Assessing Omega-3 Intake in Sport: the Brief Food Frequency Questionnaire and the Omega-3 Index in Collegiate Women Soccer Players

J Athl Train. 2022 Nov 1;57(11-12):1079-1084. doi: 10.4085/1062-6050-0549.21.

Abstract

Context: Omega-3 fatty acids modulate inflammatory processes and are considered beneficial for sport populations, highlighting a need to assess omega-3 intake in a practical manner. Food frequency questionnaires (FFQs) are inexpensive, noninvasive tools aimed at evaluating nutrient intakes such as omega-3 fatty acids. In healthy adults, a tailored, brief FFQ for estimating omega-3 intake was associated with the erythrocyte omega-3 fatty acid level, a biomarker for omega-3 tissue status and indicative of intake. However, the association between a brief omega-3 FFQ and erythrocyte levels, particularly the Omega-3 Index (eicosapentaenoic acid [EPA], docosahexaenoic acid [DHA], and EPA + DHA), has yet to be explored in a sport population.

Objective: To examine the association between omega-3 intake using a brief FFQ and the Omega-3 Index in collegiate women soccer players.

Design: Cross-sectional study.

Setting: University sport team.

Patients or other participants: Thirty-one National Collegiate Athletic Association Division I collegiate women soccer players.

Main outcome measure(s): The brief omega-3 FFQ assessed dietary omega-3 intake: DHA and EPA. The OmegaQuant blood test measured erythrocyte omega-3 fatty acid (EPA, DHA) and Omega-3 Index (EPA + DHA) levels.

Results: Brief FFQ intakes of EPA, DHA, and EPA + DHA were positively correlated with the erythrocyte EPA (r = 0.48, P = .007), DHA (r = 0.73, P < .001), and Omega-3 Index (r = 0.73, P < .001).

Conclusions: In a sample of collegiate women soccer players, the brief omega-3 FFQ was correlated with erythrocyte omega-3 fatty acid levels and may offer health practitioners a practical tool for assessing omega-3 intake in this collegiate sport population.

Keywords: athletes; docosahexaenoic acid; eicosapentaenoic acid; nutrition.

MeSH terms

  • Adult
  • Cross-Sectional Studies
  • Docosahexaenoic Acids
  • Eicosapentaenoic Acid
  • Fatty Acids, Omega-3*
  • Female
  • Humans
  • Soccer*
  • Sports*
  • Surveys and Questionnaires
  • Universities

Substances

  • Fatty Acids, Omega-3
  • Docosahexaenoic Acids
  • Eicosapentaenoic Acid

Grants and funding

Research Electronic Data Capture (REDCap) at the University of Kansas Medical Center is supported by a Clinical and Translational Science Award grant from the National Center for Research Resources and National Center for Advancing Translational Sciences awarded to the University of Kansas Medical Center for Frontiers: University of Kansas Clinical and Transitional Science Institute.