Effects of a High EPA Multinutrient Supplement on Negative Affect in Young Adults.

Inclusion Criteria: * Age 18-29 years * GAD-7 Score ≥ 5 * PHQ-8 Score ≥ 4 * English language fluency. * Overall good health. Exclusion Criteria: * Self reported BMI ≥ 30 kg/m\^2. * Current tobacco smoker. * Diagnosis of anxiety, depression/major depressive disorder episode, psychosis, schizophrenia, bipolar disorder, eating disorders, haemophilia, or life-threatening disease during the preceding six months from the beginning of the trial. * Use of antidepressant drugs during the preceding six months from the beginning of the trial. * Participation to psychological and/or behavioural interventions during the preceding six months from the beginning of the trial. * Inability to ingest pills. * Pregnancy. * Breastfeeding. * Known allergy or intolerance to LCn-3 PUFAs, seafood and any of the constituents of the supplement under investigation. * High intake (more than twice per week) of oily fish (e.g. herring, pilchards, salmon, swordfish, sardines, sprats, trout or mackerel). * Use of fish oil supplements during the preceding six months from the beginning of the trial. * Inability to participate in the study for 12 consecutive weeks.