what is the nutritional value of rhubarb?
Nutrient content of rhubarb Rhubarb is not especially rich in essential nutrients, and its calorie content is low. However, it is a very good source of vitamin K1, providing around 26–37% of the Daily Value (DV) in a 3.5-ounce (100-gram) serving depending on whether it's cooked ( 2 , 3 ).