Calories in Rhubarb, raw
Generic food Raw Fruits
Rhubarb, raw contains 21 kcal per 100 g. A typical serving of 1 cup, diced (122 g) provides about 26 kcal.
Roughly 77% of its calories come from carbohydrates, with 15% from protein and 8% from fat (estimated with general energy factors).
That is less energy than the typical item in fruits and fruit juices on FoodFactly, where the median is 60 kcal per 100 g across 386 foods.
100 g provides 24% of the Daily Value for Vitamin K.
These values are for the raw food. Cooking changes the water content and some nutrients, so cooked versions are listed separately below.
The data comes from USDA FoodData Central: SR Legacy.
Nutrition facts
| Nutrient | Amount per 100 g | % DV |
|---|---|---|
| Calories C | 21 kcal | |
| Total fat ? | 0.2 g | 0.3% |
| Saturated fat ? | 0.053 g | 0.3% |
| Trans fat Z | 0 g | |
| Cholesterol Z | 0 mg | 0% |
| Sodium ? | 4 mg | 0.2% |
| Total carbohydrates C | 4.5 g | 2% |
| Dietary fiber ? | 1.8 g | 6% |
| Total sugars C | 1.1 g | |
| Protein ? | 0.9 g | 2% |
| Vitamin A M | 5 µg | 0.6% |
| Vitamin C ? | 8 mg | 9% |
| Vitamin D Z | 0 µg | 0% |
| Vitamin E I | 0.27 mg | 2% |
| Vitamin K I | 29.3 µg | 24% |
| Thiamin (B1) ? | 0.02 mg | 2% |
| Riboflavin (B2) ? | 0.03 mg | 2% |
| Niacin (B3) ? | 0.3 mg | 2% |
| Pantothenic acid (B5) ? | 0.085 mg | 2% |
| Vitamin B6 ? | 0.024 mg | 1% |
| Folate (B9) C | 7 µg | 2% |
| Vitamin B12 Z | 0 µg | 0% |
| Choline I | 6.1 mg | 1% |
| Calcium ? | 86 mg | 7% |
| Iron ? | 0.22 mg | 1% |
| Magnesium ? | 12 mg | 3% |
| Phosphorus ? | 14 mg | 1% |
| Potassium ? | 288 mg | 6% |
| Zinc ? | 0.1 mg | 0.9% |
| Copper ? | 0.021 mg | 2% |
| Manganese ? | 0.2 mg | 9% |
| Selenium I | 1.1 µg | 2% |
% DV: percent of the FDA Daily Value for adults (reference amounts). Letters show how each value was obtained: M measured, C calculated, L label, Z assumed zero, I imputed. Vitamins and minerals not listed were not reported by the source.
Nutritional breakdown
- Protein 15%
- Carbohydrates 77%
- Fat 8%
Approximate share of calories, using general energy factors (4 kcal/g protein and carbohydrate, 9 kcal/g fat, 7 kcal/g alcohol).
Vitamins and minerals, % Daily Value per 100 g
Nutritional insights
- Protein0.9 gabove the median for fruits and fruit juices (median 0.61 g)
- Fiber1.8 gabove the median for fruits and fruit juices (median 1.6 g)
- Sugars1.1 gin the lowest quarter of fruits and fruit juices (median 11 g)
- Fat0.2 gabove the median for fruits and fruit juices (median 0.19 g)
- Saturated fat0.053 gabove the median for fruits and fruit juices (median 0.021 g)
- Sodium4 mgabove the median for fruits and fruit juices (median 3 mg)
- Protein per 100 kcal4.3 gprotein density, useful for comparing foods with different calorie levels
- Water93.6 gwater per 100 g, which largely explains differences between raw, cooked and dried forms
Full nutrient profile
Fats and cholesterol (2)
| Monounsaturated fat ? | 0.039 g |
|---|---|
| Polyunsaturated fat ? | 0.099 g |
Individual fatty acids (19)
| EPA (omega-3, 20:5 n-3) ? | 0 g |
|---|---|
| DHA (omega-3, 22:6 n-3) ? | 0 g |
| Linoleic acid (omega-6, 18:2) ? | 0.099 g |
| SFA 4:0 ? | 0 g |
| SFA 6:0 ? | 0 g |
| SFA 8:0 ? | 0 g |
| SFA 10:0 ? | 0 g |
| SFA 12:0 ? | 0 g |
| SFA 14:0 ? | 0.001 g |
| SFA 16:0 ? | 0.046 g |
| SFA 18:0 ? | 0.004 g |
| MUFA 18:1 ? | 0.037 g |
| PUFA 18:3 ? | 0 g |
| PUFA 20:4 ? | 0 g |
| MUFA 16:1 ? | 0.001 g |
| PUFA 18:4 ? | 0 g |
| MUFA 20:1 ? | 0 g |
| MUFA 22:1 ? | 0 g |
| PUFA 22:5 n-3 (DPA) ? | 0 g |
Carotenoids (7)
| Beta-carotene M | 61 µg |
|---|---|
| Lycopene M | 0 µg |
| Lutein + zeaxanthin M | 170 µg |
| Retinol Z | 0 µg |
| Carotene, alpha M | 0 µg |
| Vitamin D (D2 + D3), International Units Z | 0 IU |
| Cryptoxanthin, beta M | 0 µg |
Other components (11)
| Water ? | 93.6 g |
|---|---|
| Alcohol ? | 0 g |
| Caffeine Z | 0 mg |
| Ash ? | 0.76 g |
| Theobromine Z | 0 mg |
| Energy ? | 88 kJ |
| Vitamin A, IU M | 102 IU |
| Folic acid Z | 0 µg |
| Folate, food ? | 7 µg |
| Vitamin E, added Z | 0 mg |
| Vitamin B-12, added Z | 0 µg |
Other forms of Rhubarb
Raw, cooked, dried and processed versions are separate records with their own measured values.
| Food | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|
| Rhubarb, wild, leaves (Alaska Native) | 61 | 4.2 g | 9.9 g | 0.5 g |
| Rhubarb, frozen, uncooked Frozen | 21 | 0.55 g | 5.1 g | 0.11 g |
| Rhubarb, frozen, cooked, with sugar Cooked | 116 | 0.39 g | 31.2 g | 0.05 g |
| Rhubarb | 73 | 0.81 g | 17.4 g | 0.22 g |
Per 100 g. Calories in kcal. n/a: not reported by the source.
Foods with a similar nutritional profile
| Food | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|
| Watermelon, seedless, rind only, raw Raw | 19 | 0.53 g | 4.2 g | 0.07 g |
| Lemon, raw, without peel Raw | 29 | 1.1 g | 9.3 g | 0.3 g |
| Grapefruit, raw, pink and red, Florida Raw | 30 | 0.55 g | 7.5 g | 0.1 g |
| Acerola, (west indian cherry), raw Raw | 32 | 0.4 g | 7.7 g | 0.3 g |
| Winter squash, raw Raw | 26 | 1 g | 6.5 g | 0.1 g |
| Strawberries, raw Raw | 32 | 0.67 g | 7.7 g | 0.3 g |
| Lime juice, raw Raw | 25 | 0.42 g | 8.4 g | 0.07 g |
| Lemon juice, raw Raw | 22 | 0.35 g | 6.9 g | 0.24 g |
Per 100 g. Calories in kcal. n/a: not reported by the source.
Frequently asked questions
How many calories are in raw rhubarb?
100 g of raw rhubarb has 21 kcal. 1 cup, diced (122 g): about 26 kcal. 1 stalk (51 g): about 11 kcal.
How much protein is in raw rhubarb?
Raw rhubarb contains 0.9 g of protein per 100 g (2% of the 50 g Daily Value), or 1.1 g in 1 cup, diced (122 g). About 15% of its calories come from protein. Compared with other fruits and fruit juices, that is above the median (median 0.61 g).
How many carbs are in raw rhubarb?
Raw rhubarb has 4.5 g of total carbohydrates per 100 g, including 1.8 g of fiber and 1.1 g of sugars.
How much fat is in raw rhubarb?
Raw rhubarb contains 0.2 g of fat per 100 g, of which 0.053 g is saturated (0.3% of the Daily Value).
What vitamins and minerals does raw rhubarb contain?
Per 100 g, the most notable amounts relative to the Daily Value are Vitamin K (24% DV). The full list is in the vitamins and minerals table above.
How much sodium is in raw rhubarb?
100 g contains 4 mg of sodium, 0.2% of the 2,300 mg Daily Value.
Does rhubarb have the same nutrition raw and frozen?
No. Per 100 g, rhubarb, raw has 21 kcal, while rhubarb, frozen, uncooked has 21 kcal. Processing changes the water content, so always use the record that matches how you weigh the food.
Where does this nutrition data come from?
From USDA FoodData Central: SR Legacy, record dated April 1, 2019. FoodFactly last checked it on November 6, 2026. Each value above shows whether it was measured, calculated or taken from a label.
Source of the nutrition information
- USDA FoodData Central: SR Legacy, record 167758. License: CC0 1.0 (U.S. public domain). Source record dated April 1, 2019. Imported November 6, 2026.
Last updated: . Data quality score: 100/100 (how it is calculated).
General nutrition information, not medical advice. Individual needs differ; see our disclaimer.