• Dr. Elly Jenkyns ND

Why and when Choose Organic? 2020 UPDATE

For all of my patients who wonder why I ask them to choose organic foods as much as possible (and for all of my friends and family who wonder why I spend $ on organics), this post is the answer. Be sure to click on the links to read the full studies.

Not only are they less toxic, but studies consistently show that organically grown foods are higher in health promoting nutrients including Essential Fatty Acids than conventional.

Organic Foods Have Fewer Pesticide Residues than Conventional Foods

In a 2014 study, authors analyzed 343 research papers in the largest research effort of its kind and found meaningful differences in composition between organic and non-organic crops. Pesticide residues were 4 times higher in conventional crops, which also contained significantly higher concentrations of the toxic metal cadmium. Substantially higher – up to 60% – levels of a range of antioxidants, minerals and vitamin compounds were found in organics.

Organic tomatoes contain higher levels of quercetin, organic oranges have higher vitamin C levels, and organic red wine contain higher levels of resveratrol, polyphenols and other antioxidants. Organic tomato ketchup can contain as much as 3 times the cancer-fighting lycopene as non-organic ketchup.

These findings are important because declining nutrient content in food crops are well documented, as are nutrient deficiencies in people. 

To help consumers decide which foods to definitely buy organic, the Environmental Working Group releases a report each year that reveals food levels of pesticide residues; the Shoppers Guide to Pesticides in Produce.

The Dirty Dozen lists the highest amounts found, while the Clean 15 lists the produce with the least pesticides. This is their list for 2020:

The Dirty Dozen

  1. Strawberries

  2. Spinach

  3. Kale

  4. Nectarines

  5. Apples

  6. Grapes

  7. Peaches 

  8. Cherries

  9. Pears 

  10. Tomatoes

  11. Celery

  12. Potatoes

The Clean 15 

  1. Avocados

  2. Sweet Corn

  3. Pineapple

  4. Onions 

  5. Papaya

  6. Sweet Peas (Frozen)

  7. Eggplant

  8. Asparagus

  9. Cauliflower

  10. Cantaloupe 

  11. Broccoli

  12. Mushrooms

  13. Cabbage

  14. Honeydew Melon

  15. Kiwi

So organic foods are more nutritious and less toxic. But how does eating organics actually affect our bodies?

A fascinating study by the University of Washington analyzed pesticide breakdown products in preschool children and found that kids eating organic fruits and veggies had average concentrations 9 times lower than children eating conventional produce. The researchers concluded that organic produce can reduce children’s pesticide exposure levels from above to below the EPA’s current guidelines, from a range of uncertain risk to a range of negligible risk.

An earlier study cited by the authors looked at pesticide metabolites in the urine of 96 urban and suburban children and found pesticides in the urine of all children but one. The parents of the child with no pesticide metabolites reported buying exclusively organic produce.

The same researchers later showed that switching children to a largely organic diet could quickly and dramatically reduce the amounts of pesticide residues in their bodies.

This is particularly important in light of studies showing that chronic low-level exposure to pesticides may affect neurologic functioning, neurodevelopment, and growth in children.

Okay, so I’ve addressed why we should choose organic. And when we should choose organic – the Dirty Dozen. But sometimes we don’t have access to an organic variety, and sometimes the price difference between organic and conventional seems large. The good news is that there are ways we can reduce the amount of chemicals on nonorganic produce.

Measurements of several pesticide residues before and after treatment have been investigated. Peeling fruits and veggies removed almost all pesticide residues. Washing produce can also reduce the levels of certain chemicals. Different acid solutions were tested against neutral and alkaline solutions and tap water. Acidic solutions worked best for pesticide residues (87.9-100% removal of each chemical).

Check out my recipe for DIY acid wash Pesticide Remover.

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