Vitamin C protects against cancer and heart disease and also helps boost the immune system. Potassium helps regulate the electrolyte balance within cells, and helps maintain normal heart function and blood pressure.
Asparagus is a natural diuretic, and a heart-healthy food, containing no fat, cholesterol or sodium.
In 1991, an Italian researcher reported a compound found in asparagus had shown some antiviral activity in test tube studies.