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Scientific Research

May
2013

Cocoa polyphenols enhance positive mood states but not cognitive performance: a randomized, placebo-controlled trial.

Journal of Psychopharmacology

Pase MP1, Scholey AB, Pipingas A, Kras M, Nolidin K, Gibbs A, Wesnes K, Stough C

This study aimed to examine the acute and sub-chronic effects of cocoa polyphenols on cognition and mood. In a randomized, double-blind study, healthy middle-aged participants received a dark chocolate drink mix standardized to contain 500 mg, 250 mg or 0 mg of polyphenols (placebo) in a parallel-groups design. Participants consumed their assigned treatment once daily… Read more »

Sep
2012

Benefits in cognitive function, blood pressure, and insulin resistance through cocoa flavanol consumption in elderly subjects with mild cognitive impairment: the Cocoa, Cognition, and Aging (CoCoA) study.

Hypertension

Desideri G1, Kwik-Uribe C, Grassi D, Necozione S, Ghiadoni L, Mastroiacovo D, Raffaele A, Ferri L, Bocale R, Lechiara MC, Marini C, Ferri C

Flavanol consumption is favorably associated with cognitive function. We tested the hypothesis that dietary flavanols might improve cognitive function in subjects with mild cognitive impairment. We conducted a double-blind, parallel arm study in 90 elderly individuals with mild cognitive impairment randomized to consume once daily for 8 weeks a drink containing ≈990 mg (high flavanols),… Read more »

Sep
2012

Benefits in cognitive function, blood pressure, and insulin resistance through cocoa flavanol consumption in elderly subjects with mild cognitive impairment: the Cocoa, Cognition, and Aging (CoCoA) study.

Hypertension

Desideri G1, Kwik-Uribe C, Grassi D, Necozione S, Ghiadoni L, Mastroiacovo D, Raffaele A, Ferri L, Bocale R, Lechiara MC, Marini C, Ferri C

Flavanol consumption is favorably associated with cognitive function. We tested the hypothesis that dietary flavanols might improve cognitive function in subjects with mild cognitive impairment. We conducted a double-blind, parallel arm study in 90 elderly individuals with mild cognitive impairment randomized to consume once daily for 8 weeks a drink containing ≈990 mg (high flavanols),… Read more »

Feb
2012

Steady state visually evoked potential (SSVEP) topography changes associated with cocoa flavanol consumption.

Physiology & Behavior

Camfield DA1, Scholey A, Pipingas A, Silberstein R, Kras M, Nolidin K, Wesnes K, Pase M, Stough C

In a randomized, double-blind placebo controlled trial, 63 middle-aged volunteers aged between 40 and 65 years were administered a daily chocolate drink containing 250 mg or 500 mg cocoa flavanols versus a low cocoa flavanol (placebo) drink over a 30-day period. Participants were tested at baseline as well as at the end of the treatment… Read more »

Jun
2011

Consumption of cocoa flavanols results in an acute improvement in visual and cognitive functions.

Physiology & Behavior

Field DT1, Williams CM, Butler LT

Cocoa flavanols (CF) influence physiological processes in ways that suggest their consumption may improve aspects of neural function, and previous studies have found positive influences of CF on cognitive performance. In this preliminary study we investigated whether visual, as well as cognitive, function is influenced by an acute dose of CF in young adults. We… Read more »

Nov
2010

High cocoa polyphenol rich chocolate may reduce the burden of the symptoms in chronic fatigue syndrome.

Nutrition Journal

Sathyapalan T1, Beckett S, Rigby AS, Mellor DD, Atkin SL

BACKGROUND: Chocolate is rich in flavonoids that have been shown to be of benefit in disparate conditions including cardiovascular disease and cancer. The effect of polyphenol rich chocolate in subjects with chronic fatigue syndrome (CFS) has not been studied previously. METHODS: We conducted a double blinded, randomised, clinical pilot crossover study comparing high cocoa liquor/polyphenol… Read more »

Oct
2010

Consumption of cocoa flavanols results in acute improvements in mood and cognitive performance during sustained mental effort.

Journal of Psychopharmacology

Scholey AB1, French SJ, Morris PJ, Kennedy DO, Milne AL, Haskell CF

Cocoa flavanols (CF) positively influence physiological processes in ways that suggest their consumption may improve aspects of cognitive function. This study investigated the acute cognitive and subjective effects of CF consumption during sustained mental demand. In this randomized, controlled, double-blinded, balanced, three period crossover trial 30 healthy adults consumed drinks containing 520 mg, 994 mg… Read more »

Sep
2010

Dose-related effects of flavanol-rich cocoa on blood pressure.

Journal of Human Hypertension

Davison K1, Berry NM, Misan G, Coates AM, Buckley JD, Howe PR

Consumption of flavanol-containing cocoa products has been shown to lower blood pressure (BP), but the minimum dose required to reduce BP is not known. This study aimed to examine the effect of three different doses of cocoa flavanols (CF) on 24-h mean arterial BP. Twenty four hour ambulatory BP (24-ABP) monitoring was performed in 32… Read more »

May
2010

Impact of cocoa flavanol consumption on blood pressure responsiveness to exercise.

British Journal of Nutrition

Berry NM1, Davison K, Coates AM, Buckley JD, Howe PR

Impaired endothelial vasodilatation may contribute to the exaggerated blood pressure (BP) responses to exercise in individuals who are overweight/obese. The present study investigated whether consumption of cocoa flavanols, which improve endothelium-dependent flow-mediated dilatation (FMD), can modify BP responsiveness to exercise. Twenty-one volunteers (eight females and thirteen males, 54.9 (se 2.2) years, BMI 31.6 (se 0.8)… Read more »

May
2010

Impact of cocoa flavanol consumption on blood pressure responsiveness to exercise.

British Journal of Nutrition

Berry NM1, Davison K, Coates AM, Buckley JD, Howe PR.

Impaired endothelial vasodilatation may contribute to the exaggerated blood pressure (BP) responses to exercise in individuals who are overweight/obese. The present study investigated whether consumption of cocoa flavanols, which improve endothelium-dependent flow-mediated dilatation (FMD), can modify BP responsiveness to exercise. Twenty-one volunteers (eight females and thirteen males, 54.9 (se 2.2) years, BMI 31.6 (se 0.8)… Read more »

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