Add Yahoo as a preferred source to see more of our stories on Google. If you remember those restrictive grapefruit diets from the 1980s, you might wince at the idea of putting the words "grapefruit" ...

Grapefruit is high in antioxidants that may benefit heart health and boost the immune system. Grapefruit may interfere with certain medications and cause serious side effects. Enjoy grapefruit plain, ...