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Acute and chronic effects of mixed nuts on energy metabolism in women at cardiometabolic risk: a randomized clinical trial.

Dandara B Bonifácio·Alessandra da Silva·Yuliana M F Estrada·Ana Paula S Caldas·Helen H M Hermsdorff·Josefina Bressan
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Abstract

BACKGROUND AND AIMS: The effect of consuming a mix of Brazilian nuts on energy metabolism has not been explored. Thus, the present study aimed to evaluate the effects of acute and chronic consumption of mixed nuts on markers of energy metabolism in women with overweight/obesity. METHODS AND RESULTS: This is a randomized, controlled, and parallel clinical trial with adult women. In an acute study, participants received a beverage containing mixed nuts (30 g of cashew nuts + 15 g of Brazil nuts) or a control beverage, and energy metabolism markers were assessed for up to 3 h postprandially. For the chronic study, participants received 45 g of a mix of nuts/day and a -500kcal energy-restricted diet (MNG) or only a -500kcal energy-restricted diet free of nuts (CTG) for 8 weeks, and energy metabolism was assessed before and after the intervention period. In the postprandial period, fat oxidation was higher in the MNG than in the CTG (piAUC: 47.53 ± 5.78 mg/min vs. 27.93 ± 6.98 mg/min; p = 0.048). After 8 weeks of the intervention, fasting fat oxidation increased in the MNG (+16.0 ± 7.0 mg/min) and decreased in the CTG (-5.0 ± 6.0 mg/min), with no significant difference between groups. Other acute and chronic markers also showed no significant changes between groups. CONCLUSION: The acute consumption of mixed nuts increased postprandial fat oxidation, whereas chronic intake within an energy-restricted diet did not affect energy metabolism markers in women at cardiometabolic risk. REGISTRATION NUMBER FOR BRAZILIAN REGISTRY OF CLINICAL TRIALS: RBR-3ntxrm.

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HumansFemaleEnergy MetabolismAdultNutsTime FactorsObesityMiddle AgedTreatment OutcomeAnacardiumBertholletiaCardiometabolic Risk FactorsBrazilCaloric RestrictionNutritive ValueRisk AssessmentBiomarkersOxidation-ReductionDiet, HealthyBrazil nutCashew nutsFat oxidationRespiratory quotientJournal ArticleRandomized Controlled Trial

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Dandara B Bonifácio, Alessandra da Silva, Yuliana M F Estrada, Ana Paula S Caldas, Helen H M Hermsdorff, Josefina Bressan. 2026-05-21. Acute and chronic effects of mixed nuts on energy metabolism in women at cardiometabolic risk: a randomized clinical trial.. https://doi.org/10.1016/j.numecd.2026.104801

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Journal Article; Randomized Controlled Trial resourceAdult subjectBiomarkers subjectBrazil subjectCaloric Restriction subjectCardiometabolic Risk Factors subjectEnergy Metabolism subjectFemale subjectHumans subjectJournal Article subjectMiddle Aged subjectObesity subjectOxidation-Reduction subjectRandomized controlled trials study

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