Skipping breakfast might have an impact on cognitive functions, such as interference, which is a basic capacity of executive functions that denotes the possibility of controlling an automated response. This… Click to show full abstract
Skipping breakfast might have an impact on cognitive functions, such as interference, which is a basic capacity of executive functions that denotes the possibility of controlling an automated response. This study aimed to analyze the association between nutritional quality of breakfast and cognitive interference in a sample of university students. A cross-sectional study was conducted, a total of 422 students between 18 and 25 years participated. Cognitive interference was assessed with the Stroop Test. Breakfast was assessed with a questionnaire assigning a score for each serving of each food group that was consumed. Logistic regression models were performed. The performance in cognitive tasks was slower in those who had a poor breakfast (32.9 ± 6 vs 29.3 ± 6 s, p < 0.050). Poor cognitive interference was greater in students with poor breakfast (53% versus 23%, p = 0.001). A slower word reading was associated with skipping vegetables (OR: 2.78, 95% CI: 0.09–2.13), and cereals (OR: 1.70, 95% CI: 1.03–2.81). Wrong color identification was associated with skipping fruits (OR: 1.55, 95% CI: 1.43–1.99) and animal protein sources (OR: 1.63, 95% CI: 1.07–2.49). Skipping fat-rich cereals was a protector factor (OR: 0.55, 95% CI: 0.36–0.85). Difficulty in the ability to inhibit interference was associated with skipping vegetables (OR: 2.72, 95% CI: 1.25–4.80) and cereals (OR: 2.65, 95% CI: 1.28–4.68). The nutritional quality of breakfast was associated with the time spent answering the Stroop test, but not with cognitive interference.
               
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