The extra cost of organic fruits and veggies may be worth it, especially if you’re trying to lose weight. There are 15 to 20 chemicals found in pesticides known as “obesogens.” These obesogens have been found to cause weight gain. At the very least, avoid produce high in pesticides, such as apples, strawberries, grapes, celery, peaches, spinach, sweet bell peppers, nectarines, cucumbers, cherry tomatoes, snap peas, potatoes, hot peppers and kale. This is a simple and easy change while shopping at the grocery store, will end up working for you in the long run.