Evidence supporting the use of: Zinc
For the health condition: Insomnia
Synopsis
Source of validity: Scientific
Rating (out of 5): 2
Zinc has been investigated for its role in sleep regulation and the potential to support or treat insomnia. Several observational studies have found correlations between serum zinc levels and sleep quality. For example, a 2017 review in Biological Trace Element Research summarized evidence suggesting that higher zinc levels are associated with improved sleep efficiency and duration, particularly in children and adolescents. Experimental studies, such as a 2011 clinical trial published in European Journal of Clinical Nutrition, found that supplementation with zinc, often in combination with other nutrients like magnesium and melatonin, improved self-reported sleep quality in older adults. Animal studies also suggest that zinc can modulate the central nervous system and may influence neurotransmitters involved in sleep regulation, such as GABA and glutamate. However, the evidence remains limited and somewhat inconsistent. Most human studies are small, observational, or use zinc as part of a multi-nutrient supplement, making it difficult to isolate the effect of zinc alone. Systematic reviews note a lack of large-scale randomized controlled trials directly assessing zinc monotherapy for insomnia. Thus, while there is preliminary scientific interest and some suggestive data, the overall evidence supporting zinc as a treatment for insomnia is weak to moderate and does not reach the level of strong clinical validation. Zinc supplementation may be helpful for individuals with deficiency, but its routine use for insomnia is not currently supported by robust clinical evidence.
Other ingredients used for Insomnia
5-Hydroxytryptophan (5-HTP)Agarwood
Agastache
Agrimonia pilosa
Albizia
Alpha lactalbumin
alpha-terpineol
amber
amino acids
anamu
anemarrhena asphodeloides
Anemone
Angelica
anise
apigenin
Aralia
Arani
ashwagandha
aster root
atractylone
Baikal Skullcap
balsam
banyan
bayleaf
benegut perilla (proprietary)
betony
big quaking grass
black cumin
black seed
blackboard tree
blackthorn
Borassus aethiopum
borassus palm
brahmi
Bupleurum
cactus
calamus
calcium
Calea zacatechichi
California poppy
cannabidiol
cannabinol
Capitate Valerian
carry me seed
Carthamus
cassia bark
catnip
Centella asiatica
Centella triterpenes
chamomile
cherimoya
cherry
Chinese salvia root
Chinese silkvine
chrysanthemum
cinnamon
citron
Clary sage
Clerodendrum indicum
Clerodendrum trichotomum
Coptis chinensis
corktree
Corydalis
cowslip
Cyathula
Cymbopogon martini
David\'s milkberry
Doxylamine succinate
dragonhead
elephant\'s head
elk antler
Embelia
Erodium cicutarium
European Elder
fennel
Ficus religiosa
Ficus simplicissima
Flueggea suffruticosa
frankincense
fringed pink
GABA (gamma aminobutyric acid)
ganoderma
Gardenia jasminoides
Gelsemium
geraniol
giant blazingstar
Glycine
goji berry
gooseberry
gotu kola
Greek mountain tea
heartwood
Homalomena
honeybush
hops
Indian frankincense
jasmine
Jatamansi
Jatoba
jujube
jujubosides
kava
kavalactones
kiwi
kudzu
Kukicha
L-tryptophan
labrador tea
lactium casein decapeptide
Lactucarium
Lady of the Night
Large-leaved linden
lavender
lemon balm
Lesser speargrass
Lilium polyphyllum
lily
linalool
linden
Lindera
lingzhi
little ironweed
longan
loquat
Loranthus
lotus
lotus seed
lupulinum
Lycium
maca
Macaranga indica
mace
magnesium
magnolia
magnolol
mallow
Marine lipid
Marjoram
Matapalo Tree
Melatonin
Mesua
Microtea debilis
Milk Protein
Mimosa
Moringa
Morning glory
Morus
Motherwort
Mulungu
Myrcene
Nardostachys
Night jessamine
Nymphaea caerulea
Nymphaea nouchali
Onosma bracteatum
Ophiopogon
ophiopogon root
orange
orchid
Oroxylum indicum
Osmanthus
Osthole
paeoniflorin
passionflower
Passionfruit
Patchouli oil
peach
perilla
Persimmon
phlorotannins
phytocannabinoids
Pimpinella
pollen
Polygala
polygala root
Polygonatum
Polygonum
polysaccharides
poppy
Portulaca
Premna
Pulsatilla
purslane
quail egg
Rauvolfia
reishi mushroom
rice
Rooibos
rose
rose oil
Rubiaceae
rue
saffron
Safranal
sage
Salvia
Sandalwood
Sarivan
Schisandrins
Scoparia dulcis
scrophularia root
Sedanenolide
Self-Heal
Semecarpus anacardium
Sensitive Plant
Shankhpushpi
silk tree
skullcap
soursop
Southernwood
Speedwell
Spikenard
Stachytarpheta cayennensis
Sumac
Sumbul
Sweet Annie
Sweet Bay
Sweet Orange alcohol
Sweet Woodruff
Sword Bean
Szechuan lovage
Tagara
Terminalia
Tetrahydropalmatine
Valerenic acid
Valerian root
Verbena
Vervain
Vetiver
vitamin B6
Walnut
Waterhyssop
Wax Gourd
Winter Begonia
Winter Savory
Withanolides
Wood betony
Yellow-Fruit Nightshade
Ylang ylang
Yuzu
Zinc
Other health conditions supported by Zinc
AbrasionsAcne
Acquired Immune Deficiency Syndrome
Aging (prevention)
Alcoholism
Anemia
Anorexia
Antibiotics (alternatives to)
Anxiety
Anxiety Disorders
Appetite (deficient)
Arthritis
Athlete's Foot
Attention Deficit Disorder
Autism
Autoimmune Disorders
Benign Prostate Hyperplasia
Birth Defects (prevention)
Bites and Stings
Blisters
Body Building
Body Odor
Boils
Broken Bones
Bruises (healing)
Bulimia
Burns and Scalds
Calcium Deficiency
Cancer (natural therapy for)
Cancer (prevention)
Cancer Treatment (reducing side effects)
Canker Sores
Carbuncles
Cardiovascular Disease
Cartilage Damage
Cataracts
Celiac Disease
Cervical Dysplasia
Chemotherapy (reducing side effects)
Cholera
Cirrhosis of the Liver
Cold Sores
Colds (antiviral)
Colds (decongestant)
Colds (general)
Colds (prevention)
Colds (with fever)
Colitis
Concentration (poor)
Congestion
Congestive Heart Failure
Conjunctivitis
Contagious Diseases
Convalescence
Copper Toxicity
Cough (damp)
Cough (dry)
Cough (general)
Cough (spastic)
Cradle Cap
Cramps (menstrual)
Crohn's Disease
Cuts
Cystic Fibrosis
Dandruff
Debility
Dehydration
Depression
Dermatitis
Diabetes
Diabetic Retinopathy
Diaper Rash
Diarrhea
Digestion (poor)
Duodenal Ulcers
Dysentery
Eczema
Endometriosis
Energy (lack of)
Enteritis
Epstein Barr Virus
Erectile Dysfunction
Exercise
Eye Infections
Eye Problems
Eyes (red or itching)
Eyes (spots before)
Eyesight (poor)
Failure to Thrive
Fat Metabolism (poor)
Fatty Liver Disease
Fibrosis
Fingernails (weak or brittle)
Foot Odor
Free Radical Damage
Gastritis
Giardia
Gingivitis
Hair (loss or thinning)
Hair Care (general)
Halitosis
Hashimoto's Disease
Hearing Loss
Heart (weakness)
Heavy Metal Poisoning
Hemochromatosis
Hemorrhoids
Hepatitis
Herpes
Hypothyroid
Impetigo
Infection
Infection (bacterial)
Infection (viral)
Infertility
Inflammation
Inflammatory Bowel Disorders
Influenza
Injuries
Insomnia
Irritability
Irritable Bowel Syndrome
Itching
Itching (rectal)
Jock Itch
Labor and Delivery
Lead Poisoning
Leaky Gut Syndrome
Leprosy
Lesions
Leucorrhea
Liver Detoxification
Lupus
Macular Degeneration
Mastitis
Measles
Memory and Brain Function
Menorrhagia
Menstrual Irregularity
Mental Illness
Metabolic Syndrome
Migraine
Miscarriage (prevention)
Mononucleosis
Mood Swings
Nerve Damage
Nervous Exhaustion
Night Blindness
Nursing
Obsessive Compulsive Disorder
Oral Surgery
Osteoporosis
Pancreatitis
PMS (general)
PMS Type A
PMS Type C
PMS Type D
PMS Type H
PMS Type P
PMS Type S
Pneumonia
Poison Ivy or Oak
Post Partum Depression
Post Partum Weakness
Pregnancy (herbs and supplements for)
Premature Ejaculation
Progesterone (low)
Prostatitis
Protein Digestion (poor)
Psoriasis
Puberty (hormone balancer)
Rashes and Hives
Rhinitis
Rosacea
Scars / Scar Tissue
Schizophrenia
Scratches and Abrasions
Seborrhea
Sex Drive (low)
Shingles
Sickle Cell Anemia
Sinus Infection
Skin (dry and/or flaky)
Skin (infections)
Skin (oily)
Skin Care (general)
Sleep (restless and disturbed)
Small Intestinal Bacterial Overgrowth
Smell (loss of)
Sore or Geographic Tongue
Sore Throat
Stress
Stye
Sugar Cravings
Sunburn
Surgery (healing from)
Surgery (preparation for)
Syphilis
Teeth (loose)
Testosterone (low)
Thinking (cloudy)
Tickle in Throat
Tonsillitis
Tooth Decay
Toxemia
Triglycerides (high)
Tuberculosis
Ulcerations (external)
Ulcers
Vitiligo
Warts
Wasting
Worry
Wounds and Sores
Products containing Zinc
Nature's Sunshine Love and Peas (Sugar Free Original Formula)
Nature's Sunshine 5-HTP Power
Nature's Sunshine Adrenal Support
Nature's Sunshine AnxiousLess
Nature's Sunshine AnxiousLess
Nature's Sunshine Bowel Detox
Nature's Sunshine Calcium-Magnesium (SynerPro)
Nature's Sunshine Candida Clear
Nature's Sunshine Cellular Energy
Nature's Sunshine Children's Elderberry Immune
Nature's Sunshine Children's MultiVitamin & Mineral
Nature's Sunshine Defense Maintenance
Nature's Sunshine Dieter's Cleanse
Nature's Sunshine Glandular System
Nature's Sunshine Love and Peas (Sugar Free) NEW!
Nature's Sunshine Love and Peas
Nature's Sunshine Master Gland Formula®
Nature's Sunshine Mega-Chel
Nature's Sunshine Men's Formula (With Lycopene)
Nature's Sunshine MultiVitamin & Mineral (SynerPro)
Nature's Sunshine MultiVitamin & Mineral (Time Release)
Nature's Sunshine Natural Changes
Nature's Sunshine Nature's Prenatal
Nature's Sunshine Nature's Harvest
Nature's Sunshine Perfect Eyes
Nature's Sunshine Power Greens Pouch
Nature's Sunshine Power Greens To-Go
Nature's Sunshine Power Meal Chocolate
Nature's Sunshine Power Meal Vanilla
Nature's Sunshine Skeletal Strength
Nature's Sunshine Solstic Twenty-Four
Nature's Sunshine Solstic Immune
Nature's Sunshine Structural System (30 Day Program)
Nature's Sunshine Super Supplemental
Nature's Sunshine Super Supplemental (Without Iron)
Nature's Sunshine Super Trio
Nature's Sunshine Target TS-II Formula
Nature's Sunshine Thyroid Support
Nature's Sunshine Ultrabiome DTX
Nature's Sunshine VitaWave
Nature's Sunshine Yeast/Fungal Detox
Nature's Sunshine Zinc
Nature's Sunshine Zinc Lozenge
