Coffee

At least six research reports show that people who drink coffee are up to 80 percent less likely to develop Parkinson's, have a 25 percent drop in their risk for colon cancer, an 80 percent drop in their risk for liver cirrhosis, and an almost 50 percent lower risk for gallstones. Not only that, research from Harvard shows that drinking six or more cups of java cuts the risk for Type II diabetes by 54 percent for men and 30 percent for women.

Coffee actually provides more than just the legendary caffeine jolt. It's a big source of antioxidants, containing such compounds as chlorogenic acid and tocopherols and even minerals like magnesium. The trick is not to over-consume it. For some people, excess coffee can increase heartbeat and jitters. However, the increase in blood pressure that many worry about is largely temporary.