Wash your food. Peel, if possible. Peeling helps reduce the levels of pesticides that may be on the surface. Peeling does not remove all pesticide residues, since some residues are absorbed into the food. Trim the fat from meats.
Some pesticides collect in animal fat.
Trimming excess fat from meats helps to reduce the amount of such pesticides that would be eaten. Cooking helps reduce some of the pesticide residues in food that are not removable by washing or peeling. Eat a varied diet rich in fruits and vegetables. Specific pesticides are used for specific food crops. Eating a diet with many different fruits, vegetables and grains is a healthy practice in itself.