Nutrition for Rhubarb

Calories, Protein, Vitamins and More

image of rhubarb source

Rhubarb Nutrition Summary

One cup of rhubarb (122 grams or 0.3 lb) contains 26 calories and 1.1 grams of protein. Rhubarb consist of 94% water, 5% carbohydrates, and less than 1% of protein or fat.

Rhubarb is an excellent source of many nutrients, including dietary fiber, calcium and potassium. It also contains significant amounts of Vitamin C and manganese.

In one cup of rhubarb:

  • Calories: 26
  • Protein: 1.1 g
  • Sugar: 1.3 g
  • Dietary fiber: 2.2 g
  • Fat: 0.2 g, (Saturated: 0.1 g)
  • Sodium: 4.9 mg
There is no significant amounts of cholesterol in rhubarb.

See the Rhubarb Nutrition Chart for complete recommended daily values.
The specific nutritional values from USDA is for: Rhubarb, raw.

Calories in Rhubarb

Rhubarb has 26 calories per cup or 21 calories for every 100 grams. Most of its calories are from carbohydrates and protein.

78% of calories in rhubarb are from carbohydrates, 16% of calories are from protein and 6% of calories are from fat.

Calories from Carbs

The majority, or 78% of the calories in rhubarb are from carbohydrates. The carbs in rhubarb are mostly in the form of dietary fiber and sugar (63% and 37%). 1 cup of rhubarb has 9% of daily values or 2.2 grams of dietary fiber.

  • Dietary fiber: 2.2 g
  • Sugar: 1.3 g
There is no significant amounts of starch in rhubarb.

Calories from Fat

A small portion, or 6% the calories in Rhubarb are from fat. Rhubarb is very low in total fat, with 0.2 grams per cup. Most of the fat in rhubarb are healthier unsaturated fats.

Rhubarb is cholesterol free and trans-fat free.

  • Total fat: 0.2 g
  • Saturated fat: 0.1 g
  • Polyunsaturated fat: 0.1 g
There is no significant amounts of cholesterol, trans fat or monounsaturated fat in rhubarb.

Omega-6 in Rhubarb

A source of omega-6 fatty acids, every cup of rhubarb contains a total of 0.1 grams of omega-6. In addition, a large portion of the omega-6 in rhubarb comes from linolenic acid - the only essential omega-6 fatty acid. [2]

  • linoleic acid: 0.12 g

Calories Similar to Rhubarb

Some other fruits or fruit juices with similar calories to rhubarb by weight:

Protein in Rhubarb

One cup of Rhubarb has 1.1 grams of protein or about 2% of daily recommended intake. Rhubarb is relatively low in protein, and is not a source of complete protein, containing little or small amounts of the majority of the nine essential amino acids.

  • Protein: 1.1 g
There is no significant amounts of tryptophan, threonine, isoleucine, leucine, lysine, methionine, phenylalanine, valine or histidine in rhubarb.

Protein Similar to Rhubarb

Some other fruits or fruit juices with similar amounts of protein to rhubarb by weight:

Vitamins and Minerals in Rhubarb

An good source of nutrients, rhubarb contains abundant amounts of calcium and potassium. In fact, a single cup of rhubarb contains 15% of recommended daily values or 351.4 milligrams of potassium. Also an excellent source of calcium, a single cup of rhubarb contains 10% of recommended daily values or 104.9 milligrams of calcium.

Vitamins in rhubarb (1 cup):
  • Vitamin a: 6.1 ug
  • Niacin: 0.4 mg
  • Vitamin c: 9.8 mg
  • Vitamin e: 0.3 mg
  • Folate: 8.5 ug
  • Vitamin k: 35.7 ug
Minerals in rhubarb (1 cup):
  • Calcium: 104.9 mg
  • Potassium: 351.4 mg
  • Iron: 0.3 mg
  • Magnesium: 14.6 mg
  • Zinc: 0.1 mg
  • Selenium: 1.3 ug
  • Phosphorus: 17.1 mg
  • Manganese: 0.2 mg
  • Choline: 7.4 mg
There is no significant amounts of copper, thiamin, riboflavin, pantothenic acid, vitamin b6 or vitamin b12 in rhubarb.

Similar to Rhubarb for Potassium

Here are some other fruits or fruit juices with similarly abundant amounts of potassium to rhubarb:

Flavonoids and Carotenoids in Rhubarb [3]

Rhubarb contains a number of healthy phytonutrients and antioxidants, specifically carotenoids beta-carotene and lutein + zeaxanthin. In one cup of rhubarb:

  • beta-carotene: 74 ug
  • lutein + zeaxanthin: 207 ug

Rhubarb Nutrition Chart


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Nutrition calculations are from Harvard Medical's nutrient guidelines [1] and USDA's food central database (2019) [2].
We calculated values from 2000 kCal daily recommended diet.

Rhubarb in Cooking

Rhubarb is in the top 10% of most popular ingredients for recipes. Rhubarb can be consumed raw and is often chopped or trimmed before cooking or serving. Most recipes call for 2 or 4 cups of rhubarb.

Friends and Relatives of Rhubarb

Foods commonly cooked with rhubarb: Other similar relatives:

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