Organic foods are produced, processed, and packaged without using chemicals and synthetic fertilizers, pesticides, and herbicides. While there is no evidence that organic foods are more nutritious, organic farming is better for the environment as it reduces pollution and uses less energy and water. Organic standards also aim to maintain natural animal behavior and health while limiting antibiotic use, which has been linked to antibiotic resistance in bacteria. Organic food tends to cost more than conventional food due to the higher costs associated with organic production methods.