Fish Oil: study protocols
50 study groups say how much Fish Oil participants took a day. These are the doses the studies gave. They are not a recommendation.
Dose per serving from products
2,224 products in our catalogue print how much Fish Oil a serving holds.
Most common: 500 mg to 1 g, 41% of 2,224 products.
| Dose per serving | Products |
|---|---|
| 100 mg or less | 35 |
| 100 mg to 250 mg | 111 |
| 250 mg to 500 mg | 183 |
| 500 mg to 1 g | 918 |
| 1 g to 2.5 g | 824 |
| 2.5 g to 5 g | 143 |
| over 5 g | 10 |
Dose per serving from research
50 study groups in 34 studies say how much Fish Oil participants took a day.
These are the doses the studies gave. They are not a recommendation.
Most common: 2.5 g to 5 g, 40% of 50 study groups.
| Daily dose | Study groups |
|---|---|
| 250 mg or less | 2 |
| 250 mg to 500 mg | 2 |
| 500 mg to 1 g | 11 |
| 1 g to 2.5 g | 9 |
| 2.5 g to 5 g | 20 |
| 5 g to 10 g | 4 |
| over 10 g | 2 |
Commonly used together
16 of 50 study groups took Fish Oil with something else. Shown: what 3 or more different studies gave.
What was given together, not what works together.
| Taken with | Study groups |
|---|---|
| Omega-3 Fatty Acids | 9 |
| Docosahexaenoic Acid | 4 |
| Probiotics | 3 |
| Vitamin D | 3 |
50 study groups
| Study | |||
|---|---|---|---|
| Vitamin D and marine omega 3 fatty acid supplementation and incident autoimmune disease: VITAL randomized controlled trial 2022 · Vitamin D placebo/omega 3 active · Men aged 50 years or older and women aged 55 years or older; general older-adult population | 1 g | 5 years | — |
| Randomized, double-blind, placebo-controlled trial of fish oil and mustard oil in patients with suspected acute myocardial infarction: the Indian experiment of infarct survival--4 1997 · fish oil (group A) · Patients with suspected acute myocardial infarction; age and sex not stated | 1.08 g | 1 year | 122 |
| Synbiotic Supplementation with Probiotics and Omega-3 Fatty Acids Enhances Upper-Body Muscle Strength in Elite Swimmers: Evidence for Gut-Muscle Axis Modulation During Race-Pace Training 2025 · OMEGA + USRPT · Male elite sprint freestyle swimmers with at least 5 years of competitive experience | 1 g | 8 weeks | 10 |
| Randomised clinical trials of fish oil supplementation in high risk pregnancies. Fish Oil Trials In Pregnancy (FOTIP) Team 2000 · Fish oil, prophylactic trial: twin pregnancy · Pregnant women with twin pregnancies | 2.7 g | — | 579 |
| Randomised clinical trials of fish oil supplementation in high risk pregnancies. Fish Oil Trials In Pregnancy (FOTIP) Team 2000 · Fish oil, prophylactic trial: previous pregnancy-induced hypertension · Pregnant women with a high-risk pregnancy and a history of pregnancy-induced hypertension | 2.7 g | — | 386 |
| Fish Oil and Vitamin D Supplementations in Pregnancy Protect Against Childhood Croup 2023 · n-3 LCPUFA (fish oil) group · Pregnant women in the Danish population-based Copenhagen Prospective Studies on Asthma in Childhood 2010 mother-child cohort | 2.4 g | 32 weeks | 346 |
| Randomised clinical trials of fish oil supplementation in high risk pregnancies. Fish Oil Trials In Pregnancy (FOTIP) Team 2000 · Fish oil, prophylactic trial: previous intrauterine growth retardation · Pregnant women with a high-risk pregnancy and a history of intrauterine growth retardation | 2.7 g | — | 280 |
| Fish oil and aspirin effects on arteriovenous fistula function: Secondary outcomes of the randomised omega-3 fatty acids (Fish oils) and Aspirin in Vascular access OUtcomes in REnal Disease (FAVOURED) trial 2019 · fish oil · Adults with stage 4 or 5 chronic kidney disease receiving or expected to receive haemodialysis within 12 months and scheduled for arteriovenous fistula surgery | 4 g | 12 weeks | 270 |
| Randomised clinical trials of fish oil supplementation in high risk pregnancies. Fish Oil Trials In Pregnancy (FOTIP) Team 2000 · Fish oil, prophylactic trial: previous pre-term delivery · Pregnant women with a high-risk pregnancy and a previous pre-term delivery | 2.7 g | — | 232 |
| Randomised clinical trials of fish oil supplementation in high risk pregnancies. Fish Oil Trials In Pregnancy (FOTIP) Team 2000 · Fish oil, therapeutic trial: threatening pre-eclampsia · Pregnant women with threatening pre-eclampsia | 6.1 g | — | 79 |