HOME >> BIOLOGY >> NEWS
Zinc supplementation improved mental performance of 7th-grade boys and girls

eas to provide a measure of psychosocial function. Blood samples measured zinc status before and after the treatment.

Compared to the students who received no additional zinc, students who consumed an additional 20 mg zinc each day decreased reaction time on a visual memory task by 12 percent versus six percent; increased correct answers on a word recognition task by 9 percent versus three percent; and increased scores on a task requiring sustained attention and vigilance by 6 percent versus one percent. Those who received only 10 mg a day, the current Recommended Dietary Allowances (RDA) for this age group, did not significantly improve performance, however.

Supplementation at either the 10 mg or 20 mg did not appear to improve motor and social skills, although girls receiving the placebo experienced a 10 percent increase in conduct problems during the study while the behavior of girls receiving any level of zinc supplementation remained unchanged. If further studies confirm that the mental function, and in particular memory, of adolescents benefit from increasing zinc intakes, says Dr. Penland, then this and other similar studies would provide information that could be used when revising dietary guidelines for zinc in this age group.

Such guidelines ultimately affect school breakfast and lunch menus, the food guidance system, nutrition labels on food packages, and other uses. Zinc is a common essential mineral found in foods, particularly red meats, fish and grains. Previous studies have shown that zinc is needed for growth and immune function and may be important for eye-hand coordination and reasoning in very young children and in memory, muscle strength and endurance in adults.

Dr. Penland's co-investigators are Dr. Henry C. Lukaski, also from the Grand Forks Human Nutrition Research Center (GFHNRC), and Dr. Jacqueline S. Gray, previously with GFHNRC and now with the Center for Rural Health at the University of North Dakota.
'"/>

Contact: Sarah Goodwin
ebpress@bellsouth.net
770-270-0989
Federation of American Societies for Experimental Biology
4-Apr-2005


Page: 1 2 3

Related biology news :

1. Zinc supplementation found to reduce mortality in older children
2. Antioxidant supplementation not associated with decreased risk of prostate cancer
3. Einstein researchers prototype vaccine could provide improved protection against tuberculosis
4. Gene expression pattern could lead to improved treatment of pediatric septic shock
5. Identification of genetic risk factor for coeliac disease promises improved treatment
6. Canadian paper innovation holds promise for improved global health safety
7. Enhanced MR-guided focused ultrasound guidelines demonstrate improved efficacy and durability
8. Toward improved forms of a time-tested cholesterol-fighter
9. Report calls for improved monoclonal antibodies against solid tumors
10. UF scientists test improved gene therapy method for hereditary heart conditions
11. Novel method reveals how menthol discovery could point towards new or improved pain therapies

Post Your Comments:
(Date:4/17/2014)... NY, April 17, 2014The development of stem cell therapies ... ability to characterize stem cell populations based on cell ... discovered a new marker that is highly expressed in ... cord blood, which they describe in an article in ... Mary Ann Liebert, Inc., publishers. The article is available ...
(Date:4/17/2014)... Andr Gauthier and Professor Luca Razzari of the ... awarded large grants from the John R. Evans ... (CFI) for the acquisition of state-of-the-art biotech and ... matching grants from the Ministre de l,Enseignement suprieur, ... la Technologie (MESRST). These new laboratories will help ...
(Date:4/17/2014)... is available in German . ... recognise objects; they also provide us with a continuous stream ... around, fall or sit still in a car the ... on our retinas. Seemingly without effort, our brain calculates self-motion ... stable position and a steady gaze during our own movements. ...
Breaking Biology News(10 mins):New state-of-the-art biotech and nanotech equipment for INRS 2How vision makes sure that little fish do not get carried away 2How vision makes sure that little fish do not get carried away 3How vision makes sure that little fish do not get carried away 4
(Date:1/15/2014)... , January 15, 2014 A study ... races on the Formula 1 track could help to tackle ... Applied Technologies (MAT), Stowhealth (a GP surgery based in Stowmarket) ... healthcare provider Simplyhealth. Telemetry technology, which is inspired ...
(Date:1/15/2014)... Two champions of science, technology, engineering, ... an annual competition for middle and high school students ... STEM study. The competition presents students with real-world problems ... Aptitude, Mathematics, and Sciences is a program administered ...
(Date:1/15/2014)... DTS Language Services, Inc . is pleased to announce ... organizations who need document translations. Clients will now have ... in advance with a selection of nearly 50 life science ... critical factor in clinical and scientific fields, and decrease the ...
(Date:1/15/2014)... 15, 2014 Freeslate, Inc ., ... announced that Lupin Limited, one of India’s top five ... Protégé PharmD System for high throughput solid form ... focused on a wide range of quality, affordable generic ...
Breaking Biology Technology:Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 2Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 3Formula 1 Technology Tackles Obesity in Unique Healthcare Partnership 4Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 2Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 3Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 4Technology Student Association Partners with Leaders in STEM Education Advocacy for Annual Competition 5DTS Improves Efficiency for Life Science Document Translations 2Lupin Selects Freeslate’s CM Protégé PharmD System to Accelerate Polymorph Screening for Drug Development 2Lupin Selects Freeslate’s CM Protégé PharmD System to Accelerate Polymorph Screening for Drug Development 3
Cached News: