Avocados aren't just delicious—they're brimming with health benefits. For starters, they’re high in potassium (half an avocado contains 487 milligrams, more than you’ll find in a medium banana), which can help lower blood pressure. Their healthy fats (the monounsaturated kind) can help fight high cholesterol and fend off belly fat. Active women need to make sure they eat enough fat to perform their best. When competitive female runners ate a diet with less than 20 percent fat, they were more likely to suffer injuries than those who consumed at least 31 percent fat, according to researchers at the University of Buffalo. Researchers speculate that the problem is linked to extreme low-fat diets, which weaken muscles and joints. "A few slices of avocado a day are a great way to boost fat for women who are fat-shy," says Leslie Bonci, R.D., director of sports nutrition at the University of Pittsburgh Medical Center.