Considering a diet higher in alkaline-rich foods? No need to hesitate. Eating acidic foods can cause a build-up of acid waste in our bodies, affecting the way our tissues and organs perform. In fact, an acidic diet is a magnet for disease, sickness and even excess weight (yikes!). It's because our bodies require a blood pH level that is between 7.35 and 7.45 (alkaline), and certain foods can tip this number over the edge. So if you're thinking about changing your pH, here's 10 food swaps to make it happen.