One often reads debates on whether organic produce is better for one’s health than produce grown with the use of herbicides and pesticides. The same is debated in regards to whether there are detrimental effects of eating foods that have been genetically engineered.
From what I have read, the evidence is that there are probably minor advantages vitamin and health-wise in organic produce, and particularly in micro-nutrients. While some pesticides and herbicides wash off, other may be ingested. And how much pesticides stay in or on the produce can depend on the crop as well as other factors. However, given all the multiple factors it is hard to really do a carefully controlled study with real human being under real conditions.
Regarding GMO foods, just too little is yet known to be able to make an informed judgment as to if there is any direct health risk form eating such foods. So, on that score we are really guinea pigs in a world-wide experiment.
Regarding the lab studies on the harm of pesticides and herbicides to people, those are almost useless since they are so far removed from how they actually get used in real life conditions—such as they are usually used in multiple combinations, and those synergistic effects are not tested.
Yet, really such issues miss the main problem with the use of pesticides and herbicides. The reason I eat organic and non-GMO foods has little to do with whether it directly effects my health. It is the effect on the environment that concerns me most. On that score, it is abundantly clear that the use of pesticides, herbicides and the use of genetically engineered crops damage our ecosystem.
These pesticides and herbicides end up in the soil. Then they work their way down into out aquifers and water system, into run off that ends up in stream, rivers, lakes and oceans. The worms and bugs end up ingesting them, then the birds that eat them. The same with the fish and other water microorganisms. These then all work their way up the food chain, collecting in higher dosages, affecting the entire food chain.
The use of these artificial chemicals also ends up depleting the soil, leading to loss of quality topsoil. None of that is really debatable.
Now, about GMOs. What is not generally known is what is the main engineered modification that agribusiness is using. The biggest crops that are genetically engineered are corn and soy, and a huge proportion of the world crop is now GMO. The main purpose of the modification is to make these crops more resistant to herbicides and pesticides. It has little to do with making “better” corn or soy.
Why are they doing this? It has to do with modern mono-cropping and profits. Under normal circumstances, insects and plants play an evolutionary dance. Insects eat the plants, but some plants are more resistant to the bugs than others, and those thrive while the others do not do as well. But some bugs in turn do fine with the new strain of the plant, and those bugs thrive while the others do not do as well. So, both bugs and plants continue to evolve in response to the changes in the other.
Now along comes the agro-chemical-business. They do not like changes in the crop. They want to have one uniform plant that they have bred to their specification. Also, a natural plant, or seed cannot be patented and owned. These large agro-chemical companies do not allow their plants and seeds to naturally evolve. They usually have sterile seed. Therefore each season the farmers have to buy new seed from these companies.
However, the bugs and weeds DO continue to evolve to overcome both natural pest resistance and manufactured pesticides and herbicides. Because of this, larger and larger doses of herbicides and pesticides are needed to have the same effect. But these larger doses also can be harmful to the plants themselves. Therefore, the plants are modified to be resistant to these larger doses of pesticides and herbicides.
The principle modification therefore of soy and corn is to allow higher and higher doses of pesticides and herbicides to be applied to our crops, poisoning our planet even more. The same companies that sell these GMO seeds to the farmers are also selling them the herbicides and pesticides, so they increase their profits on both ends with these practices.
Organic farming practices are generally designed to maintain the quality of the soil and respect our natural environmental ecology. Does it cost more? Only if you ignore the costs to the livability of our planet.