Fish Oil (EPA and DHA)

Thursday, 12 September 2013


Updated: September 24 2013
What Is It?
Fish oil comes from tissues of fish. Fish oils contain the omega-3 fatty acids eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA). 
Omega-3 fatty acids are actually not produced by the fish itself; the acids accumulate when the fish are consuming either microalgae or prey fish that have accumulated omega-3 fatty acids, together with a high quantity of antioxidants such as iodide and selenium, from microalgae.

Fish Oil (EPA and DHA)

Sources of Creatine

Dietary source of EPA and DHA is cold water oily fish, such as salmon, herring, mackerel, anchovies, and sardines. 
Fish or marine oil supplements for quality prior to sale is not routinely tested neither the FDA nor any other federal or state agency. Problems of quality such as contamination, inaccurate listing of EPA and DHA levels, spoilage and formulation issues have been identified in fish oil supplements. [98]  

What Does Research (Human Studies) Say?

1. Decreases triglycerides (15-30% lower); large and reliable effect. [1,2,4-45]  
2. Decreases symptoms of depression; notable effect in some types of depression; not minor depression. [46-67]  
3. Decreases blood pressure (BP); small effect; affects people with hypertension (elevated BP). [2,21,25,33,41,68-70]  
4. Decreases inflammation (has anti-inflammatory effect); small and unreliable effect. [1,13,17,21,23,26,49,71-80]  
5. Increases HDL-C; small and unrelialbe effect; limited and mixed evidence; may increase HDL-C in unhealthy persons. [1,2,6,12,15-19,23-27,29,30,33,36,37,41-44,74,81-83]   
6. Decreases symptoms of ADHD in children; small effect; usually DHA > 300mg. [84-90]
7. Decreases TNF (also called TNF-alpha); small effect. [23,25,50,73,80,91]   

8. Decreases cortisol; small and unreliable effect. [26,92-94]  
9. Increases endothelial function such as vascular reactivity and blood vessel responsiveness; small effect. [21,23,95,96]  
10. Decreases platelet aggregation; small effect; limited evidence. [33,38,77,97] 
11. Decreases VLDL-C; small effect. [12,30,31,32,36,41]  
12. Increases infant birth weight; small effect. [105] 
13. Small reduction in risk of DNA damage, immunosuppression, and erythema in response to sunlight (i.e. fish oil acts as a sun protector); this was ween with high doses of EPA (1,800mg). [106,107,108] 
14. Small reduction in depressive symptoms in bipolar disorder (only in large magnitude depression). [58,66,109-111] 
15. Notable reduction in symptoms of systemic lupus erythematosus (SLE); up to 50% symptom reduction; benefit came from lower doses (160mg EPA and 140mg DHA). [45,112-116] 

Conclusion

Decreases triglycerides and symptoms of depression. May also help with muscle soreness.
Verdict: May be added to your supplement stack
Recommended Dosage (Used in the Studies)
1. Maintenance dose: 250 mg to 1 gram fish oil (not omega-3) / daily. [100-101]  
2. Reduction of soreness and increase of metabolic flux of muscle cells: 1 to 6 grams fish oil (not omega-3) / daily. [81,101-102]  
3. According to the FDA, it is safe to take up to 3000 mg of omega-3 per day, this means 10 pills/capsules that are 1000 mg each and contain 300 mg of omega-3 each. [104]     


Where Can You Buy This Supplement?

Amazon.com; Bodybuilding.com

Side Effects of This Supplement

1. Toxins: mercury, dioxins, and polychlorinated biphenyls (PCBs), and peroxides (spoiled fish oil). [99]  
2. Increased risk of prostate cancer; unreliable; might have been due to carcinogenic contamination; more research is needed though. [3]  

References

1. Supplementation with omega3 polyunsaturated fatty acids and all-rac alpha-tocopherol alone and in combination failed to exert an anti-inflammatory effect in human volunteers
2. Age- and dose-dependent effects of an eicosapentaenoic acid-rich oil on cardiovascular risk factors in healthy male subjects
3. Plasma Phospholipid Fatty Acids and Prostate Cancer Risk in the SELECT Trial.
4. ietary fish oil decreases C-reactive protein, interleukin-6, and triacylglycerol to HDL-cholesterol ratio in postmenopausal women on HRT
5. Omega-3 fatty acids and hypertriglyceridemia in HIV-infected subjects on antiretroviral therapy: systematic review and meta-analysis
6. A meta-analysis shows that docosahexaenoic acid from algal oil reduces serum triglycerides and increases HDL-cholesterol and LDL-cholesterol in persons without coronary heart disease
7. Effect of fish oil supplementation on serum triglycerides, LDL cholesterol and LDL subfractions in hypertriglyceridemic adults
8. Effects of eicosapentaenoic acid versus docosahexaenoic acid on serum lipids: a systematic review and meta-analysis
9. Treatment of rheumatoid arthritis with marine and botanical oils: influence on serum lipids
10. Metabolic and endocrine effects of long-chain versus essential omega-3 polyunsaturated fatty acids in polycystic ovary syndrome
11. Docosahexaenoic acid supplementation decreases liver fat content in children with non-alcoholic fatty liver disease: double-blind randomised controlled clinical trial
12. Effects of prescription omega-3-acid ethyl esters on fasting lipid profile in subjects with primary hypercholesterolemia
13. Dose-response effects of omega-3 fatty acids on triglycerides, inflammation, and endothelial function in healthy persons with moderate hypertriglyceridemia
14. Effect of 6 Weeks of n-3 fatty-acid supplementation on oxidative stress in Judo athletes
15. The effects of low dose n-3 fatty acids on serum lipid profiles and insulin resistance of the elderly: a randomized controlled clinical trial
16. n-3 LC-PUFA-enriched dairy products are able to reduce cardiovascular risk factors: a double-blind, cross-over study
17. Effects of moderate-dose omega-3 fish oil on cardiovascular risk factors and mood after ischemic stroke: a randomized, controlled trial
18. Effect of fish oil (n-3 polyunsaturated fatty acids) on plasma lipids, lipoproteins and inflammatory markers in HIV-infected patients treated with antiretroviral therapy: a randomized, double-blind, placebo-controlled study
19. Benefits of fish oil supplementation in hyperlipidemia: a systematic review and meta-analysis
20. Fish oil supplementation in type 2 diabetes: a quantitative systematic review
21. Fish oil supplementation improves endothelial function in normoglycemic offspring of patients with type 2 diabetes
22. Effects of omega-3 fatty acid supplements on serum lipids, apolipoproteins and malondialdehyde in type 2 diabetes patients
23. Omega-3 fatty acid supplementation improves vascular function and reduces inflammation in obese adolescents
24. Moderate doses of EPA and DHA from re-esterified triacylglycerols but not from ethyl-esters lower fasting serum triacylglycerols in statin-treated dyslipidemic subjects: Results from a six month randomized controlled trial
25. Additive benefits of long-chain n-3 polyunsaturated fatty acids and weight-loss in the management of cardiovascular disease risk in overweight hyperinsulinaemic women
26. Effects of omega-3 fatty acids on postprandial triglycerides and monocyte activation
27. Prescription omega-3-acid ethyl esters reduce fasting and postprandial triglycerides and modestly reduce pancreatic β-cell response in subjects with primary hypertriglyceridemia
28. Acute fish oil and soy isoflavone supplementation increase postprandial serum (n-3) polyunsaturated fatty acids and isoflavones but do not affect triacylglycerols or biomarkers of oxidative stress in overweight and obese hypertriglyceridemic men
29. Efficacy and tolerability of adding prescription omega-3 fatty acids 4 g/d to simvastatin 40 mg/d in hypertriglyceridemic patients: an 8-week, randomized, double-blind, placebo-controlled study
30. Effects of adding prescription omega-3 acid ethyl esters to simvastatin (20 mg/day) on lipids and lipoprotein particles in men and women with mixed dyslipidemia
31. A controlled study on the effects of n-3 fatty acids on lipid and glucose metabolism in non-insulin-dependent diabetic patients
32. Supplementation with n-3 fatty acids reduces triglycerides but increases PAI-1 in non-insulin-dependent diabetes mellitus
33. Effects of a small quantity of omega-3 fatty acids on cardiovascular risk factors in NIDDM. A randomized, prospective, double-blind, controlled study
34. Effects of fish oil supplementation on glucose and lipid metabolism in NIDDM
35. Effects of fish oil supplementation on glucose and lipid metabolism in NIDDM
36. The hypotriglyceridemic effect of fish oil in adult-onset diabetes without adverse glucose control
37. Effect of omega 3 fatty acid on plasma lipids, cholesterol and lipoprotein fatty acid content in NIDDM patients
38. Effects of fish oil supplements in NIDDM subjects. Controlled study
39. Effect of fish oil concentrate on lipoprotein composition in NIDDM
40. Moderate intake of n-3 fatty acids for 2 months has no detrimental effect on glucose metabolism and could ameliorate the lipid profile in type 2 diabetic men. Results of a controlled study
41. A comparison of fish oil or corn oil supplements in hyperlipidemic subjects with NIDDM
42. A comparison of the effects of n-3 fatty acids from linseed oil and fish oil in well-controlled type II diabetes
43. Fish oil supplementation alters circulating eicosanoid concentrations in young healthy men
44. Effects of dietary modification and fish oil supplementation on dyslipoproteinemia in pediatric systemic lupus erythematosus
45. Fish oil in lupus nephritis: clinical findings and methodological implications

46. Meta-analysis of the effects of eicosapentaenoic acid (EPA) in clinical trials in depression
47. Omega-3 for bipolar disorder: meta-analyses of use in mania and bipolar depression
48. Complementary and alternative medicine for the treatment of major depressive disorder
49. Omega-3 supplementation lowers inflammation and anxiety in medical students: a randomized controlled trial
50. Omega-3 supplementation lowers inflammation in healthy middle-aged and older adults: a randomized controlled trial
51. The Mothers, Omega-3, and Mental Health Study: a double-blind, randomized controlled trial
52. EPA but not DHA appears to be responsible for the efficacy of omega-3 long chain polyunsaturated fatty acid supplementation in depression: evidence from a meta-analysis of randomized controlled trials
53. Omega-3 fatty acids as a treatment for perinatal depression: randomized double-blind placebo-controlled trial
54. Omega-3 fatty acids and supportive psychotherapy for perinatal depression: a randomized placebo-controlled study
55. Supplementation of a low dose of DHA or DHA+AA does not prevent peripartum depressive symptoms in a small population based sample
56. Effect of maternal docosahexaenoic acid supplementation on postpartum depression and information processing
57. Omega-3 fatty acids for major depressive disorder during pregnancy: results from a randomized, double-blind, placebo-controlled trial
58. Efficacy of ethyl-eicosapentaenoic acid in bipolar depression: randomised double-blind placebo-controlled study
59. Addition of omega-3 fatty acid to maintenance medication treatment for recurrent unipolar depressive disorder
60. A double-blind, placebo-controlled study of the omega-3 fatty acid docosahexaenoic acid in the treatment of major depression
61. A dose-ranging study of the effects of ethyl-eicosapentaenoate in patients with ongoing depression despite apparently adequate treatment with standard drugs
62. Ethyl-eicosapentaenoic acid for the treatment of psychological distress and depressive symptoms in middle-aged women: a double-blind, placebo-controlled, randomized clinical trial
63. Fish oil supplementation in the treatment of major depression: a randomised double-blind placebo-controlled trial
64. Omega-3 fatty acids in major depressive disorder. A preliminary double-blind, placebo-controlled trial
65. The role of essential fatty acids in chronic fatigue syndrome. A case-controlled study of red-cell membrane essential fatty acids (EFA) and a placebo-controlled treatment study with high dose of EFA
66. Double-blind, randomized, placebo-controlled trials of ethyl-eicosapentanoate in the treatment of bipolar depression and rapid cycling bipolar disorder
67. Cognitive and physiological effects of Omega-3 polyunsaturated fatty acid supplementation in healthy subjects

68. Blood pressure decrease with ingestion of a soya product (kinako) or fish oil in women with the metabolic syndrome: role of adiponectin and nitric oxide
69. A systematic review of fish-oil supplements for the prevention and treatment of hypertension
70. Moderate consumption of fatty fish reduces diastolic blood pressure in overweight and obese European young adults during energy restriction
71. Influence of very long-chain n-3 fatty acids on plasma markers of inflammation in middle-aged men

72. The effects of eicosapentaenoic acid-fortified food on inflammatory markers in healthy subjects--A randomized, placebo-controlled, double-blind study
73. No effect of fish oil supplementation on serum inflammatory markers and their interrelationships: a randomized controlled trial in healthy, middle-aged individuals
74. D
ietary fish oil decreases C-reactive protein, interleukin-6, and triacylglycerol to HDL-cholesterol ratio in postmenopausal women on HRT

75. Treatment for 2 mo with n 3 polyunsaturated fatty acids reduces adiposity and some atherogenic factors but does not improve insulin sensitivity in women with type 2 diabetes: a randomized controlled study
76. The Effects of Fish Oil Supplementation on Markers of Inflammation in Chronic Kidney Disease Patients
77. Effect of Omega-3 fatty acid supplementation on markers of platelet and endothelial function in patients with peripheral arterial disease
78. Effect of n-3 fatty acids on patients with advanced lung cancer: a double-blind, placebo-controlled study
79. Effects of marine omega-3 fatty acids on serum systemic and vascular inflammation markers and oxidative stress in hemodialysis patients
80. Docosahexaenoic acid ingestion inhibits natural killer cell activity and production of inflammatory mediators in young healthy men

81. Combining fish-oil supplements with regular aerobic exercise improves body composition and cardiovascular disease risk factors
82. Combined effects of aerobic exercise and omega-3 fatty acids in hyperlipidemic persons
83. Effects of purified eicosapentaenoic and docosahexaenoic acids on glycemic control, blood pressure, and serum lipids in type 2 diabetic patients with treated hypertension

84. Omega-3 fatty acid supplementation for the treatment of children with attention-deficit/hyperactivity disorder symptomatology: systematic review and meta-analysis
85. EFA supplementation in children with inattention, hyperactivity, and other disruptive behaviors
86. EPA supplementation improves teacher-rated behaviour and oppositional symptoms in children with ADHD
87. Effect of supplementation with polyunsaturated fatty acids and micronutrients on learning and behavior problems associated with child ADHD
88. Omega-3 fatty acid treatment of children with attention-deficit hyperactivity disorder: A randomized, double-blind, placebo-controlled study
89. A randomized double-blind, placebo-controlled study of the effects of supplementation with highly unsaturated fatty acids on ADHD-related symptoms in children with specific learning difficulties
90. A randomized, double-blind, placebo-controlled trial of docosahexaenoic acid supplementation in children with attention-deficit/hyperactivity disorder

91. Effect of eicosapentaenoic and docosahexaenoic acid on resting and exercise-induced inflammatory and oxidative stress biomarkers: a randomized, placebo controlled, cross-over study
92. Effects of fish oil on the neuro-endocrine responses to an endotoxin challenge in healthy volunteers
93. Blunting the response to endotoxin in healthy subjects: effects of various doses of intravenous fish oil
94. Fish oil supplementation augments post-exercise immune function in young males
95. Do long-chain n-3 fatty acids reduce arterial stiffness? A meta-analysis of randomised controlled trials
96. Effect of low doses of long-chain n-3 PUFAs on endothelial function and arterial stiffness: a randomized controlled trial
97. Early impact of prescription Omega-3 fatty acids on platelet biomarkers in patients with coronary artery disease and hypertriglyceridemia
98. Product Review: Fish Oil and Omega-3 Fatty Acid Supplements Review (Including Krill, Algae, and Calamari Oil)
99. Description of the processes in the value chain and risk assessment of decomposition substances and oxidation products in fish oils

100. Omega-3 fatty acids and cardiovascular disease: new recommendations from the American Heart Association.
101. Fish intake, contaminants, and human health: evaluating the risks and the benefits.
102. Moderate intake of n-3 fatty acids for 2 months has no detrimental effect on glucose metabolism and could ameliorate the lipid profile in type 2 diabetic men. Results of a controlled study.
103. Effect of dietary fish oil on body fat mass and basal fat oxidation in healthy adults.
104. Can you overdose on DHA and EPA?
105. Marine oil, and other prostaglandin precursor, supplementation for pregnancy uncomplicated by pre-eclampsia or intrauterine growth restriction
106. Randomized controlled trial of oral omega-3 PUFA in solar-simulated radiation-induced suppression of human cutaneous immune responses
107. Effect of eicosapentaenoic acid, an omega-3 polyunsaturated fatty acid, on UVR-related cancer risk in humans. An assessment of early genotoxic markers
108. Dietary fish-oil supplementation in humans reduces UVB-erythemal sensitivity but increases epidermal lipid peroxidation
109. Omega-3 fatty acid treatment, with or without cytidine, fails to show therapeutic properties in bipolar disorder: a double-blind, randomized add-on clinical trial
110. Omega 3 fatty acids in bipolar disorder: a preliminary double-blind, placebo-controlled trial
111. Omega-3 fatty acid treatment and T(2) whole brain relaxation times in bipolar disorder


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