时间 | 效果 | N |
|---|---|---|---|
| 1 g or more | -- | Positive | -- |
| Mediterranean diet (high adherence vs. low adherence); polyphenols, omega-3, fiber as key components | -- | Positive | -- |
| None | -- | Positive | -- |
| Cinnamic acid (CA) administered to rats (dose not specified) | -- | Positive | -- |
| Mixed probiotics (Lactobacillus helveticus L551, Lacticaseibacillus paracasei L578, Streptococcus th | -- | Positive | -- |
| None | -- | Positive | -- |
| cannabidiol (CBD) at various doses administered to mice | -- | Positive | -- |
| not specified (intragastric administration) | -- | Positive | -- |
最佳服用时间： 30-60 minutes before bed, ideally on a light stomach
Safety & Side Effects
已报告的副作用
- ⚠ Nausea
- ⚠ Diarrhea
- ⚠ Drowsiness
- ⚠ Dry mouth
- ⚠ Blurred vision
已知相互作用
- ● SSRIs/SNRIs — risk of serotonin syndrome
- ● MAOIs — dangerous serotonin accumulation
- ● Sedatives — additive drowsiness
可耐受最高摄入量： Not established; previously recalled (1989) due to contamination
在开始服用任何补充剂之前，请务必咨询您的医疗保健提供者。
Frequently Asked Questions
Does 色氨酸（Tryptophan） help with 入睡困难?
Based on 19 studies with 96 participants, there is moderate evidence from clinical studies that 色氨酸（Tryptophan） may support 入睡困难 management. Our evidence grade is B (Good Evidence).
How much 色氨酸（Tryptophan） should I take for 入睡困难?
Studies have used various dosages. A commonly studied range is 250-1,000 mg, before bed. Always consult your healthcare provider before starting any supplement regimen.
Are there side effects of 色氨酸（Tryptophan）?
Reported side effects may include Nausea, Diarrhea, Drowsiness, Dry mouth. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.
How strong is the evidence for 色氨酸（Tryptophan） and 入睡困难?
We rate the evidence as Grade B (Good Evidence). This rating is based on 19 peer-reviewed studies with 96 total participants. The overall direction of effect is positive.
Related Evidence
其他成分用于 入睡困难
色氨酸（Tryptophan） 用于其他健康状况
FDA 免责声明: 这些声明未经美国食品药品监督管理局（FDA）评估。本网站上的产品和信息无意用于诊断、治疗、治愈或预防任何疾病。所展示的证据等级基于我们对已发表的同行评审研究的分析，不构成医疗建议。在开始任何补充剂方案之前，请务必咨询您的医疗保健提供者。