Asparagus is truly a nutritional powerhouse: one cup cooked will give you 29% of the Daily Value (DV) of vitamin A, 61% of the DV for folate, 73% of the DV for vitamin C, and a whopping 180% of the DV for vitamin K! Vitamin K plays an essential role in blood clotting and also helps to build healthy bones. (See more asparagus nutrition facts at Self.com.)