14 Must-Buy Organic Foods
13 of 15
Although kale and collard greens don't qualify for EWG's dirty dozen list under the traditional rating system, they are highlighted due to the high levels of extremely toxic pesticides found on them. Many of these toxic pesticides, such as organophosphate and carbamate insecticides, are no longer found on other produce due to legal restrictions or voluntary phase-outs, but are either still allowed to be used on these leafy greens, or are still found in the soil used to grow them. If you aren't able to find organic kale or collard greens, cooking them helps to diminish the levels found on the produce.