One cup (34 grams) of watercress contains the following:
Calories: 4
Carbs: 0.4 grams
Protein: 0.8 grams
Fat: 0 grams
Fiber: 0.2 grams
Vitamin A: 22% of the
Reference Daily Intake (RDI)
Vitamin C: 24% of the RDI
Vitamin K: 106% of the RDI
Calcium: 4% of the RDI
Manganese: 4% of the RDI
As you can see, one cup (34 grams) of watercress provides over 100% of the RDI for vitamin K, a fat-soluble vitamin necessary for blood clotting and healthy bones