Leukocyte numbers and function in subjects eating n-3 enriched foods: selective depression of natural killer cell levels
2008

Effects of Eating Omega-3 Enriched Foods on Immune Cells

Sample size: 44 publication 10 minutes Evidence: moderate

Author Information

Author(s): Mukaro Violet R, Costabile Maurizio, Murphy Karen J, Hii Charles S, Howe Peter R, Ferrante Antonio

Primary Institution: University of South Australia

Hypothesis

Does varying levels of omega-3 fatty acids in diet affect leukocyte numbers and function?

Conclusion

Regular consumption of omega-3 enriched foods leads to lower natural killer cell numbers and increased lymphotoxin production, suggesting a reduced inflammatory response.

Supporting Evidence

  • Erythrocyte omega-3 levels were higher in subjects consuming n-3 enriched foods.
  • Natural killer cell numbers were lower in n-3 supplemented subjects.
  • Higher n-3 levels correlated with increased lymphotoxin production.
  • No significant changes in neutrophil, monocyte, T cell, or B cell numbers were observed.

Takeaway

Eating foods with omega-3 can lower certain immune cells that cause inflammation, which might help people with inflammatory diseases.

Methodology

A double-blind, placebo-controlled study where 44 healthy subjects consumed either standard or omega-3 enriched foods for six months.

Potential Biases

Potential bias in self-reported dietary intake and compliance with food consumption.

Limitations

Some samples were not viable or lost, affecting the total sample size.

Participant Demographics

Healthy non-smoking volunteers aged 20 to 65 years, overweight with specific health criteria.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1186/ar2426

Want to read the original?

Access the complete publication on the publisher's website

View Original Publication