Effect of walnut consumption on neuropsychological development in healthy adolescents: a multi-school randomised controlled trial

Pinar, Ariadna; Gignac, Florence; Fernández–Barrés, Sílvia; Romaguera, Dora; Sala‐Vila, Aleix; Lázaro, Iolanda; Ranzani, Otávio T.; Persavento, Cecilia; Delgado, A Retamero; Carol, Albert; Torrent, Jaume; Gonzalez, Judith; Roso, Eduard; Barrera-Gómez, Jose; López-Vicente, Mònica; Boucher, Olivier; Nieuwenhuijsen, Mark; Turner, Michelle C.; Burgaleta, Miguel; Canals, Josefina; Arija, Victoria; Basagaña, Xavier; Ros, Emilio; Salas‐Salvadó, Jordi; Sunyer, Jordi; Júlvez, Jordi

doi:10.1016/j.eclinm.2023.101954

Cited by 4 publications

(2 citation statements)

References 46 publications

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“…This is a cross-sectional study using baseline data from an existing database provided by the WALNUTs project (5,6). The original aim of WALNUTs cohort was the assessment of a nutritional intervention based on daily walnut intake and its impact on cognitive function.…”

Section: Study Participants and Designmentioning

confidence: 99%

“…The other confounding variables related with child and maternal characteristics and lifestyle factors were assessed by the administration of a child and parental self-reported general questionnaire during baseline assessments. Finally, a fieldwork nurse measured child anthropometrical characteristics following standardized proceedings (5,6).…”

Section: Study Variablesmentioning

confidence: 99%

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The Association between Mediterranean Diet Adherence and Behavioral Outcomes among Urban Teenagers

Julvez,

Pinar,

Ruiz

et al. 2024

Preprint

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Objective: We examined the association between Mediterranean diet and psychosocial functioning among high school students from Barcelona, Spain. Methods: This is a sample of healthy teenagers (11 to 16 years old) recruited during 2016–2017 from 12 high schools in Barcelona. The 622 participants responded the Mediterranean Diet Quality Index for Children and Adolescents (KIDMED) and the Strengths and Difficulties Questionnaire (SDQ). Multivariable linear regression models were applied to assess the associations between KIDMED and SDQ scores and adjusting for potential confounders. Results: KIDMED score was negatively associated with SDQ total problem score (β = -0.20 (95% CI = -0.38; -0.02)) and conduct problem score (β = -0.08 (95% CI = -0.14; -0.03)). KIDMED score was positively associated with prosocial behavior subscale score (0.08 (0.03; 0.14)). Conclusion: Adherence to Mediterranean diet is beneficial for some domains of psychosocial functioning. Dietary patterns are important for mental health during the adolescence.

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Section: Study Participants and Designmentioning

confidence: 99%

Section: Study Variablesmentioning

confidence: 99%

The Association between Mediterranean Diet Adherence and Behavioral Outcomes among Urban Teenagers

Julvez,

Pinar,

Ruiz

et al. 2024

Preprint

View full text Add to dashboard Cite

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Original article: adolescent dietary patterns derived using principal component analysis and neuropsychological functions: a cross-sectional analysis of Walnuts Smart Snack cohort

Ayala-Aldana,

Pinar-Martí,

Ruiz-Rivera

et al. 2024

Eur Child Adolesc Psychiatry

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A balanced diet is relevant for neuropsychological functioning. We aimed to analyze the association between dietary patterns and neuropsychological outcomes in a sample of healthy adolescents of the Walnuts Smart Snack (WSS) cohort from Barcelona city. We performed principal components analysis (PCA) to determine dietary patterns in the adolescent sample using a food frequency questionnaire (60 items). Multiple linear regression models were performed to analyze the association between PCA dietary patterns with neuropsychological outcomes: Strengths and Difficulties (SDQ) externalizing and internalizing scores, Attention Network Test (ANT) Impulsivity Index and Emotional Recognition Task (ERT) scores. We additionally adjusted the models for child sex, age, body mass index (BMI), physical activity and maternal education. Six dietary patterns were identified in PCA analyses. “low consumption of calorie-dense foods” dietary pattern had a negative association (protective) with the both SDQ outcomes (p value < 0.001) and “Nuts” dietary pattern showed a negative (protective) association with impulsivity index $$\:{(\beta\:}_{1}$$ ( β 1 = −24.60, 95% CI = −36.80, −12.41, p value < 0.001). Overall, our main results suggest that healthy dietary patterns, including higher intakes of “nuts” and a preference of “low consumption of calorie-dense foods” dietary patterns, could provide a beneficial association with neuropsychological functions during the adolescence period. The associations may include improvements of externalizing and internalizing problem symptoms, and impulsivity.

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Dietary fat, telomere length and cognitive function: unravelling the complex relations

Mostafa,

Gutierrez-Tordera,

Mateu-Fabregat

et al. 2023

Current Opinion in Lipidology

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Purpose of review The review aims to explore the recent evidence on the associations between different dietary fat intake and cognitive function, and to understand the role of telomere length in this relationship. Recent findings Clinical and preclinical studies included in this review suggest that dietary fat intake is associated with cognitive function and telomere length. High intake of saturated fats and trans fats, commonly found in ultra-processed foods, appears to have negative effects on cognitive function and telomere length, while other dietary fats, such as omega-3 polyunsaturated fatty acids and monounsaturated fatty acids are associated with improved cognitive performance and reduced telomere attrition. Controversial results related to omega-6 polyunsaturated fatty acids intake and its impact on cognitive function were found. Dietary fats may affect telomere length and cognition through oxidative stress, inflammation, and insulin resistance. Summary The current review illustrated the relationship between dietary fat and cognitive function by focusing on the role of telomere length as a potential intermediator. More future studies are required, however, in order to develop targeted interventions aimed at preserving cognitive well-being throughout life.

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Effect of walnut consumption on neuropsychological development in healthy adolescents: a multi-school randomised controlled trial

Cited by 4 publications

References 46 publications

The Association between Mediterranean Diet Adherence and Behavioral Outcomes among Urban Teenagers

The Association between Mediterranean Diet Adherence and Behavioral Outcomes among Urban Teenagers

Original article: adolescent dietary patterns derived using principal component analysis and neuropsychological functions: a cross-sectional analysis of Walnuts Smart Snack cohort

Dietary fat, telomere length and cognitive function: unravelling the complex relations

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