A lot of scientific studies have been conducted that prove many chemically engineered pesticides are harmful to humans, especially to pregnant or nursing mothers and children. Not all effects of pesticides are understood yet, so it’s best to avoid them as much as possible unless you like being a lab rat.
When pesticides were tested on animals, it was found they can increase the risk of various cancers, reproductive problems and nervous system issues. The Environmental Protection Agency (EPA) states that 60% of herbicides, 90% of fungicides and 30% of insecticides are known to cause cancer. 1