Long-term ailments, highly processed foods, and ongoing exposure to environmental toxins can result in the kind of persistent, low-grade inflammation researchers are linking to premature aging, heart disease, diabetes, Alzheimer's, psoriasis, rheumatoid arthritis, and cancer.
7 of 7 | Coffee
Coffee is acidic and caffeine impairs the absorption of calcium and other minerals. "In addition to be acidic, coffee beans are roasted. These beans have oils in them. Roasted oils become rancid and clog up your liver," writes Kris Carr in her book Crazy Sexy Diet (skirt!).