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There are the more immediate health benefits of buying organic: you'll avoid the chemicals, preservatives, and hormones that conventional farms often use to treat their foods. In the Stanford study, just 7 percent of organic foods were found to have traces of pesticides, compared to 38 percent of conventionally-farmed produce. Again, that doesn't mean organic foods will supercharge your health -- you'll just be at less risk of exposure to potentially harmful substances, for whatever that's worth to you. Quantifying that benefit is a contentious area and certainly worthy of more research.