People buy organic food for three main reasons: they believe they are safer, kinder to the environment, or healthier. The health claims for organic foods have been the most tenuous. In a report released this week in the Annals of Internal Medicine, researchers at Stanford University evaluated nearly 250 studies comparing the nutrients in organic vs. traditional foods (fruits, vegetables, grains, poultry, meat, and eggs), and discovered very little difference in nutritional content. Organic produce did have 30% lower pesticide residues than conventional foods, though pesticide levels in both organic and non-organic foods were within allowable safety limits. If you’re buying organic solely for better nutrition, based on this review there’s no evidence you’re gaining any real advantages. But if you’re concerned about pesticides and you can afford organics, it might be worth it to buy them.