Antioxidants, Minerals & Vitamins Substantially Higher In Organic Food - Study Finds
A study published in the British Journal of Nutrition in 2014 carried out a meta-analysis based on 343 peer-reviewed publications that indicate “statistically significant and meaningful differences in composition between organic and non-organic crops/crop based foods.”
The study found that the concentrations of “a range of antioxidants such as polyphenolics were found to be substantially higher in organic crops/crop based foods, with those of crop-based foods, with those of phenolic acids, ﬂavanones, stilbenes, ﬂavones, ﬂavonols and anthocyanins being an estimated 19 (95 % CI 5, 33) %, 69 (95 % CI 13, 125) %, 28 (95 % CI 12, 44) %, 26 (95 % CI 3, 48) %, 50 (95 % CI 28, 72) % and 51 (95 % CI 17, 86) % higher, respectively.”
In layman’s terms, the study found that Phenolic acids are 19% higher in organic foods, flavanones are 69% higher in organic foods (linked to reduced risk of several age-related chronic diseases), stilbenes are 28% higher in organic foods, flavones are 26% higher in organic foods, flavonol is 50% higher in organic foods and anthocyanins are 51% higher in organic foods.
The higher concentration of all of these compounds in organic foods brings with it substantial health benefits. The authors note that many of these compounds have been linked to a reduced risk of a variety of diseases like cancers, CVD, and neurodegenerative disorders to name a few.
Apart from nutritional content, the study also measured for concentrations of the toxic metal Cadmium (Cd), finding that in conventional foods, “significantly higher concentrations” were found. Conventional foods appear to have nearly 50 percent more of this heavy metal than organic foods. Furthermore, significant differences were also detected for other minerals and vitamins.
That being said, there are multiple studies out there that claim otherwise, that there is no significant nutritional difference, and that there are too many confounding factors when it comes to health. For example, healthier people who like to live a healthy lifestyle are more prone to buy organic, therefore it may not be the food that is contributing to their better health but their lifestyle habits instead.
The study also found that that organic and conventional vegetables offer similar levels of many nutrients, including minerals, vitamin C and vitamin E. Conventional crops are higher in protein.
Jeffrey Blumberg, a professor of nutrition at Tufts University, says attempts to draw conclusions from collections of hundreds of different studies, each one comparing organic and conventional food, are beset by a host of methodological problems. For one thing, there's no single "organic" or "conventional" production system.
Some organic crops get lots of organic fertilizer; some don't. Some are protected with lots of natural pesticides; some are not. Conventional practices vary widely, too. So it's difficult to know, in the end, what you really are comparing. And food that's compared in these studies may not be the same as the food you're buying in the store.
When it comes to pesticide residues on non-organic foods, the authors found that the volume of pesticide residues was four times higher in conventional crops.
Keep in mind, the study above comes from 2014. One of the latest studies was recently published in the journal Environmental Research. It was entitled, “Organic diet intervention significantly reduces urinary pesticide levels in U.S. children and adults.”
This study highlighted that diet is the primary source of pesticide exposure in both children and adults. It found that an organic diet significantly reduced neonicotinoid, OP pyrethroid, 2,4-D exposure, with the greatest reduction observed in malathion, clothianidin, and chlorpyrifos.
The researchers noted that all of us are exposed “to a cocktail of toxic synthetic pesticides linked to a range of health problems from our daily diets.” They explain how “certified organic food is produced without these pesticides,” and ask the question, “Can eating organic really reduce levels of pesticides in our bodies?” They tested four American families that don’t typically eat organic food to find out. All pesticides detected in the body dropped an average of 60.5% after just six days on an organic diet.
First, we tested the levels of pesticides in their bodies on a non-organic diet for six days. We found 14 chemicals representing potential exposure to 40 different pesticides in every study participant. These included organophosphates, pyrethroids, neonicotinoids and the phenoxy herbicide 2,4-D. Some of the pesticides we found are linked to increased risk of cancer, infertility, learning disabilities, Parkinson’s, Alzheimer’s and more.
The most significant drops occurred in a class of nerve agent pesticides called organophosphates. This class includes chlorpyrifos, a highly toxic pesticide linked to increased rates of autism, learning disabilities and reduced IQ in children. Organophosphates are so harmful to children’s developing brains that scientists have called for a full ban. (source)
Another study conducted by researchers from RMIT university nearly 5 years ago published in the journal Environmental Research found that eating an organic diet for just one week significantly reduced pesticide exposure in adults by up to 90 percent.
A lot of these agents were initially developed as nerve gases for chemical warfare:
To understand this controversial issue it is helpful to look at the history of pesticide use. Prior to World War II, the pesticides that we use now did not yet exist. Some pesticides currently in use were in fact developed during World War II for use in warfare. The organophosphate insecticides were developed as nerve gases, and the phenoxy herbicides, including 2,4-D (the most commonly used herbicide in Canada), were created to eradicate the Japanese rice crop, and later used as a component of Agent Orange to defoliate large areas in jungle warfare. After World War II, these chemicals began to be used as pesticides in agricultural production, for environmental spraying of neighbourhoods, for mosquito eradication, and for individual home and garden use.
Pesticide Literature Review by the Ontario College of Family Physicians.
Chemical agriculture has since been justified primarily on an economic basis. There is a lot of information out there to support the idea that organic farming is actually far more beneficial in several different ways, and the idea that chemical agriculture is necessary and more economical appears to be completely false. If you'd like to learn more about that, look up Dr. Vandana Shiva, she's proven it.
These agents are also contributing to the destruction of our environment.
She is s a renowned author, environmental activist, and physicist. Shiva founded Navdanya, an international movement started 30 years ago in India to defend seed and food sovereignty and small farmers around the world. In the last 30 years, Navdanya’s research on Biodiversity based Agro-ecological farming has shown how Agroecology can increase nutrition and health, as well as farmers incomes while rejuvenating soil, water and biodiversity and enhancing climate resilience. They have a membership of more than 650,000 farmer families in 22 states of India.
Have we been ‘had?’ Have we been made to believe that chemical and non-conventional agriculture is necessary to simply put large amounts of money into the hands of these agrochemical companies? What about the control that these companies have over food and environmental policy? All of these topics and concerns are certainly a good discussion for another article, as is the topic of price differences between organic foods and non organic foods. I just wanted to stick to health findings with this specific article.
At the end of the day, chemical agriculture has long been destroying health, and is having devastating consequences on our environment. It’s puzzling how it can be at all justified and we have accepted it up to now. Drastic changes are needed by the human race to address this issue. But for now, if you have the means to do so, go organic.