It is said that a balanced meal includes all flavors of food (salty, sour, bitter, sweet and pungent). This salad offers them all! Bitter, pungent and crunchy watercress, combines very nicely with the sweet, smooth avocado, and the sour and sweet flavor of the grapefruit. 

While testing this recipe, I learned that ripe pineapple is at its peak for a day after it has been cut, and then its flavor and strength rapidly deteriorate. So once cut, eat or drink it within a day or two.