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. Author manuscript; available in PMC: 2022 Aug 23.
Published in final edited form as: J Clin Psychiatry. 2016 Oct;77(10):e1301–e1308. doi: 10.4088/JCP.15r09925

Table 3.

Randomized Controlled Trials of PUFA Supplementation in Bipolar Disorder

Study Design Dose Duration, wk No. of Patients Outcomes Results
Stoll et al, 199937 RCT
DB, PC
EPA 6.2 and DHA 3.4 g/d vs placebo caps 16   44 HDRS
YMRS
Significant reduction in HDRS scores in omega-3 group, but not YMRS scores
Chiu et al, 200538 RCT
DB, PC
EPA 440 mg and DHA 240 mg/d vs olive oil placebo caps   4   15 YMRS Reduced scores in both groups, but no significant difference between groups
Keck et al, 200639 RCT
DB, PC
EPA 6 g/d vs placebo caps 16 121 IDS-C
YMRS
No significant difference between groups in any outcome
Frangou et al, 200640 RCT
DB, PC
EPA 1 or 2 g/d vs placebo caps 12   75 HDRS
YMRS
Significant reduction in both EPA groups as compared to placebo in HDRS scores, but not on YMRS scores
Frangou et al, 200741 RCT
DB, PC
EPA 2 g/d vs liquid paraffin 12   14 HDRS No significant difference between groups
Gracious et al, 201042 RCT
DB, PC
Flaxseed oil (ALA) 6.6 g/d vs placebo 16   51 CDRS-R
YMRS
No significant difference between groups
Murphy et al, 201243 RCT
DB, PC
EPA 3 g/d + cytidine 2 g/d vs EPA 3 g/d + placebo vs placebo + placebo 16   45 MADRS
YMRS
No significant difference between groups

Abbreviations: ALA = α-linolenic acid, CDRS-R = Child Depression Rating Scale-Revised, DB = double-blind, DHA = docosahexaenoic acid, EPA = eicosapentaenoic acid, HDRS = Hamilton Depression Rating Scale, IDS-C = Inventory of Depressive Symptomatology, MADRS = Montgomery-Asberg Depression Rating Scale, PC = placebo-controlled, PUFA = polyunsaturated fatty acid, RCT = randomized controlled trial, YMRS = Young Mania Rating Scale.