Docosahexaenoic Acid (DHA)

Does docosahexaenoic acid (dha) work?

Overall Effectiveness Rating for Docosahexaenoic Acid (DHA)

The overall effectiveness rating for docosahexaenoic acid (dha) is 1.8 out of 3. This rating means there is some evidence that using docosahexaenoic acid (dha) may lead to positive results. This rating also means that some evidence does not back up all claims. Below you can find individual ratings for specific claims.

Overall Confidence Rating for Docosahexaenoic Acid (DHA)

There are 17 studies in the database on docosahexaenoic acid (dha); the confidence rating is 51. A score above 80 means the effectiveness rating for this supplement is reliable. A score under 80 means there is insufficient evidence to ensure a reliable effectiveness rating. Note, this rating is for docosahexaenoic acid (dha) as a whole. There are also individual ratings for the claims below.

Products Containing Docosahexaenoic Acid (DHA)

Products Containing Docosahexaenoic Acid (DHA)
Omega Jym
Full list of all 1 products containing Docosahexaenoic Acid (DHA).

Individual Claims

The overall ratings above do no necessarily reflect each claim about docosahexaenoic acid (dha). Individual claims can have higher or lower ratings. For example, some supplements may have a lot of backing for one claim, but be completely useless for another. Click on claims below for more information.

Performance Claims Effectiveness Rating Confidence Rating
improve cardiovascular endurance
improve running performance

Cardiovascular Health Claims Effectiveness Rating Confidence Rating
lower blood pressure
lower LDL (bad) cholesterol levels
increase HDL (good) cholesterol levels
lower total cholesterol levels
lower triglyceride levels

Recovery Claims Effectiveness Rating Confidence Rating
improve recovery
reduce muscle soreness

Mental Health Claims Effectiveness Rating Confidence Rating
improve cognitive ability
improve memory

General Health Claims Effectiveness Rating Confidence Rating
improve insulin sensitivity
lower fasting glucose


Title of Study
An 18-mo randomized, double-blind, placebo-controlled trial of DHA-rich fish oil to prevent age-related cognitive decline in cognitively normal older adults
Association between cognitive function and supplementation with omega-3 PUFAs and other nutrients in ≥ 75 years old patients: A randomized multicenter study
Circulating triacylglycerol and apoE levels in response to EPA and docosahexaenoic acid supplementation in adult human subjects
DHA supplementation improved both memory and reaction time in healthy young adults: a randomized controlled trial
DHA-rich fish oil lowers heart rate during submaximal exercise in elite Australian Rules footballers
Dietary alpha-linolenic acid, EPA, and DHA have differential effects on LDL fatty acid composition but similar effects on serum lipid profiles in normolipidemic humans
Docosahexaenoic acid-concentrated fish oil supplementation in subjects with mild cognitive impairment (MCI): a 12-month randomised, double-blind, placebo-controlled trial
Effect of 2-y n-3 long-chain polyunsaturated fatty acid supplementation on cognitive function in older people: a randomized, double-blind, controlled trial
Effect of long-term omega 3 polyunsaturated fatty acid supplementation with or without multidomain intervention on cognitive function in elderly adults with memory complaints (MAPT): a randomised, placebo-controlled trial
Effect of supplementation with long-chain ω-3 polyunsaturated fatty acids on behavior and cognition in children with attention deficit/hyperactivity disorder (ADHD): a randomized placebo-controlled intervention trial
Effects of a diet integration with an oily emulsion of DHA-phospholipids containing melatonin and tryptophan in elderly patients suffering from mild cognitive impairment
Effects of dietary alpha-linolenic acid, eicosapentaenoic acid or docosahexaenoic acid on parameters of glucose metabolism in healthy volunteers
Effects of iron and n-3 fatty acid supplementation, alone and in combination, on cognition in school children: a randomized, double-blind, placebo-controlled intervention in South Africa
Effects of n-3 fatty acids, EPA v. DHA, on depressive symptoms, quality of life, memory and executive function in older adults with mild cognitive impairment: a 6-month randomised controlled trial
Effects of Short-Term Docosahexaenoic Acid Supplementation on Markers of Inflammation after Eccentric Strength Exercise in Women
Omega-3 fatty acid supplementation does not improve maximal aerobic power, anaerobic threshold and running performance in well-trained soccer players
The n-3 Polyunsaturated Fatty Acids Supplementation Improved the Cognitive Function in the Chinese Elderly with Mild Cognitive Impairment: A Double-Blind Randomized Controlled Trial