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:
*Name:
*Comment:
*Email:


(Date:4/11/2017)... Research and Markets has announced the addition ... their offering. ... tracking market to grow at a CAGR of 30.37% during the ... 2017-2021, has been prepared based on an in-depth market analysis with ... its growth prospects over the coming years. The report also includes ...
(Date:4/11/2017)... -- NXT-ID, Inc. (NASDAQ:   NXTD ) ("NXT-ID" ... of independent Directors Mr. Robin D. Richards and ... furthering the company,s corporate governance and expertise. ... Gino Pereira , Chief Executive Officer ... guidance and benefiting from their considerable expertise as we move ...
(Date:4/5/2017)... , April 5, 2017  The Allen Institute ... Allen Cell Explorer: a one-of-a-kind portal and dynamic digital ... 3D imaging data, the first application of deep learning ... human stem cell lines and a growing suite of ... platform for these and future publicly available resources created ...
Breaking Biology News(10 mins):
(Date:4/21/2017)... ... April 21, 2017 , ... Having worked on the design ... is pleased to introduce it to top lab design architects from around the country ... and VP of Industrial Design and Engineering Greg Casey will be at the show, ...
(Date:4/21/2017)... ... 21, 2017 , ... The AMA is happy to announce that $48,000 in ... nation. The scholarships are created through funds donated by model aviation organizations and individuals, ... by the AMA Scholarship Committee, which is made up of model aviation pilots and ...
(Date:4/20/2017)... ... April 20, 2017 , ... As part ... will explore challenging patient cases when screening for direct oral anticoagulant. When patients ... a need for bridging parental anticoagulation especially for those at high risk of ...
(Date:4/20/2017)... SANTA BARBARA, CALIFORNIA (PRWEB) , ... April 20, 2017 , ... ... process optimization firm for the life sciences and healthcare industries, is pleased to announce ... of the new established USDM subsidiary “USDM Europe GmbH” based in Germany. , ...
Breaking Biology Technology:
Cached News: