Saturday, May 22, 2010


Hi,  I'm posting an article by Andre Leu, because it is very good, and well worth a read.

I'm constantly saying how organic food is superior to conventional, and worth the extra cost, "pay the grocer now, or the doctor later," but it is difficult to convince everyone of that.  Leu's article is great, because he backs up his premise with published studies and facts.  He is much more succinct than I, and his article is very complete, he references many aspects of organic food, not just the lesser pesticides.
He mentions nitrates, pathogens, and salicylic acid, keep and eye out for those, and how organic produce creates more antioxidants then conventional, and why.

Leu is from Australia, and I like that many of the studies of different countries are referred, and not just those here in the US.  Here is a link to the page of the references he used for this article, they are on the bottom of the page after the article.

Don't forget when you purchase organic produce, you are not only are helping yourself, and your family, but you are keeping all the synthetic chemicals and pesticides out of our environment, so you are benefiting us all.  Hopefully, if we all demand affordable organic food, the price will come down to a more appropriate level.

I hope my readers will spend the few minutes it will take to read his article, I think you will be pleased that you did.

The Benefits of Organic Food

By Andre Leu, Chair, Organic Federation of Australia


Many people purchase organic food because they believe it is healthier than conventionally grown food. The organic industry is constantly told that there is no evidence to support these claims. This article looks at published information that shows that organic food is substantially healthier than conventional food.
Research published in 2001 showed that the current fruit and vegetables in the USA have about half the vitamin content of their counterparts in 1963. This study was based on comparing published US Department of Agriculture (USDA) figures. 1
A scientific study published in the Journal of Applied Nutrition in 1993 clearly showed that organic food is more nutritious than conventional food. Organically and conventionally grown apples, potatoes, pears, wheat, and sweet corn were purchased in the western suburbs of Chicago, over two years, and analysed for mineral content. The organically grown food averaged 63% higher in calcium, 73% higher in iron, 118% higher in magnesium, 178% higher in molybdenum, 91% higher in phosphorus, 125% higher in potassium and 60% higher in zinc. The organic food averaged 29% lower in mercury than the conventionally raised food. 2
A peer reviewed scientific article published in the February 2003 edition of the Journal of Agricultural and Food Chemistry stated that organically grown corn, strawberries and marionberries have significantly higher levels of cancer fighting antioxidants than conventionally grown foods. Some of these compounds, such as Flavonoids, are phenolic compounds that have potent antioxidant activities. Many are produced in plants in response to environmental stresses, such as insects or competing plants. They are protective compounds that act as a plant's natural defense and also have protective properties in human and animal health.
The research suggested that pesticides and herbicides disrupt the production of these protective compounds.  Good soil nutrition appears to increase the levels of these natural compounds that have anti cancer, immune boosting and anti aging properties. 3
Another peer reviewed scientific study, published in European Journal of Nutrition, showed a higher level of a protective phytonutrient in organic food. Dr John Paterson and a team from the University of Strathclyde, UK, found that organic vegetable soups contain almost six times as much salicylic acid as non-organic vegetable soups. Salicylic acid is produced naturally in plants as a protective compound against stress and disease. It is responsible for the anti-inflammatory action of aspirin, and helps combat hardening of the arteries and bowel cancer.
The average level of salicylic acid in 11 brands of organic vegetable soup, on sale in Britain, was 117 nanograms per gram, compared with 20 ng/g in 24 types of non-organic soups. The highest concentration of salicylic acid, 1040 ng/g, was found in an organic carrot and coriander soup, while it was not detectable in four conventional soup brands.4
Two comprehensive studies have been published that compared the differences between organic and conventional foods. Both studies analyzed around 40 previously published studies, each independently of the other. One study was conducted in the UK by Shane Heaton for the Soil Society and the other in the USA by Virginia Worthington as a peer reviewed university graduate thesis. Both studies came up with similar conclusions showing that there is overwhelming evidence that organic food is more nutritious than conventional food. One of the authors stated: ‘On average our research found higher vitamin C, higher mineral levels and higher phytonutrients - plant compounds which can be effective against cancer. There's also less water in organic vegetables so pound for pound you get more carrot for your carrot.’ 5, 6
It is no coincidence that the consumer demand for food supplements has grown, as the amount of minerals and vitamins decline, in conventionally farmed food. Many people cannot get the necessary quantity and quality of nutrition from food grown from synthetic chemicals.
In the recent past there have been a number of media stories claiming that, because organic foods are grown with manure, they contain higher levels of dangerous pathogens. On investigation, all of these stories were proved to be false and most of the media presenters apologised publicly for promoting inaccurate and misleading stories.
It is a requirement of organic certification systems that animal manures are composted, or that two non-food rotations are grown on a manured site before it can be used for small crops. A United Nations Food and Agriculture Organisation (FAO) report concluded that the superior management practices of organic agriculture reduce E. coli and mycotoxin infections in food.
‘It can be concluded that organic farming potentially reduces the risk of E. coli infection - Two studies reported by Woess found that aflatoxin M1 levels in organic milk were lower than in conventional milk ... As organically raised livestock are fed greater proportions of hay, grass and silage, there is reduced opportunity for mycotoxin contaminated feed to lead to mycotoxin contaminated milk’.

The report further stated. ‘Animal feeding practices followed in organic livestock production, also lead to a reduction in contamination of food products of animal origin.’ 7
FAO (2000)
Food Additives
The use of antibiotics, anti-microbials, hormones and other growth promotants are prohibited in organic production. Where animals are treated with veterinary chemicals, they are not allowed to be sold as organic. Similarly the use of synthetic chemicals as preservatives, colourings, antioxidants etc are prohibited in the processing of organic foods. There is an increasing body of concern about these synthetic compounds in the diets of humans and animals used for human food. 5
Chemical Residues
Many studies show that most conventionally farmed foods have pesticide and other chemical residues. Repeated tests show that many of these foods can carry a cocktail of synthetic poisons.8,9,10,11
A growing body of science is showing that repeated exposures, to cocktails of small amounts of synthetic chemicals, have a range of adverse health effects. A recently published study shows that as little a one tenth of a part per billion of one commonly used herbicide can damage reproductive systems.12
Many scientists believe these exposures, of minute quantities of agricultural chemicals, are very significant for children. The United States Environmental Protection Agency is now in the process of reducing current chemical residue levels in food to one tenth of the present levels to lessen childhood exposure.9,11,13 
A study by the U.S. Centers for Disease Control found a cocktail of many toxic chemicals in the blood and urine of most Americans that they tested. Other studies show that most living organisms carry a cocktail of synthetic man made chemicals. Only now are scientists beginning to understand the detrimental effects of minute amounts of these artificial toxins.9,10,14
Peer reviewed published research has demonstrated that many of these types of chemicals are known to disrupt the hormone, nervous and immune systems. The escalating increase of certain types of cancers such as lymphoma, leukemia, breast, uterine and prostate cancers are linked to agricultural and other synthetic chemicals. Similarly, a good body of scientific research also links these chemicals to the dramatic increases in autoimmune diseases such as asthma and chronic fatigue syndrome. Cancers such as Non Hodgkin’s lymphoma have gone from being one of the rarest cancers to one of the fastest growing cancers amongst people exposed to agricultural chemicals. 9,10,15,16,17,18,19,20,21,22,23
A detailed scientific analysis of organic fruits and vegetables, published in the peer-reviewed journal Food Additives and Contaminants, showed that organic foods have significantly less pesticide residues than conventionally grown foods. 8
Most importantly scientific studies are beginning to show that that eating organic food results in lower levels of these pervasive chemicals in humans.
A study published in the peer reviewed journal, Environmental Health Perspectives, found that children who eat organic foods have lower levels of one class of agricultural pesticides in their bodies. The University of Washington researchers who conducted the study concluded ‘The dose estimates suggest that consumption of organic fruits, vegetables, and juice can reduce children's exposure levels from above to below the U.S. Environmental Protection Agency's current guidelines, thereby shifting exposures from a range of uncertain risk to a range of negligible risk. Consumption of organic produce appears to provide a relatively simple way for parents to reduce their children's exposure to OP pesticides.’ 11
The use of soluble chemical fertilisers has resulted in high nitrate concentrations in many conventionally farmed foods, especially in fruits and vegetables. Leafy vegetables can have the highest concentrations. The leaching of these fertilisers has also resulted in high nitrate levels in some drinking water systems around the world.

High nitrate content in food and drinking water can be converted to nitrosamines that are carcinogens. Nitrates can impair the ability of the blood to carry oxygen, and may pose a risk of methemoglobinemia. 7

This is a condition that can occur in infants and adults with a diminished capability to secrete gastric acid. A rise in the pH in their digestive system allows bacteria to proliferate, increasing the transformation of nitrate to nitrite. When this nitrite is absorbed into the bloodstream, it oxidizes iron in the hemoglobin of red blood cells to form methemoglobin, which lacks hemoglobin's oxygen-carrying ability. In severe cases this can be one of the causes of Blue Baby syndrome, however in most cases the symptoms would be tiredness, lethargy and a general feeling of being unwell.

The nitrate content of organically grown crops is usually significantly lower than in conventionally grown products. The governments of Germany and France have encouraged conversion to organic farming in certain areas in a bid to improve water quality, particularly in relation to its nitrate content.7

The United Nations FAO states the case very succinctly. ‘It has been demonstrated that organically produced foods have lower levels of pesticide and veterinary drug residues and, in many cases, lower nitrate contents. Animal feeding practices followed in organic livestock production, also lead to a reduction in contamination of food products of animal origin.’ 7
The facts show that organic food has significant health benefits because it has negligible chemical residues, pathogens and higher nutritional values when compared to conventionally farmed food.

Andre Leu is the president of the Organic Producers Association of Queensland and vice chair of the Organic Federation of Australia. He can be reached at P.O. Box 800, Mossman, Queensland 4873, Australia.

Andre Leu

I hope you enjoyed the article.

Good Health and Wealth,


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