If you love chocolate, you may already know that a little can be great for your health. Small portions of dark chocolate may help reduce high blood pressure, reduce LDL (the "bad cholesterol"), and reduce the risk of diabetes by boosting insulin sensitivity. The key here is "dark." Choose dark chocolate with a cacao content of 70 percent or more, and limit your portions to about 1.5 ounces. That ensures you’ll reap the health benefits without adding too many calories.