Synopsis

Source of validity: Scientific
Rating (out of 5): 3

DHA and Rheumatoid Arthritis: Scientific Evidence

DHA (docosahexaenoic acid) is an omega-3 fatty acid found primarily in fish oils and is well-known for its anti-inflammatory properties. The use of omega-3 fatty acids, including DHA, in the management of rheumatoid arthritis (RA) is primarily based on scientific research rather than traditional medicine.

Several randomized controlled trials and meta-analyses have investigated the impact of omega-3 supplementation—often combining DHA and EPA (eicosapentaenoic acid)—on symptoms of RA. These studies generally demonstrate modest but clinically meaningful reductions in joint pain, morning stiffness, and the need for nonsteroidal anti-inflammatory drugs (NSAIDs) among RA patients supplementing with omega-3s. The anti-inflammatory effects are thought to arise from the ability of DHA and EPA to compete with arachidonic acid for incorporation into cell membranes and for enzymatic conversion to inflammatory mediators, resulting in a shift toward less inflammatory eicosanoids and increased production of specialized pro-resolving mediators.

While most studies use fish oil supplements containing both DHA and EPA, some evidence suggests that DHA may independently contribute to the anti-inflammatory benefits. However, the majority of the clinical evidence is for combinations rather than DHA alone, and effect sizes are moderate.

Current rheumatology guidelines recognize omega-3 fatty acids as a possible adjunct to standard therapy in RA, but they are not considered a replacement for disease-modifying antirheumatic drugs (DMARDs). Thus, while there is scientific support for the use of DHA (usually with EPA) in RA, the evidence is rated as moderate (3/5) due to variability in study quality and effect size.

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Other ingredients used for Rheumatoid Arthritis

Other health conditions supported by DHA (docosahexaenoic acid)

Products containing DHA (docosahexaenoic acid)

Thorne Advanced DHA
Vitabase Brain Support
Vitabase Complete Essential Fatty Acids
Pure Encapsulations DHA Ultimate
Pure Encapsulations DHA Ultimate
Pure Encapsulations EFA Essentials
Pure Encapsulations Energize Plus™ Pure Pack
Pure Encapsulations EPA/DHA
Pure Encapsulations EPA/DHA essentials 1,000 mg
Pure Encapsulations EPA/DHA essentials 1,000 mg
Vitabase EPA / DHA Omega-3
Pure Encapsulations EPA/DHA with Lemon
Pure Encapsulations EPA Ultimate
Klean Athlete Klean Omega ™
Douglas Laboratories Krill Oil
Pure Encapsulations Krill-Plex
Pure Encapsulations Krill-Plex
Metagenics MetaKids DHA
Metagenics MetaKids Nutrition Powder Chocolate
Metagenics MetaKids Nutrition Powder Vanilla
Pure Encapsulations NeuroMood Pure Pack
Pure Encapsulations O.N.E.™ Omega
Pure Encapsulations O.N.E.™ Omega
Thorne Omega-3 w/ CoQ10
Thorne Omega Superb Lemon Berry
Metagenics OmegaGenics Algae EPA-DHA 300 mg
Metagenics OmegaGenics EPA DHA 2400 Fish Oil
Metagenics OmegaGenics EPA-DHA 300 Lemon Lime
Metagenics OmegaGenics Fish Oil EPA-DHA 1000 mg
Metagenics OmegaGenics Fish Oil EPA-DHA 1000 mg
Metagenics OmegaGenics Fish Oil EPA-DHA 500 mg
Metagenics OmegaGenics Fish Oil EPA-DHA 500 mg
Metagenics OmegaGenics Fish Oil EPA-DHA 720 mg
Metagenics OmegaGenics Fish Oil EPA-DHA 720 mg
Metagenics OmegaGenics Fish Oil EPA-DHA 720 mg
Metagenics OmegaGenics Fish Oil Mega 10®
Metagenics OmegaGenics Neuro 1000 mg
Designs For Health OmegAvail™ Hi-Po
Designs For Health OmegAvail™ Hi-Po
Designs For Health OmegAvail™ Hi-Po Liquid
Designs For Health OmegAvail™ Liquid
Designs For Health OmegAvail™ Synergy
Designs For Health OmegAvail™ Synergy
Designs For Health OmegAvail™ TG1000
Designs For Health OmegAvail™ Ultra
Designs For Health OmegAvail™ Ultra
Designs For Health OmegAvail™ Ultra DHA
Designs For Health OmegAvail™ Ultra with Vitamin D3, K1 and K2
Douglas Laboratories Opti-EPA 500 ™ Cholesterol Free
Douglas Laboratories Opti-EPA 500 ™ Cholesterol Free
Metagenics PlusOne® Daily Prenatal Packs
Thorne Prenatal DHA
Pure Encapsulations Pro-Resolve Omega
Thorne Pro-Resolving Mediators
Integrative Therapeutics Pure Omega HP
Integrative Therapeutics Pure Omega Liquid
Integrative Therapeutics Pure Omega Ultra HP
Pure Encapsulations PureNutrients EPA/DHA
Douglas Laboratories QÜELL® FISH OIL DHA Ultra SPM
Douglas Laboratories QUELL Fish Oil ® - EPA/DHA Plus D
Metagenics SPM Active
Thorne Super EPA
Thorne Super EPA NSF
Thorne Super EPA Pro
Vitabase Super Omega-3
Douglas Laboratories Ultra G.L.A. Borage Oil
Douglas Laboratories Ultra G.L.A. Borage Oil
Pure Encapsulations Ultra Pure Pack
Pure Encapsulations VisionPro EPA/DHA/GLA
Pure Encapsulations VisionPro EPA/DHA/GLA
Metagenics Wellness Essentials Active Daily Packs
Metagenics Wellness Essentials Brain Health Daily Packs
Metagenics Wellness Essentials® Daily Packs
Metagenics Wellness Essentials Healthy Balance Daily Packs
Metagenics Wellness Essentials Men's Vitality Daily Packs
Metagenics Wellness Essentials Women's Daily Packs
Metagenics Wellness Essentials Women's Prime Daily Packs
Designs For Health XanthOmega™ Krill Oil