亜鉛：入眠困難

合計9,228名の参加者を対象とした33件の研究（メタアナリシス4件、RCT 8件を含む）に基づく。33件中24件の研究で肯定的な効果が示されている。

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結論

Zinc is well-supported by research as a mineral supplement that may help you fall asleep more easily, backed by multiple high-quality studies.

33 studies with 9,228 participants, including 4 meta-analyses and 8 RCTs
About 73% of studies show positive effects on falling asleep
High-quality evidence from multiple meta-analyses and randomized trials
May support sleep onset through effects on melatonin metabolism and neurotransmitters

Key Study Findings

Observational Study n=68947 Open-label

Bidirectional associations of zinc supplement intake with biological ageing interacted by metabolic equivalent of task: …

Dose: Recommended dose vs >40 mg/day (excessive) vs: Non-supplemented; insufficient exercise Outcome: Biological age acceleration 効果: -0.13y (recommended); +3.23y (excessive>40mg/d) <0.001

対象集団: UK Biobank participants

Mendelian randomization

Genetically Supported Causality Between Micronutrients and Sleep Behaviors: A Two-Sample Mendelian Randomization Study.

Dose: None vs: Placebo 効果: Folate vs chronotype OR 1.09 (95% CI 1.01-1.17); Vitamin B6 vs chronotype OR 0.91 (95% CI 0.86-0.96) Folate p=0.02; Vitamin B6 p=1.

animal experimental study

Lavender improves sleep through olfactory perception and GABAergic neurons of the central amygdala.

Dose: LEO 25.0% concentration via inhalation during light phase vs: Placebo 効果: LEO 25% significantly shortened NREM sleep latency, increased NREM sleep, decreased wakefulness; com None

Controlled Clinical Trial n=54 2 weeks Open-label

Short-term oral zinc supplementation enhances Natural Killer cell functionality and decreases circulating Innate Lymphoid Cell …

Dose: 10 mg zinc daily vs: Pre-supplementation baseline Outcome: NK cell functionality and cILC counts 効果: None None

対象集団: Healthy adults (omnivores, vegetarians, vegans)

review

[Nutrition in improving sleep quality and fighting insomnia].

Dose: tryptophan, carbohydrates, omega-3, vitamins (B6, B12, folate, niacin, D, C, beta-carotene), mineral vs: Placebo 効果: None None

Controlled Clinical Trial 4 weeks

Tissue zinc restoration alleviates the levodopa-induced dyskinesia via impeding ERK phosphorylation.

Dose: 0.3, 1.2, or 2.4 mg/kg for 4 weeks vs: Zinc 0 mg/kg (LID control) Outcome: Abnormal involuntary movements (AIMs) score 効果: None None

対象集団: Male C57BL/6J mice with levodopa-induced dyskinesia

Key Statistics

研究数

155140

参加者数

↑

Positive

グレード

Referenced Papers

Lavender improves sleep through olfactory perception and GABAergic neurons of the central amygdala. Other

Journal of ethnopharmacology 2025 8 件の引用

Short-term oral zinc supplementation enhances Natural Killer cell functionality and decreases circulating Innate Lymphoid Cell counts and frequencies in healthy … Other

Journal of translational … 2025 6 件の引用

Bidirectional associations of zinc supplement intake with biological ageing interacted by metabolic equivalent of task: A large-scale population-based Biobank study. Other

Clinical nutrition (Edinburgh, … 2025 1 件の引用

Genetically Supported Causality Between Micronutrients and Sleep Behaviors: A Two-Sample Mendelian Randomization Study. Other

Brain and behavior 2025

[Nutrition in improving sleep quality and fighting insomnia]. Review

Nutricion hospitalaria 2025

Tissue zinc restoration alleviates the levodopa-induced dyskinesia via impeding ERK phosphorylation. Other

European journal of … 2025

Herbal and Natural Supplements for Improving Sleep: A Literature Review. Other

Psychiatry investigation 2024 24 件の引用

Efficacy and Tolerability of a Food Supplement Based on Zea mays L., Gymnema sylvestre (Retz.) R.br.ex Sm, Zinc and Chromium … RCT

Nutrients 2024 3 件の引用

Bacterial cellulose matrix and acellular dermal matrix seeded with fibroblasts grown in platelet-rich plasma supplemented medium, compared to free gingival … Other

Journal of periodontal … 2024

Depression and lifestyle: Focusing on nutrition, exercise, and their possible relevance to molecular mechanisms. Meta-Analysis

Psychiatry and clinical … 2023 67 件の引用

Yeast Beta-Glucan Supplementation with Multivitamins Attenuates Cognitive Impairments in Individuals with Myalgic Encephalomyelitis/Chronic Fatigue Syndrome: A Randomized, Double-Blind, Placebo-Controlled Trial. RCT

Nutrients 2023 9 件の引用

A review on bioactive phytochemicals and ethnopharmacological potential of purslane (Portulaca oleracea L.). Review

Heliyon 2022 117 件の引用

Zinc supplementation during chemotherapy for gynecological malignancy. Other

The journal of … 2021 7 件の引用

Lack of evidence for the effectiveness or safety of over-the-counter cannabidiol products. Review

Therapeutic advances in … 2020 30 件の引用

Modulation of ruminal and intestinal fermentation by medicinal plants and zinc from different sources. Other

Journal of animal … 2018 15 件の引用

Are Dietary Supplements and Nutraceuticals Effective for Musculoskeletal Health and Cognitive Function? A Scoping Review. Review

The journal of … 2017 75 件の引用

Iron Deficiency, Zinc, Magnesium, Vitamin Deficiencies in Crohn's Disease: Substitute or Not? Review

Digestive diseases (Basel, … 2016 41 件の引用

Nutritional supplements for the treatment of ADHD. Review

Child and adolescent … 2014 42 件の引用

Zinc fate in animal husbandry systems. Review

Metallomics : integrated … 2014 25 件の引用

Chios mastic, a natural supplement for zinc to enhance male sexuality and prostate function. Other

Pharmaceutical biology 2010 16 件の引用

Effects of maternal zinc supplementation on pregnancy and lactation outcomes. Review

Food and nutrition … 2009 122 件の引用

Iron and zinc deficiencies in China: what is a feasible and cost-effective strategy? Other

Public health nutrition 2008 149 件の引用

Suppressive effect of Yokukansan on excessive release of glutamate and aspartate in the hippocampus of zinc-deficient rats. Other

Nutritional neuroscience 2008 73 件の引用

Future therapeutic treatment of COPD: struggle between oxidants and cytokines. Review

International journal of … 2007 56 件の引用

Utilization of keratin-containing biowaste to produce biohydrogen. Other

Applied microbiology and … 2005 95 件の引用

Zinc for prostate disease and other conditions: a little evidence, a lot of hype, and a significant potential problem. Review

Urologic nursing 2004

Zinc deficiency, infectious disease and mortality in the developing world. Review

The Journal of … 2003 359 件の引用

N-acetyl-L-cysteine prevents DNA damage induced by UVA, UVB and visible radiation in human fibroblasts. Other

Journal of photochemistry … 2003 71 件の引用

The immune system: a target for functional foods? Review

The British journal … 2002 358 件の引用

Zinc supplementation. Other

Journal of the … 2000 52 件の引用

Intake of vitamins B6 and C and the risk of kidney stones in women. Other

Journal of the … 1999 191 件の引用

Zinc and micronutrient supplements for children. Review

The American journal … 1998 121 件の引用

Effect of zinc or zinc plus arginine supplementation on antibody titre and lymphocyte subsets after influenza vaccination in elderly subjects: … RCT

Age and ageing 1998 86 件の引用

Dosage & Usage

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

一般的な使用量

sleep:: 15-30 mg, with dinner
general:: 8-11 mg/day

上限量： 40 mg/day

研究で検討された用量

用量	期間	効果	N
Recommended dose vs >40 mg/day (excessive)	--	Positive	68947
None	--	Mixed	--
LEO 25.0% concentration via inhalation during light phase	--	Positive	--
10 mg zinc daily	2 weeks	Positive	54
tryptophan, carbohydrates, omega-3, vitamins (B6, B12, folate, niacin, D, C, beta-carotene), mineral	--	Positive	--
0.3, 1.2, or 2.4 mg/kg for 4 weeks	4 weeks	Positive	--
Zea mays, Gymnema sylvestre, zinc, chromium	--	Positive	81
varies by supplement	--	Positive	--

推奨摂取タイミング： With dinner; avoid taking on an empty stomach

Safety & Side Effects

報告されている副作用

⚠ Nausea
⚠ Metallic taste
⚠ Copper depletion with long-term high-dose use
⚠ Headache

既知の相互作用

● Antibiotics (tetracyclines, fluoroquinolones) — zinc reduces absorption
● Penicillamine — zinc reduces absorption of this drug
● Thiazide diuretics — increase zinc excretion

耐容上限摂取量： 40 mg/day

サプリメントの摂取を開始する前に、必ず医療専門家にご相談ください。

Frequently Asked Questions

Does 亜鉛 help with 入眠困難?

Based on 32 studies with 155,140 participants, there is strong evidence from multiple clinical trials that 亜鉛 may support 入眠困難 management. Our evidence grade is A (Strong Evidence).

How much 亜鉛 should I take for 入眠困難?

Studies have used various dosages. A commonly studied range is 15-30 mg, with dinner. Always consult your healthcare provider before starting any supplement regimen.

Are there side effects of 亜鉛?

Reported side effects may include Nausea, Metallic taste, Copper depletion with long-term high-dose use, Headache. Most side effects are mild and dose-dependent. Consult your doctor if you experience any adverse reactions.

How strong is the evidence for 亜鉛 and 入眠困難?

We rate the evidence as Grade A (Strong Evidence). This rating is based on 32 peer-reviewed studies with 155,140 total participants. The overall direction of effect is positive.

Related Evidence

に関する他の成分：入眠困難

ビタミンB6 A グリシン酸マグネシウム A メラトニン A Hops A L-テアニン A アピゲニン B

亜鉛他の症状・状態について

不眠症 A

総合評価

合計9,228名の参加者を対象とした33件の研究（メタアナリシス4件、RCT 8件を含む）に基づく。33件中24件の研究で肯定的な効果が示されている。

Evidence Strength92%

High confidence

研究の内訳

RCT (3)Meta (1)Other (28)

代替成分との比較

この症状に対する他の成分との比較をご覧ください。

に関するすべての成分を見る：入眠困難

詳しく見る

FDAに関する免責事項: これらの記述は米国食品医薬品局（FDA）による評価を受けていません。本ウェブサイトの製品および情報は、疾病の診断、治療、治癒、または予防を目的としたものではありません。表示されているエビデンスグレードは、公開された査読済み研究の分析に基づいており、医療上の助言を構成するものではありません。サプリメントの摂取を開始する前に、必ず医療専門家にご相談ください。

亜鉛 ： 入眠困難