Certain types of fat found in nuts—monounsaturated and polyunsaturated—are the good fats.
Nuts lower blood levels of triglycerides and ldl (bad) cholesterol while raising HDL (good) cholesterol, which helps prevent heart disease.
Many nuts, such as pecans and walnuts, contain a phytochemical called ellagic acid. Ellagic acid seemed to trigger a process known as apoptosis, a process in which cancer cells kill themselves.
Nuts also contain vitamin E, a potent antioxidant that may help ward off heart disease and cancer.
Nuts are still high in fat so they should be eaten by the handful, not the bowlful.
Also avoid eating nuts with junk food, which may be high in saturated fats (like candy, potato chips and doughnuts).