Evidence supporting the use of: Omega-3 fatty acids
For the health condition: Dementia

Links: Go back one page, Tool main page, Ingredients list, Health conditions list, Body systems list

Synopsis

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

Omega-3 fatty acids, particularly eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), are commonly explored for their potential role in supporting cognitive health and treating dementia, including Alzheimer’s disease. Scientific interest stems from the fact that DHA is an important structural component of neuronal membranes in the brain, and omega-3s possess anti-inflammatory properties that may theoretically slow neurodegeneration. Epidemiological studies suggest that populations with higher dietary intake of omega-3-rich fish tend to have lower rates of cognitive decline. However, evidence from randomized controlled trials (RCTs) is mixed and generally underwhelming.

Systematic reviews and meta-analyses (such as those published in the Cochrane Database and JAMA) have generally concluded that omega-3 supplementation does not significantly improve cognitive function or slow dementia progression in people already diagnosed with dementia. Some studies show minor cognitive benefits in individuals with mild cognitive impairment or in healthy older adults, but these effects are modest and not consistently replicated. Overall, while there is a plausible biological rationale and some weak supportive data, current scientific consensus is that omega-3 fatty acids have limited clinical efficacy as a treatment for established dementia. Ongoing research continues to explore whether earlier intervention or higher doses might yield more meaningful effects.

More about omega-3 fatty acids
More about Dementia

Other health conditions supported by omega-3 fatty acids

Acne
Acquired Immune Deficiency Syndrome
Addictions (drugs)
Addictions (general remedies for)
Addictions (tobacco smoking or chewing)
Aging (prevention)
Alcoholism
Allergies (food)
Allergies (respiratory)
Alzheimer's Disease
Angina
Anorexia
Anxiety
Anxiety Disorders
Apathy
Arrhythmia
Arteriosclerosis
Anger (excessive)
Arthritis
Asthma
Athletic and Exercise Aids
Attention Deficit Disorder
Autism
Autoimmune Disorders
Backache
Bipolar Mood Disorder
Birth Defects (prevention)
Blood Clots (prevention of)
Bloodshot Eyes
Body Building
Broken Bones
Bulimia
Cancer (natural therapy for)
Cancer (prevention)
Cancer Treatment (reducing side effects)
Canker Sores
Cardiovascular Disease
Cartilage Damage
Cholesterol (high)
Cholesterol (low)
Chronic Obstructive Pulmonary Disorder
Circulation (poor)
Circulation (to the brain)
Concentration (poor)
Concussions
Confusion
Congestive Heart Failure
Dementia
Depression
Diabetes
Dysmenorrhea
Eczema
Emotional Sensitivity
Endometriosis
Epilepsy
Exercise
Eye Problems
Eyes (red or itching)
Eyesight (poor)
Fat Metabolism (poor)
Fatigue
Fatty Liver Disease
Fibrosis
Free Radical Damage
Glaucoma
Gout
Hair (loss or thinning)
Hair Care (general)
Hashimoto's Disease
Hearing Loss
Heart (weakness)
Heart Fibrillation or Palpitations
Hepatitis
Hypertension
Infertility
Inflammation
Inflammatory Bowel Disorders
Irritability
Lou Gehrig's Disease
Lupus
Macular Degeneration
Memory and Brain Function
Menopause
Metabolic Syndrome
Migraine
Muscular Dystrophy
Nerve Damage
Neuralgia and Neuritis
Numbness
Osteoporosis
Parkinson's Disease
Peripheral Neuropathy
Pets (supplements for)
PMS Type D
PMS Type P
PMS Type S
Polyps
Post Partum Depression
Post Partum Weakness
Pregnancy (herbs and supplements for)
Psoriasis
Raynaud's Disease
Rheumatoid Arthritis
Rosacea
Schizophrenia
Seasonal Affective Disorder
Seborrhea
Seizures
Senility
Sickle Cell Anemia
Skin (dry and/or flaky)
Skin Care (general)
Spinal Disks
Strokes
Surgery (healing from)
Surgery (preparation for)
Thinking (cloudy)
Thrombosis
Triglycerides (high)
Triglycerides (low)
Vaginal Dryness