Evidence supporting the use of: N-acetyl-cysteine (NAC)
For the health condition: Anxiety
Synopsis
Source of validity: Scientific
Rating (out of 5): 2
N-acetyl-cysteine (NAC) has garnered some scientific interest as a potential adjunctive treatment for anxiety disorders, although the evidence base is still emerging and not robust. NAC is a precursor to the antioxidant glutathione and has been studied primarily for its effects on oxidative stress and glutamate modulation in the brain. Several small clinical trials and animal studies suggest that NAC may have anxiolytic (anxiety-reducing) effects, possibly by modulating glutamatergic neurotransmission and reducing oxidative stress, both of which are implicated in the pathophysiology of anxiety disorders.
For example, open-label studies and a few controlled trials have explored NAC’s efficacy in conditions where anxiety symptoms are prevalent, such as obsessive-compulsive disorder (OCD), trichotillomania, and post-traumatic stress disorder (PTSD). Some of these studies have shown modest reductions in anxiety symptoms, often as a secondary outcome, but results are inconsistent and sample sizes are often small. A handful of systematic reviews and meta-analyses suggest that while NAC may have some benefit, the quality of evidence is low, and more rigorous, large-scale randomized controlled trials are needed.
In summary, while there is some scientific rationale and preliminary evidence suggesting NAC could support anxiety management, the overall strength of evidence is limited (rated 2 out of 5). NAC is not a first-line treatment, and its use for anxiety should be considered experimental pending further research. Always consult a healthcare provider before using NAC for anxiety.
Other ingredients used for Anxiety
5-Hydroxytryptophan (5-HTP)alpha-pinene
amino acids
ashwagandha
Waterhyssop
basil
benegut perilla (proprietary)
bergamot
beta caryophyllene
Bifidobacterium bifidum
Bifidobacterium infantis
Bifidobacterium lactis
Bifidobacterium longum
black cumin
bupleurum falcatum
California poppy
Cannabis sativa oil
chamomile
Chinese salvia root
citrus oil
clove
cordyceps
curcumin
damiana
DHA (docosahexaenoic acid)
epigallocatechin gallate (EGCG)
fennel
gardenia
ginkgo biloba
ginseng
gotu kola
Greek mountain tea
green tea
guayusa
hemp oil
hops
Indian tinospora
inositol
jujube
kava
kudzu
L-glycine
L-theanine
L-tryptophan
lactium casein decapeptide
Lactobacillus brevis
Lactobacillus fermentum
Lactobacillus gasseri
Lactobacillus helveticus
Lactobacillus paracasei
lactiplantibacillus plantarum
Lactobacillus reuteri
Lactobacillus rhamnosus
Lactobacillus salivarius
lavender
lion's mane
lithium orotate
maca
magnesium
magnolia
Matcha
Melatonin
Mint
Motherwort
Muira puama
N-acetyl-cysteine (NAC)
omega-3 fatty acids
passionflower
phellodendron amurense
phosphatidylserine
phytocannabinoids
polygala root
prebiotic blend (proprietary)
pregnenolone
pyridoxal-5-phosphate (P-5-P)
reishi mushroom
relora® (proprietary)
rhizome
Rhodiola
rose oil
rosemary
saffron
sage
SAMe (S-adenosyl-L-methionine disulfate p-toluensulfate)
sceletium
skullcap
spearmint leaf
Sphaeranthus indicus
thyme
Valerian root
velvet bean
vitamin B
vitamin B12
vitamin B6
vitamin C
Zinc
squawvine
catnip
gastrodia
cardamom
shen-chu
Mugwort
anise
Tinospora cordifolia
blackboard tree
peony
lingzhi
lemongrass
kanna
silk tree
chrysanthemum
ganoderma
sweet flag
oriental arborvitae
Menthol oil
St. John's Wort
Wood betony
herbal blend (proprietary)
indigo leaves
cocoa
soursop
geranium
star of Bethlehem
7,8-Dihydroxyflavone
ash
Agastache
alpha-terpineol
Ardisia
Agrimony
apigenin
anamu
Albizia
Aconite
Agmatine
Agarwood
Anemone
Alpha lactalbumin
Asteraceae
aniracetam
Amor seco
betony
black seed
Bifidobacterium
Baikal Skullcap
Bifidobacterium adolescentis
balsam
bayleaf
Bacopin
baicalein
brahmi
Bacopa
bee products
Bombax
bacteria
Bifidobacteria
Bupleurum
bacoside
baicalin
borneol
Camellia sinensis
Centella triterpenes
caryophyllene
Monkey flower
Cinnamomum
Clary sage
capillary artemisia
citron
Chinese raisintree
Cymbopogon martini
Calea zacatechichi
Centella asiatica
Capitate Valerian
Curcuma
catuaba
cowslip
cannabidiol
calamus
Clostridium butyricum
Convolvulus prostratus
Convolvulus pluricaulis
Clerodendrum indicum
Canscora
cannabigerol
dodeca-2E, 4E-dienoic acid isobutylamide
dragonhead
Erythrina
essential oil blend
eugenol
fragrant rosewood
Ficus religiosa
fatty acids
fungus
Gelsemium
Ginsenosides
Griffonia simplicifolia
Glycine
Gardenia jasminoides
gastrodin
Honokiol
Hyperoside
heal-all
Hypericum
hyperforin
Herb Robert
hericium mushroom
hemp
honeybush
iridoids
isoliquiritigenin
Ilex
Indian fagonia
jasmine
jujubosides
Jatamansi
kavalactones
Kefir
lemon balm
Lactobacillus plantarum
Lactucarium
Litsea
linden
Lactococcus rhamnosus
Lactucopicrin
ligustilides
limonene
longan
Lavandin
lotus
Lycopodium
Lactobacillus johnsonii
Large-leaved linden
lupulinum
linalool
Mentha haplocalyx
Myrcene
Marjoram
Mimulus
Monoterpenes
Mimosa
magnolol
Mulungu
Mesembrine
Nardostachys
Nigella seed
Nymphaea caerulea
Nymphaea nouchali
Nutmeg
Oroxylum indicum
oolong tea
Osmanthus
Oxindole alkaloids
Puerain
Phellodendron
Phenylpropanoids
Pulsatilla
prepared aconite tuber
Patchouli oil
probiotics
Passionfruit
paeoniflorin
poppy
Polygala
Petiveria
Plectranthus amboinicus
Purple Monkeyflower
rue
rosavins
Rauvolfia
rosmarinic acid
rose
Rooibos
Sophora
Speedwell
Scoparia dulcis
Sete sangrias
Sesquiterpenes
Sumbul
Self-Heal
Spikenard
Scleranthus annus
Salvia
Sensitive Plant
Southern Tsangshu
Southernwood
Salidroside
Shankhpushpi
Schisandrins
Sandalwood
Stachytarpheta cayennensis
Schizandrol A
Storax
Safranal
Sweet Orange alcohol
Terpenoids
Tea
Traveler's Joy
Trichilia catigua
Tagara
Tetrahydropalmatine
Uncaria
Vetiver
Valerenic acid
Vervain
Vitexin
Viburnum
Verbena
Violet
Vitex Agnus-Castus
Withanolides
White Tea
Wogonin
Xylaria nigripes
Yuzu
Yerba buena
Yohimbine
Ylang ylang
Other health conditions supported by N-acetyl-cysteine (NAC)
Addictions (drugs)Addictions (general remedies for)
Addictions (sugar or refined carbohydrates)
Addictions (tobacco smoking or chewing)
Alcoholism
Alzheimer's Disease
Anxiety
Anxiety Disorders
Arthritis
Asthma
Autoimmune Disorders
Bipolar Mood Disorder
Cancer Treatment (reducing side effects)
Cardiovascular Disease
Chemotherapy (reducing side effects)
Chronic Obstructive Pulmonary Disorder
Cirrhosis of the Liver
Colitis
Congestion (bronchial)
Congestive Heart Failure
Crohn's Disease
Depression
Diabetes
Emphysema
Environmental Pollution
Fibromyalgia Syndrome
Fibrosis
Free Radical Damage
Gastritis
Heavy Metal Poisoning
Hepatitis
Infection
Infection (bacterial)
Inflammation
Inflammatory Bowel Disorders
Parkinson's Disease
Peripheral Neuropathy
Schizophrenia
Products containing N-acetyl-cysteine (NAC)
Metagenics
AdvaClear
Metagenics
AdvaClear
Designs For Health
Amino-D-Tox™
Designs For Health
Amino-D-Tox™
Pure Encapsulations
AntiOxidant Formula
Pure Encapsulations
Athletic Nutrients
Metagenics
Axis Endo™ Mango
Metagenics
Ceralin® Forte
Metagenics
Clear Change 10-Day Detox Program with UltraClear RENEW Berry
Metagenics
Clear Change 10-Day Detox Program with UltraClear RENEW Vanilla
Metagenics
Clear Change 28-Day Detox Program with UltraClear RENEW Berry
Metagenics
Clear Change 28-Day Detox Program with UltraClear RENEW Chai
Metagenics
Clear Change 28-Day Detox Program with UltraClear RENEW Vanilla
Metagenics
Clear Change Daily Essentials
Designs For Health
Detox Antiox™
Integrative Therapeutics
Detoxication Factors
Integrative Therapeutics
Detoxication Factors
Designs For Health
Detoxification Support Packets
Pure Encapsulations
DIM Detox
Metagenics
EstroFactors®
Metagenics
GlutaClear®
Designs For Health
Hepatatone Plus™
Pure Encapsulations
Hist Reset
Pure Encapsulations
HM Complex
Pure Encapsulations
HM Complex
Metagenics
Immune Active
Metagenics
Immune Defense Pack
Integrative Therapeutics
K-PAX MitoNutrients
Pure Encapsulations
Lithium Orotate 5 mg
Pure Encapsulations
Lithium Orotate 5 mg
Pure Encapsulations
Liver G.I. Detox
Pure Encapsulations
LVR Formula
Pure Encapsulations
LVR Formula
Pure Encapsulations
Macular Support Formula
Pure Encapsulations
Macular Support Formula
Designs For Health
Metal-X-Synergy™
Metagenics
MethylCare
Pure Encapsulations
Mitochondria-ATP
Integrative Therapeutics
Multiplex-1 No-Iron
Designs For Health
N-Acetyl-Cysteine
Integrative Therapeutics
NAC
Thorne
NAC
Pure Encapsulations
NAC+ Glycine Powder
Douglas Laboratories
NAC (N-ACETYL CYSTEINE) 600 mg
Douglas Laboratories
NAC (N-ACETYL CYSTEINE) 900 mg
Pure Encapsulations
NAC (N-Acetyl-l-Cysteine) 600 mg
Pure Encapsulations
NAC (n-acetyl-l-cysteine) 600 mg
Pure Encapsulations
NAC (N-Acetyl-l-Cysteine) 600 mg
Pure Encapsulations
NAC (N-Acetyl-l-Cysteine) 900 mg
Pure Encapsulations
NAC (N-Acetyl-l-Cysteine) 900 mg
Pure Encapsulations
Nutrient 950® with NAC
Designs For Health
OcuForce™
Designs For Health
PaleoCleanse Plus™
Designs For Health
PaleoCleanse Plus™
Designs For Health
PaleoCleanse Plus™ Detox Program
Designs For Health
PaleoCleanse Plus™Chocolate Detox Kit
Designs For Health
Plant Protein Cleanse
Designs For Health
Plant Protein Cleanse Plus™ 570g
Pure Encapsulations
Polyphenol Nutrients
Pure Encapsulations
Polyphenol Nutrients
Designs For Health
Pulmonary Revive™
Pure Encapsulations
PureDefense with NAC
Pure Encapsulations
PureDefense with NAC
Pure Encapsulations
PureGenomics® UltraMultivitamin
Metagenics
Renagen™ DTX
Designs For Health
S-Acetyl Glutathione Synergy
Metagenics
Sinuplex®
Vitabase
Super Antioxidant Formula
Pure Encapsulations
Th2 Modulator
Metagenics
Trancor®
Douglas Laboratories
Ultra Preventive
Douglas Laboratories
Ultra Preventive
Douglas Laboratories
Ultra Preventive ®-EZ Swallow
Douglas Laboratories
Ultra Preventive® X
Metagenics
UltraClear RENEW Detox Powder Berry
Metagenics
UltraClear RENEW Detox Powder Chai
Metagenics
UltraClear RENEW Detox Powder Vanilla
