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Omega-3 Fatty Acids and Selenium: study protocols

12 study groups took Omega-3 Fatty Acids together with Selenium. These are the doses the studies gave. They are not a recommendation.

Omega-3 Fatty Acids: what the research found →

Dose per serving from research: Omega-3 Fatty Acids

12 study groups in 8 studies say how much Omega-3 Fatty Acids participants took a day.

These are the doses the studies gave. They are not a recommendation.

Most common: 500 mg to 1 g and 1 g to 2.5 g, 33% of 12 study groups each.

Daily doseStudy groups
250 mg or less
1
250 mg to 500 mg
3
500 mg to 1 g
4
1 g to 2.5 g
4

Dose per serving from research: Selenium

9 study groups in 7 studies say how much Selenium participants took a day.

These are the doses the studies gave. They are not a recommendation.

Most common: 25 mcg to 50 mcg, 44% of 9 study groups.

Daily doseStudy groups
10 mcg to 25 mcg
2
25 mcg to 50 mcg
4
50 mcg to 100 mcg
3

Commonly used together

12 of 12 study groups took Omega-3 Fatty Acids and Selenium with something else. Shown: what 3 or more different studies gave.

What was given together, not what works together.

Taken withStudy groups
Vitamin E
5
Copper
4
Glutathione
4
Manganese
4
Vitamin C
4
Zinc
4

12 study groups

Study
A randomized, double-masked study to evaluate the effect of omega-3 fatty acids supplementation in meibomian gland dysfunction
2013 · Group B (study oral supplement formulation, Brudysec 1.5 g) · Adults aged 23–85 years, both sexes, diagnosed with meibomian gland dysfunction
1.27 g27.5 mcg90 days33
Antioxidant and Anti-Inflammatory Effects of Oral Supplementation with a Highly-Concentrated Docosahexaenoic Acid (DHA) Triglyceride in Patients with Keratoconus: A Randomized Controlled Preliminary Study
2023 · DHA group · Adults aged 18 years or older with stage I–III keratoconus
602 mg27.5 mcg90 days19
Effects of a nutraceutical formulation based on the combination of antioxidants and ω-3 essential fatty acids in the expression of inflammation and immune response mediators in tears from patients with dry eye disorders
2013 · DEDG+S · Adults aged 23–80 years, both sexes, with mild-to-moderate dry eye disorders
845 mg18.3 mcg90 days—
Effects of a nutraceutical formulation based on the combination of antioxidants and ω-3 essential fatty acids in the expression of inflammation and immune response mediators in tears from patients with dry eye disorders
2013 · CG+S · Healthy adults aged 23–80 years, both sexes
845 mg18.3 mcg90 days—
Consumption of salmon v. salmon oil capsules: effects on n-3 PUFA and selenium status
2011 · 2 salmon oil capsules/d · Healthy volunteers; age and sex not specified
240 mg—8 weeks—
Consumption of salmon v. salmon oil capsules: effects on n-3 PUFA and selenium status
2011 · 4 salmon oil capsules/d · Healthy volunteers; age and sex not specified
470 mg—8 weeks—
Consumption of salmon v. salmon oil capsules: effects on n-3 PUFA and selenium status
2011 · 6 salmon oil capsules/d · Healthy volunteers; age and sex not specified
690 mg—8 weeks—
Supplementation-induced increase in circulating omega-3 serum levels is not associated with a reduction in depressive symptoms: Results from the MooDFOOD depression prevention trial
2020 · Supplement without F-BA · Adults aged 18–75 who were overweight (BMI 25–40) and had at least mild depressive symptoms but no current major depressive episode
1.41 g30 mcg1 year174
Supplementation-induced increase in circulating omega-3 serum levels is not associated with a reduction in depressive symptoms: Results from the MooDFOOD depression prevention trial
2020 · Supplement with F-BA · Adults aged 18–75 who were overweight (BMI 25–40) and had at least mild depressive symptoms but no current major depressive episode
1.41 g30 mcg1 year169
The impact of a standardized micronutrient supplementation on PCOS-typical parameters: a randomized controlled trial
2019 · Multinutrient supplementation group · Women aged 19–35 with polycystic ovary syndrome (PCOS)
500 mg70 mcg90 days30
Consumption of Hen Eggs Enriched with n-3 Polyunsaturated Fatty Acids, Selenium, Vitamin E and Lutein Incites Anti-Inflammatory Conditions in Young, Healthy Participants - A Randomized Study
2022 · 4Nutri group · Young, healthy participants; age range and sex not stated
1.03 g60 mcg3 weeks20
The medical food Souvenaid affects brain phospholipid metabolism in mild Alzheimer's disease: results from a randomized controlled trial
2017 · Test product (Souvenaid/Fortasyn Connect) · Adults aged 50 years or older with mild probable or possible Alzheimer’s disease
300 mg60 mcg4 weeks16
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