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Nutritional Deficiency



Most conventionally-grown food is less nutritious than the organic equivalent, although there is some controversy about this.  Low levels of vitamins and essential minerals are surprisingly common in British children.  Deficiencies can affect immune system function and contribute to ADHD, anxiety neurosis and other conditions.


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There is an increasing amount of evidence that nutritional deficiencies detrimentally affect children’s concurrent mental functions. It is likely that iron deficiency, and mild to moderate undernutrition, if allowed to persist for long periods may lead to developmental lags which are difficult to reverse.
The long-term
effects of recurrent short-term food deprivation are unknown.



Most children are not receiving enough essential nutrients such as calcium, magnesium, iron, zinc, vitamins, riboflavin and folate. 
Iron deficiency is directly associated with attention deficit disorders, irritability and with poor achievement at school;
zinc deficiency with irritable, tearful, sullen, and possibly hyperactive behaviour;
calcium deficiency with anxiety neurosis; and
magnesium deficiency with fidgeting and anxious restlessness, as well as with learning disabilities. 

Considering the high prevalence of these conditions, the public health implications are enormous. [DONALD T. SIMEON AND SALLY M . GRANTHAM-McGREGOR Nutrition Research Reviews (1990), 3, 1-24 ]

Organic v Conventional Produce
 

Numerous studies have shown that today's 'supermarket' vegetables contain as little as 40% of essential minerals than those grown fifty years ago.

Argument continues about the benefits of organic produce, but research such as the EU-funded 'Quality Low Input Food Project' (QLIF) is hard to dismiss. 

A £12 million, four-year study, the QLIF showed that organic food production resulted in "higher levels of nutritionally desirable compounds (e.g. vitamins/antioxidants and polyunsaturated fatty acids) and lower levels of nutritionally undesirable compounds  such as heavy metals, mycotoxins, pesticide residues and glyco-alkaloids".
 

Links:  www.sustainweb.org;  www.nutrition.org.uk;  www.bhf.org.uk; www.holisticmed.com; http://orgprints.org/view/projects/eu_qlif.html
             
www.organicconsumers.org.