Archive for May, 2010

May 12th, 2010

Malnutrition at 3 Years and Externalizing Behavior Problems at Ages 8, 11 and 17 Years

Am J Psychiatry 161:11, November 2004 2005


Malnutrition at Age 3 Years and Externalizing Behavior

Problems at Ages 8, 11, and 17 Years

Jianghong Liu, Ph.D.

Adrian Raine, D.Phil.

Peter H. Venables, Ph.D., D.Sc.

Sarnoff A. Mednick, Ph.D.,

Objective: Poor nutrition is thought to predispose to externalizing behavior problems, but to date there appear to have been no prospective longitudinal studies testing this hypothesis. This study assessed whether 1) poor nutrition at age 3 years predisposes to antisocial behavior at ages 8, 11, and 17 years, 2) such relationships are independent of psychosocial adversity, and 3) IQ mediates the relationship between nutrition and externalizing behavior problems.

Method: The participants were drawn from a birth cohort (N=1,795) in whom signs of malnutrition were assessed at age 3 years, cognitive measures were assessed at ages 3 and 11 years, and antisocial, aggressive, and hyperactive behavior was assessed at ages 8, 11, and 17 years.

Results: In relation to comparison subjects (N=1,206), the children with malnutrition signs at age 3 years (N=353) were more aggressive or hyperactive at age 8 years, had more externalizing problems at age 11, and had greater conduct disorder and excessive motor activity at age 17. The results were independent of psychosocial adversity and were not moderated by gender. There was a dose-response relationship between degree of malnutrition and degree of externalizing behavior at ages 8 and 17. Low IQ mediated the link between malnutrition and externalizing behavior at ages 8 and 11.

Conclusions: These results indicate that malnutrition predisposes to neurocognitive deficits, which in turn predispose to persistent externalizing behavior problems throughout childhood and adolescence.  The findings (more…)

May 12th, 2010

Study Reveals Pesticides from Foods in Children’s Bodies

Study Reveals Pesticides from Foods in Children’s Bodies

Harmful pesticides found in everyday food products
By Andrew Schneider
Seattlepi, 1/30/2008 

Read full study here

Government promises to rid the nation’s food supply of brain-damaging pesticides aren’t doing the job, according to the results of a yearlong study that carefully monitored the diets of a group of local children.

The peer-reviewed study found that the urine and saliva of children eating a variety of conventional foods from area groceries contained biological markers of organophosphates, the family of pesticides spawned by the creation of nerve gas agents in World War II.

When the same children ate organic fruits, vegetables and juices, signs of pesticides were not found.

“The transformation is extremely rapid,” said Chensheng Lu, the principal author of the study published online in the current issue of Environmental Health Perspectives.

“Once you switch from conventional food to organic, the pesticides (malathion and chlorpyrifos) that we can measure in the urine disappears. The level returns immediately when you go back to the conventional diets,” said Lu, a professor at Emory University’s School of Public Health and a leading authority on pesticides and children.

Within eight to 36 hours of the children switching to organic food, the pesticides were no longer detected in the testing.

May 11th, 2010

Just In! Dr. Dan on KUNR 88.7 Radio

Dan Erwine explores the role of micronutrients and dietary supplements in sustaining mental health. There will be a conference later this month in Truckee. On the program: Dr. Dan Smith, a chiropractor and nutritional counselor, and Dr. Kaplan, research psycologist at the University of Calgary.