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High Fruit And Vegetable Intake Linked To Antioxidant Status And Cognitive Performance In Healthy Subjects

Date:
September 10, 2009
Source:
IOS Press BV
Summary:
Researchers in Germany investigated the relationship between fruit and vegetable intake, plasma antioxidant micronutrient status and cognitive performance in healthy subjects aged 45 to 102 years. Their results indicated higher cognitive performance in individuals with high daily intake of fruits and vegetables.

Researchers at the Institute of Biochemistry and Molecular Biology I of the Heinrich-Heine University, Dόsseldorf, Germany, investigated the relationship between fruit and vegetable intake, plasma antioxidant micronutrient status and cognitive performance in healthy subjects aged 45 to 102 years. Their results, published in the August issue of the Journal of Alzheimer’s Disease, indicated higher cognitive performance in individuals with high daily intake of fruits and vegetables.

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Subjects with a high daily intake (about 400 g) of fruits and vegetables had higher antioxidant levels, lower indicators of free radical-induced damage against lipids as well as better cognitive performance compared to healthy subjects of any age consuming low amounts (< 100 g/day) of fruits and vegetables. Modification of nutritional habits aimed at increasing intake of fruits and vegetables, therefore, should be encouraged to lower the prevalence of cognitive impairment.

The work was performed in collaboration with the Department of Pharmacology at Temple University in Philadelphia, Pennsylvania, the Department of Geriatrics at Perugia University, Italy, and the Department of Neurology of the St. Elisabeth Hospital in Cologne, Germany.

Dr. M. Cristina Polidori, currently at the Department of Geriatrics, Marienhospital Herne, Ruhr-University of Bochum, Germany, explains: “It is known that there is a strong association between fruit and vegetable intake and the natural antioxidant defenses of the body against free radicals. It is also known that bad nutritional habits increase the risk of developing cognitive impairment with and without dementia. With this work we show a multiple link between fruit and vegetable intake, antioxidant defenses and cognitive performance, in the absence of disease and independent of age. Among other lifestyle habits, it is recommended to improve nutrition in general and fruit and vegetable intake in particular at any age, beginning as early as possible. This may increase our chances to remain free of dementia in advanced age.”

These findings are independent of age, gender, body mass index, level of education, lipid profile and albumin levels, all factors able to influence cognitive and antioxidant status. The relevance of the findings is also strengthened by the large sample that included 193 healthy subjects.

Further studies are planned that will include larger subject cohorts, patients with Alzheimer’s disease at different stages and patients with mild cognitive impairment without dementia.


Story Source:

The above story is based on materials provided by IOS Press BV. Note: Materials may be edited for content and length.


Journal Reference:

  1. Polidori MC, Pratico D, Mangialasche F, Mariani E, Aust O, Anlasik T, Mang N, Pientka L, Stahl W, Sies H, Nelles G. High fruit and vegetable intake is positively correlated with antioxidant status and cognitive performance in healthy subjects. J Alzheimers Dis, 17:4 (August 2009)

Cite This Page:

IOS Press BV. "High Fruit And Vegetable Intake Linked To Antioxidant Status And Cognitive Performance In Healthy Subjects." ScienceDaily. ScienceDaily, 10 September 2009. <www.sciencedaily.com/releases/2009/09/090909064910.htm>.
IOS Press BV. (2009, September 10). High Fruit And Vegetable Intake Linked To Antioxidant Status And Cognitive Performance In Healthy Subjects. ScienceDaily. Retrieved October 31, 2014 from www.sciencedaily.com/releases/2009/09/090909064910.htm
IOS Press BV. "High Fruit And Vegetable Intake Linked To Antioxidant Status And Cognitive Performance In Healthy Subjects." ScienceDaily. www.sciencedaily.com/releases/2009/09/090909064910.htm (accessed October 31, 2014).

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