Which fruits and vegetables do you need to buy organic? You might be surprised. Some are more toxic than others due to heavy pesticide use. Pesticides wreak havoc on the body and are endocrine disrupters, causing illness and disease and negatively affecting organ function and immune response. The higher the pesticide levels in your blood, the slower you burn calories while you're sleeping and while you're sedentary. With certainty, persistent consumption of pesticides will result in poor sleep patterns, allergies, and weight gain. See below infographic as a daily reminder of which fruits and vegetables to buy organic.