5 Studies That Link Science Behind the Benefits of Organic

Benefits to Public Health

A new study published in the International Journal of Environmental Research and Public Health concluded that eating an organic diet can contribute to human well-being. The research was led by Swedish University of Agricultural Sciences-based Dr. Jan Johansson, who reviewed current research on the effect of organic agriculture and crops on public health.

Finding a clear health advantage of consuming organic, her team states that "both animal studies and in vitro studies clearly indicate the benefits of consumption of organically produced food instead of that conventionally produced."

The increased phenolic compounds and lower pesticide residues found in organic produce could partially account for these benefits, but the study also points out that the significant advantages of organic cannot be explained by these variables alone. Researchers suggest that synergistic effects between various constituents within organic food are likely to be part of the reason it's more beneficial to public health than conventional products.

Reduced Pesticide Exposure

A new study published in the journal Environmental Research found that eating an organic diet for a week can reduce a person's pesticide exposure. The research was led by Dr. Liza Oates, who examined pesticide metabolites in the urine of 13 individuals who consumed a diet of at least 80 percent organic over seven days, and conventional food for seven days.

Dr. Oates’ team found that the total pesticide metabolite levels were reduced by as much as 96 percent by eating organic, with an average reduction of 50 percent. This study shows that eating an organic diet can reduce exposure to chemicals that have been associated with health risks. As stated by Dr. Oates, “Recent studies have raised concerns for the health effects of these chemicals even at relatively low levels.”

It’s nice to see a study showing that choosing organic can make a significant difference in your exposure levels.

Nutritional Benefits

A new study published in the British Journal of Nutrition shows conclusive evidence that organic crops, and the food made from them, are healthier than their conventional counterparts. In this study, researchers conducted a meta-analysis on 342 peer-reviewed publications looking at the health benefits of organic agriculture and found that organic crops have higher antioxidant levels, lower cadmium levels and less pesticide residues than non-organic crops. They found that organic crops had significantly higher levels of antioxidants that have been linked to decreases in chronic disease risks such as cardiovascular disease, neurodegenerative diseases and certain cancers.

The study also found fewer pesticide residues and lower toxic metal levels in organic versus conventional food, and organic crops had on average 48 percent lower cadmium levels than conventional crops. Cadmium is a highly toxic metal that can cause kidney failure, bone softening and liver damage. It can accumulate in the body, so even at low levels chronic exposure is dangerous. The findings of this study strongly support the health benefits of organic food.

Neonicotinoid Pesticides Linked to Honeybee Die-Off

A new study published in the Bulletin of Insectology by Harvard researchers found further evidence of the link between neonicotinoid use and Colony Collapse Disorder (CCD), in which bees abandon their hives over the winter and eventually die.

This study was led by Professor Chensheng (Alex) Lu, an advisory board member for The Organic Center and associate professor of Environmental Exposure Biology at the Harvard School of Public Health. It supports his previous research, which found that 94 percent of hives exposed to low levels of the neonicotinoid imidacloprid died within 23 weeks of exposure. The new study added a second neonicotinoid called clothianidin to their observations. The researchers found that the same negative effects were associated with bee exposure to clothianidin as with imidacloprid. “We demonstrated again in this study that neonicotinoids are highly likely to be responsible for triggering CCD in honeybee hives that were healthy prior to the arrival of winter,” said Dr. Lu.

Organically Managed Soils Could Reverse Effects of Climate Change

The Rodale Institute has done some amazing science supporting the benefits of organic agriculture, and its new report, entitled “Regenerative Organic Agriculture and Climate Change,” maintains this high quality of investigation. The report takes an in-depth look at how farming systems affect greenhouse gas emission and illustrates the benefits that organic agriculture can have on climate change. Specifically, the publication focuses on the ability of soil to mitigate climate change when managed organically.

Findings include a decrease of annual greenhouse gas emissions by 40 percent if management of all current cropland transitioned to regenerative organic agriculture. Transitioning global pasture would add to carbon sequestration by 71 percent. “We could sequester more than 100 percent of current annual CO2 emissions with a switch to widely available and inexpensive organic management practices,” the report states.

[via newhope 360]

Pesticides and Potatoes: 3rd Grader’s Science Project Convinces Us to Choose Organic

Watch out world, the next generation of organic food activists is getting started young. Meet Elise. She’s here to show you through her 3nd grade science project (put together with the help of her grandmother) that potatoes and sweet potatoes may look healthy, but if they’re not organic, they could be doused with a scary, tumor-causing chemical called bud nip.

Sweet Elise did an experiment to see how long it would take a sweet potato to sprout in water. She just couldn’t wait for her tater to grow vines, but after waiting three weeks with one sweet potato and another three weeks with another sweet potato, she saw zero growth. When she asked the produce man at the grocery store why her sweet potato was sprout-free, she was informed that these conventional sweet potatoes will never grow vines because of the use of the chemical bud nip.

Bud nip, also called chlorpropham, is a sprout inhibitor that’s applied a month after harvest. Bud nip is not allowed in organic farming, which is obvious from the other two sprout-friendly sweet potatoes she uses later on in the video. It’s definitely not something that you want on your fruits and vegetables because it gets into the meat of the crop as well. And it can poison laboratory animals by causing inflammation of the stomach and intestinal bleeding. Long term exposure can also cause tumors. Bud nip can be found on potatoes, kale, peaches, broccoli and other common fruits and vegetables. Though from my research, it isn’t used on sweet potatoes commonly like it is potatoes.

Watch the video:

via Organic Authority

Smaller But Better! Organic Tomatoes Pack More Nutritional Punch

Research results yield further proof that organic produce is endowed with enhanced nutritional properties.

Organic tomatoes are 40 percent smaller in size and mass than their conventional cousins, but they pack in more nutritional compounds such as Vitamin C, lycopene and other phenolics, a new study has found.

Researchers published their findings Wednesday in the journal PLOS ONE advising conventional fruit and vegetable farmers that if they want better quality tomatoes with higher concentrations of nutritious chemical compounds, they should follow the organic way and stop "systematically" trying to maximize yields by using pesticides and other chemicals to treat diseases, fight pesticides, and battle other environmental stresses.

The report said environmental factors represent a "powerful lever to increase the concentrations in phytochemicals."

The study referenced previous research that shows supplementing a diet with processed tomato products, containing the phytochemical lycopene, has shown to lower biomarkers of oxidative stress and carcinogenesis in healthy and type II diabetic patients, and prostate cancer patients, respectively.

The federal ban on powerful pesticides common in conventional farming systems means organic tomato plants have to work harder to withstand the insects and mites, as well as other eco-factors like drought, nutrient deficiency and damage from the cold and wind.

These "stressing" conditions shorten the developmental period for organic tomatoes, producing lower size and mass, but accelerate ripening, producing more nutritional compounds.

The researchers studies organic and conventional crops grown in Brazil. The organic farm used a compost of animal manure, legume cocktail and sugar cane bagasse incorporated into soil just before sowing.

In the conventional system, the pesticide FASTAC100 was applied when needed and inorganic fertilizer was used as recommended to control stress and maximize yield.

The study pointed out existing research demonstrating that fruits and vegetables from organic farming generally are endowed with enhanced nutritional properties.

A recent comparative study from UC Davis showed that organic tomato juice has a higher phenolic content and hydrophilic antioxidant activity when compared to conventional tomato juice.

Another previous study showed organic strawberries had higher antioxidant concentrations and the ability to inhibit the proliferation of human colon and breast cancer cells more effectively than conventional ones.

[via Sustainable Food News]