Financiado en parte por Almond Board of California
Long-term effects of almond consumption on cognitive performance and brain vascular function: a randomized crossover trial in overweight/obese adults with prediabetes
Adams MS, Mensink RP, Plat J, Gravesteijn E, Joris PJ
European journal of clinical nutrition · 0 citas
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Cómo se estudió
- Diseño
- Ensayo controlado aleatorizado (indexado por PubMed)
- Estudiado en
- Personas
- Resultado principal
- Marcadores de salud y funcionamiento
- Consumo medido con
- Comida provista por los investigadores
Quién lo pagó
- Financiación
- Financiado por la industria
- Grupo de la industria
- Almond Board of California
Según 1 financiador declarado.
Publicación
- Publicado
- 2026-02-14 · Eur J Clin Nutr · vol. 80 · número 3 · págs. 293–298
- Editorial
- Springer Nature
- Citado
- 0 citas · más que el 8% de estudios similares · 0.0× el promedio de su campo
- Referencias
- 45 trabajos
- Acceso
- Acceso abierto (copia en repositorio) · OTHER-OA
- Áreas de investigación
- Nuts composition and effects · Nutritional Studies and Diet · Dementia and Cognitive Impairment Research
- Palabras clave
- almond consumption, cognitive performance, cerebral blood flow, prediabetes, overweight and obesity, psychomotor speed, executive function, memory, cognitive decline, dietary intervention
- MeSH
- brain, humans, prediabetic state, obesity, magnetic resonance imaging, cross-over studies, single-blind method, cognition, neuropsychological tests, cerebrovascular circulation, aged, middle aged, female, male, overweight, prunus dulcis
5 autores
- Micah S. Adams🇳🇱Maastricht University Medical Centre; Maastricht University
- Ronald P. Mensink🇳🇱Maastricht University Medical Centre; Maastricht University
- Jogchum Plat🇳🇱 · autor de correspondenciaMaastricht University Medical Centre; Maastricht University
- Elske Gravesteijn🇳🇱Maastricht University Medical Centre; Maastricht University
- Peter J. Joris🇳🇱Maastricht University Medical Centre; Maastricht University
Resumen
El texto original del estudio, en el idioma en que se publicó.
Background
Previous almond intervention studies involving relatively healthy populations did not demonstrate improvements in cognitive performance. However, a long-term study with participants at risk of cognitive decline, such as those with prediabetes, may be necessary. Potential changes in cognitive performance could be related to changes in brain vascular function.
Methods
A randomized, single-blinded, controlled crossover trial including 43 overweight/obese men and women with prediabetes. Participants were assigned to a 5-month almond (50 g/day) intervention and a 5-month control period, separated by a 2-month washout. Cognitive performance (psychomotor speed, executive function and memory) was assessed using the Cambridge Neuropsychological Test Automated Battery (CANTAB) at the beginning and at the end of each period. Cerebral blood flow (CBF), a marker of brain vascular function, was measured using the non-invasive magnetic resonance imaging (MRI) perfusion method, pseudo-continuous Arterial Spin Labeling (pCASL) at the end of each study period. Data were analyzed using linear mixed models.
Results
Participants had a median age (interquartile range [IQR]) of 66 years (IQR: 59-69 years), and their median BMI was 28.3 kg/m2 (IQR: 26.7-33.1 kg/m2). Thirty-four prediabetic adults (22 men and 12 women) completed the study. No significant intervention effects were observed on any cognitive performance outcomes (n = 33). Compared to the control period, long-term almond consumption also had no significant impact on whole-brain or regional CBF (n = 26).
Conclusion
In line with earlier observations in relatively healthy populations, long-term almond consumption (50 g/day) did not enhance cognitive performance in overweight/obese individuals with prediabetes. Moreover, brain vascular function was unaffected.
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