The Study
Omega-3 Fatty Acids Effects on Inflammatory Biomarkers and Lipid Profiles among Diabetic and Cardiovascular Disease Patients: A Systematic Review and Meta-Analysis
This study looked at lots of small experiments where people took omega-3 pills and measured changes in their blood. It found that omega-3 often lowered some bad fats and raised others, but it didn't prove omega-3 makes people healthier or stops heart disease—it just shows a pattern in the numbers.
Analysis score
Maximum 100 for a systematic review with meta-analysis.
Where the score came from
This study looked at whether taking fish oil supplements changes blood fats and sugar levels in people with diabetes or heart disease.
Where does this study sit?
Reviews of RCTs (Meta-analyses)
Max 100Randomized Trials
Max 90Reviews of Cohort Studies
Max 85Cohort Studies
Max 72Reviews of Case-Control Studies
Max 63Case-Control Studies
Max 58Cross-Sectional & Case Series
Max 50Expert Opinion
Max 553 / 100
Quality score
The highest quality evidence. Systematic reviews and meta-analyses that pool randomized controlled trials, giving the most reliable summary of experimental evidence.
Key takeaways
Summary
Based on the study abstract and findings.
- 1These changes are small but statistically significant — higher blood sugar and LDL could be harmful, while lower triglycerides might help, but the overall effect is mixed and unclear for health outcomes.
- 2In diabetics: blood sugar went up by 16 mg/dL, triglycerides went down by 45 mg/dL, and good cholesterol (HDL) went down by 2 mg/dL.
- 3In heart disease patients: bad cholesterol (LDL) went up by 2 mg/dL.
- 4Inflammation markers didn't change.
Score breakdown, methodology, conflicts of interest, evidence analysis & raw study data
Publication
Journal
Scientific Reports
Year
2019
Authors
Z. Natto, Wael Yaghmoor, Heba K. Alshaeri, T. V. Van Dyke
Related Content
Claims (7)
Consuming omega-3 fatty acids lowers levels of IL-6, TNF-alpha, and CRP in people with metabolic or cardiovascular disease after physical exertion.
In people with cardiovascular disease, taking at least 1000 mg per day of omega-3 fatty acids from EPA and DHA is linked to a small increase in LDL cholesterol by 2.1 mg/dL, with no measurable change in triglycerides, HDL cholesterol, or Apo B.
In people with diabetes, taking omega-3 fatty acid supplements is linked to an 8.0 mg/dL decrease in apolipoprotein A-II, a protein found in HDL cholesterol particles.
In adults with diabetes, taking at least 1000 mg of omega-3 fatty acids daily for four weeks or longer is linked to lower fasting blood glucose, lower triglycerides, and lower HDL cholesterol.
Taking omega-3 supplements does not lower levels of C-reactive protein, TNF-alpha, or HbA1c in people with diabetes, even though these fats are thought to reduce inflammation.
In people with cardiovascular disease, taking omega-3 fatty acid supplements does not change apolipoprotein B, triglycerides, or HDL cholesterol levels significantly, but may slightly raise LDL cholesterol, resulting in minimal overall benefit for lipid profiles.
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.