Asparagus is a very low calorie vegetable; 100 g fresh spear carries just 20 calories. Its spears contain moderate levels of dietary-fiber. 100 g of fresh spears provide 2.1 g of roughage. Dietary fiber helps control constipation conditions, decrease bad (LDL) cholesterol levels by binding to it in the intestines, and regulate blood sugar levels. Studies suggest that high-fiber diet help cut down colon-rectal cancer risks by preventing toxic compounds in the food from absorption.Fresh asparagus are rich sources of folates, fair amount of anti-oxidant vitamin such as vitamin C, A, E, and good in minerals Its shoots are also rich in B-complex group of vitamins such as thiamin, riboflavin, niacin, vitamin B-6 (pyridoxine), and pantothenic acid.
Store in the refrigerator set at 38 to 40 degrees F and 90% to 95% relative humidity. At higher temperatures, its spears tend to lose natural sugars, vitamin-C, as well as flavor, and they become tough and begin to decay.