Asparagus is a nutrient-packed vegetable. It is a very good source of fiber, folate, vitamins A, C, E and K, as well as chromium, a trace mineral that enhances the ability of insulin to transport glucose from the bloodstream into cells.   This salad also includes tomatoes which are the major dietary source of the antioxidant lycopene, which has been linked to many health benefits, including reduced risk of heart disease and cancer. They are also a great source of vitamin C, potassium, folate, and vitamin K.   Avocados and a good source of monounsaturated fat which can reduce your risk of heart disease.  So this salad has a lot of good things going for it!