Evidence supporting the use of: Green tea
For the health condition: Alzheimer's Disease

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Synopsis

Source of validity: Scientific
Rating (out of 5): 2

Green tea has been explored as a potential supportive agent for Alzheimer's Disease (AD) primarily due to its rich content of polyphenolic compounds, especially epigallocatechin-3-gallate (EGCG). Laboratory and animal studies have shown that EGCG exhibits antioxidant, anti-inflammatory, and neuroprotective effects. These mechanisms are relevant because oxidative stress and inflammation are thought to contribute to Alzheimer’s pathology, and EGCG may also inhibit the aggregation of amyloid-beta plaques, a hallmark of AD. Furthermore, some in vitro studies suggest that green tea polyphenols can modulate cell signaling pathways involved in neuronal survival and plasticity.

However, despite these promising preclinical findings, clinical evidence in humans is limited and not yet conclusive. A few small clinical trials and observational studies have reported associations between green tea consumption and a reduced risk or slower cognitive decline in elderly populations. For instance, some population-based studies in Asia have suggested a correlation between higher green tea intake and better cognitive performance. Yet, these studies are observational and cannot prove causality. Randomized controlled trials specifically investigating green tea or EGCG supplementation in Alzheimer's patients are scarce, and results so far have been inconclusive or have only shown modest effects.

Overall, while there is a scientific rationale and some preliminary evidence for the use of green tea in supporting brain health and possibly influencing Alzheimer’s risk, the strength of human clinical data is low. More robust trials are needed before green tea can be recommended as a treatment for Alzheimer’s Disease.

More about green tea
More about Alzheimer's Disease

Other ingredients used for Alzheimer's Disease

2-(carbamimidoyl-methyl-amino) ethoxyphosphonic acid
7,14-Hydroxy-Docosapentaenoic Acid
7,8-Dihydroxyflavone
Acacetin
Acai berry
Acetyl L-carnitine
Acetylcholine
Agmatine
Akkermansia muciniphila
Algae
algal oil
alpha-linolenic acid (ALA)
alpha-lipoic acid
amentoflavone
amino acids
AMP-activated protein kinase (AMPK)
ampelopsin
aniracetam
anserine
anthocyanins
apigenin
apocynin
Aronia melanocarpa
ashwagandha
astaxanthin
astragaloside
avocado
Bacopa
Bacopin
bacoside
baicalein
baicalin
Basidiomycota
benfotiamine
berberine
beta caryophyllene
beta-hydroxybutyrate
Bifidobacteria
Bifidobacterium longum
bilobalide
black garlic
black seed
black tea
blueberry
brahmi
broccoli
butylphthalide
butyrate triglyceride
butyric acid
C-phycocyanin
caffeic Acid
caffeine
Camellia sinensis
cannabigerol
Cannabis sativa oil
caprylic acid
carnosic acid
Carnosine
caryophyllene
catalpol
catechins
centrophenoxine
Chinese Ligustrum berry
Chinese salvia root
chokeberry
choline
Cinnamomum
cinnamon
cistanche
citicoline
cocoa
coenzyme Q10 (CoQ10)
Convolvulus prostratus
creatine
crocetin
crocin
Curcuma
curcumen
curcumin
Curcuminoid
cyanidin
cyclodextrin
cytidine
d-alpha tocopherol
decursin
DHA (docosahexaenoic acid)
dihydrolipoic acid
docosahexaenoic Acid
DPA (docosapentaenoic acid)
Ecklonia
eicosapentaenoic acid
ellagic acid
EPA (eicosapentaenoic acid)
epicatechin
epigallocatechin gallate (EGCG)
ergothioneine
estrogen
fatty acids
ferulic acid
fisetin
fish
fish oil
fish protein
flavanols
flavanones
flavans
flavones
flavonoids
flavonols
flavonones
fo-ti
fungus
galantamine
gallate
gallic acid
gamma tocopherol
ganoderma
garcinol
gastrodia
gastrodin
genistein
ginkgetin
ginkgo biloba
ginkgo flavone glycoside
ginkgoheteroside
ginkgolides
Ginkgoside
ginseng
Ginsenosides
Glucoraphanin
glycerophosphocholine (GPC)
grape
green tea
Gypenoside
hemp
hemp oil
herbal blend (proprietary)
Hericenones
hericium mushroom
hesperetin
hesperidin
Homotaurine
Honokiol
huperzine A
hydroxytyrosol
Hyperoside
icariin
iridoids
isoliquiritigenin
isovitexin
Kaempferol
ketone salts
l-carnitine
L-carnosine
L-serine
L-theanine
Lentinula edodes mycelia
lingzhi
lion's mane
lipids
lutein
luteolin
Lycium
lycopene
magnesium
magnolol
malvidin
mangiferin
Marine fat
Marine lipid
Maslinic acid
Matcha
medium chain triglycerides (MCT)
Melatonin
Methoxylated flavones
Methylcobalamin
Monoterpenes
Monounsaturated fat
Morus
Mulberroside A
Mulberry
Myricetin
Myricitrin
N-acetyl-cysteine (NAC)
NADH
Naringenin
Naringin
Nervonic acid
Niacinamide (vitamin B3)
nicotinamide riboside
Nigella seed
Nobiletin
Norvaline
Oleuropein
olive
omega-3 fatty acids
Osthole
oyster mushroom
paeoniflorin
Pentacyclic triterpenoids
Peptides
phenolic compounds
phosphatidylcholine
phosphatidylserine
phospholipids
Phycocyanin
phytocannabinoids
Phytoestrogens
Piperine
Polydatin
Polygala
polygala root
polymethoxylated flavones
polyphenols
polysaccharides
polyunsaturated fat
pomegranate
pregnenolone
punicalagins
Pycnogenol
pyrroloquinoline disodium salt
pyrroloquinoline quinone
quercetin
reishi mushroom
resveratrol
rhizome
rosemary
rosmarinic acid
royal jelly
S-allylcysteine
saffron
Safranal
sage
Salidroside
Salmon Oil
Salvianolic acid
SAMe (S-adenosyl-L-methionine disulfate p-toluensulfate)
Sarcosine
Schisandrins
Schizochytrium
Schizochytrium Oil
selenium
Selenocysteine
Shankhpushpi
Shilajit
Shogaol
Solanaceae
Soy
soy isoflavones
Stilbenoid
Sulforaphane
sulforaphane glucosinolate
Syringic acid
Tangeretin
Taurine
Taxifolin
terpene lactones
Terpenoids
Theaflavin
Tinospora cordifolia
tocotrienols
Trans-pterostilbene
Trehalose
Tremella
tributyrin
Triterpenes
Tumerone
turmeric
Turmerones
ubiquinol
Uncaria
Uridine
Urolithin A
Ursolic Acid
Vinpocetine
vitamin B
vitamin B12
vitamin C
vitamin D
vitamin D3
vitamin E
Walnut
Withanolides
Wogonin
Xanthohumol
Xanthophyll
Xylaria nigripes
β-nicotinamide mononucleotide (NMN)

Other health conditions supported by green tea

Acne
Addictions (coffee, caffeine)
Age Spots
Aging (prevention)
Allergies (food)
Allergies (respiratory)
Alzheimer's Disease
Antibiotics (alternatives to)
Anxiety
Anxiety Disorders
Appetite (excessive)
Arteriosclerosis
Arthritis
Asthma
Athletic and Exercise Aids
Autoimmune Disorders
Belching
Benign Prostate Hyperplasia
Bites and Stings
Bleeding (internal)
Blood in Urine
Bloodshot Eyes
Breast Lumps
Cancer (natural therapy for)
Cancer (prevention)
Cardiovascular Disease
Cartilage Damage
Cellulite
Cervical Dysplasia
Chemotherapy (reducing side effects)
Chicken Pox
Cholesterol (high)
Cholesterol (low)
Chronic Obstructive Pulmonary Disorder
Circulation (poor)
Circulation (to the brain)
Cirrhosis of the Liver
Colds (antiviral)
Colds (decongestant)
Colds (general)
Colds (prevention)
Colds (with fever)
Colic (children)
Colitis
Colon (atonic)
Colon (spastic)
Concentration (poor)
Congestion
Congestion (bronchial)
Congestion (lungs)
Congestion (lymphatic)
Congestion (sinus)
Conjunctivitis
Constipation (adults)
Contagious Diseases
Convalescence
Cough (damp)
Cough (dry)
Cough (general)
Cough (spastic)
Cramps (menstrual)
Crohn's Disease
Cuts
Cystic Breast Disease
Cystic Fibrosis
Cytomealovirus
Dandruff
Debility
Dementia
Denture Sores
Depression
Dermatitis
Diabetes
Diabetic Retinopathy
Diarrhea
Digestion (poor)
Down Syndrome
Endometriosis
Epstein Barr Virus
Eye Infections
Eye Problems
Eyes (red or itching)
Fibroids (uterine)
Free Radical Damage
Fungal Infections
Glaucoma
Hemochromatosis
Irritable Bowel Syndrome
Parkinson's Disease
Perspiration (excessive)
PMS (general)
Polyps
Rosacea
Skin (oily)
Abdominal Pain
Abscesses
Body Odor
Cancer Treatment (reducing side effects)
Fatigue
Gastritis
Gingivitis
Hair (loss or thinning)
Headache (general)
Hypertension
Inflammation
Influenza
Liver Detoxification
Memory and Brain Function
Oral Surgery
Psoriasis
Stress
Triglycerides (high)
Ulcers
Urinary Tract Infections
Wrinkles