The Study
Effects of Exercise and Omega-3-Supplemented, High-Protein Diet on Inflammatory Markers in Serum, on Gene Expression Levels in PBMC, and after Ex Vivo Whole-Blood LPS Stimulation in Old Adults
This study didn't prove that eating more protein and omega-3s stops inflammation in older people. It just saw that, after 8 weeks of eating differently and doing light exercise, some blood markers changed a little. But we can't say for sure if it was the food, the exercise, or just luck.
Analysis score
Maximum 90 for a randomized controlled trial.
Where the score came from
Older adults did exercise and ate more protein, with some also taking fish oil. Scientists checked their blood to see if inflammation went down.
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 575 / 100
Quality score
Participants are randomly assigned to treatment or control groups, minimizing bias. The gold standard for testing whether an intervention causes an effect.
Key takeaways
Summary
Based on the study abstract and findings.
- 1The changes suggest the body’s inflammation system is shifting, but it’s unclear if this makes people healthier — some anti-inflammatory markers went down, which might not always be good.
- 2After 8 weeks: everyone who ate more protein had less IL-1RA gene activity; those who also took omega-3 had lower IL-10 and IL-1RA in blood; men had lower IL-6, CCL-2, and HMGB-1; exercise alone lowered CCL-2 response to germs in test tubes.
Score breakdown, methodology, conflicts of interest, evidence analysis & raw study data
Publication
Journal
International Journal of Molecular Sciences
Year
2023
Authors
U. Haß, Sarah Heider, B. Kochlik, C. Herpich, O. Pivovarova-Ramich, K. Norman
Related Content
Claims (6)
In adults aged 70 and older, a combination of home-based strength training, weekly whole-body vibration, and a high-protein diet with 2.2 grams of omega-3 fatty acids daily is linked to lower levels of specific anti-inflammatory and pro-inflammatory proteins in the blood, with stronger reductions in pro-inflammatory proteins observed in men.
In adults aged 70 and older, following an 8-week high-protein diet without omega-3 supplements is associated with lower levels of IL1RN gene activity in immune cells from the blood.
In older adults, 8 weeks of home-based resistance exercise and whole-body vibration training without dietary supplements is associated with lower levels of CCL-2 released from blood cells when exposed to LPS in a laboratory setting, with greater reduction observed in men.
In older adults, eating a diet high in protein and omega-3 fatty acids for eight weeks lowers the blood levels of two anti-inflammatory molecules, IL-10 and IL-1RA, suggesting a change in immune regulation that cannot be explained solely by reduced pro-inflammatory signals.
In older adults, men and women respond differently to omega-3 and protein supplements: men show larger decreases in certain blood-based inflammatory markers, while women show more consistent decreases in the activity of specific immune-related genes.
Higher intake of omega-3 fatty acids is associated with lower levels of C-reactive protein and tumor necrosis factor alpha in the blood.
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.