 Researchers say this is because plant-based diets lower the levels of C-reactive proteins, which are commonly produced by animal products, sugary foods, and refined grains, and are like jet fuel when it comes to triggering the inflammation that causes pain and swelling. Bottom line, if you're looking for a drug-free way to treat arthritis pain, your new prescription should be a vegan diet. I'm John Tesh with today's Intelligence for Your Life Minute.