Rhubarb, raw
Rhubarb, raw is a fruit, providing just 22.5 calories per 100g. This fruit is virtually fat-free. Fruits are naturally rich in vitamins, dietary fiber, and antioxidants. They are an important part of a balanced diet and contribute to daily micronutrient needs. Our database tracks 70 nutrients for this food, plus environmental footprint data.
Top Nutrients
Data for 70 of 150 tracked nutrients
Nutrient Fingerprint
How this food scores across key nutrient categories, as a percentage of the daily recommended value per 100 g. Based on USDA DRIs for adults.
Complete Nutrient Profile
Macronutrients 10
| Nutrient | Per 100g | Unit | Per Serving | % DV |
|---|---|---|---|---|
| Water AFCD | 92.9 | g | — | 2% |
| Calories AFCD | 22.5 | kcal | — | — |
| Energy (kJ) SR | 88.0 | kj | — | — |
| Protein SR | 0.90 | g | — | 2% |
| Total Fat AFCD | 0.20 | g | — | — |
| Carbohydrate SR | 4.5 | g | — | 4% |
| Fiber AFCD | 2.2 | g | — | 6% |
| Total Sugars SR | 1.1 | g | — | — |
| Starch AFCD | 0 | g | — | — |
| Ash AFCD | 0.30 | g | — | — |
Minerals 10
| Nutrient | Per 100g | Unit | Per Serving | % DV |
|---|---|---|---|---|
| Calcium AFCD | 26.0 | mg | — | 3% |
| Iron AFCD | 0.30 | mg | — | 4% |
| Magnesium AFCD | 10.0 | mg | — | 2% |
| Phosphorus AFCD | 14.0 | mg | — | 2% |
| Potassium AFCD | 130 | mg | — | 4% |
| Sodium AFCD | 12.0 | mg | — | 1% |
| Zinc AFCD | 0.30 | mg | — | 3% |
| Copper SR | 0.02 | mg | — | 2% |
| Manganese SR | 0.20 | mg | — | 8% |
| Selenium AFCD | 1.1 | µg | — | 2% |
Vitamins 26
| Nutrient | Per 100g | Unit | Per Serving | % DV |
|---|---|---|---|---|
| Vitamin A (RAE) AFCD | 17.0 | µg | — | 2% |
| Vitamin A (IU) SR | 5.0 | IU | — | — |
| Retinol AFCD | 0 | µg | — | — |
| Beta-Carotene AFCD | 90.0 | µg | — | — |
| Alpha-Carotene AFCD | 10.0 | µg | — | — |
| Beta-Cryptoxanthin AFCD | 10.0 | µg | — | — |
| Lycopene SR | 0 | µg | — | — |
| Lutein + Zeaxanthin SR | 170 | µg | — | — |
| Vitamin C AFCD | 8.0 | mg | — | 9% |
| Vitamin D SR | 0 | µg | — | — |
| Vitamin D (IU) AFCD | 0 | IU | — | — |
| Vitamin D2 AFCD | 0 | µg | — | — |
| Vitamin D3 AFCD | 0 | µg | — | — |
| Vitamin E AFCD | 0.30 | mg | — | 2% |
| Vitamin K1 SR | 29.3 | µg | — | 24% |
| Thiamin (B1) AFCD | 0.11 | mg | — | 9% |
| Riboflavin (B2) AFCD | 0.04 | mg | — | 3% |
| Niacin (B3) AFCD | 0.70 | mg | — | 4% |
| Pantothenic Acid (B5) SR | 0.09 | mg | — | 2% |
| Vitamin B6 AFCD | 0.02 | mg | — | 2% |
| Folate AFCD | 7.0 | µg | — | 2% |
| Folic Acid SR | 0 | µg | — | — |
| Folate (food) AFCD | 7.0 | µg | — | — |
| Folate (DFE) AFCD | 7.0 | µg | — | — |
| Vitamin B12 AFCD | 0 | µg | — | — |
| Choline SR | 6.1 | mg | — | 1% |
Fatty Acids 9
| Nutrient | Per 100g | Unit | Per Serving | % DV |
|---|---|---|---|---|
| Saturated Fat AFCD | 0 | g | — | — |
| Monounsaturated Fat AFCD | 0 | g | — | — |
| Polyunsaturated Fat AFCD | 0 | g | — | — |
| Trans Fat AFCD | 0 | g | — | — |
| Cholesterol AFCD | 0 | mg | — | — |
| Omega-3 ALA AFCD | 0 | g | — | — |
| Omega-3 EPA AFCD | 0 | g | — | — |
| Omega-3 DPA AFCD | 0 | g | — | — |
| Omega-3 DHA AFCD | 0 | g | — | — |
Individual Fatty Acids 10
| Nutrient | Per 100g | Unit | Per Serving | % DV |
|---|---|---|---|---|
| Butyric Acid (4:0) SR | 0 | g | — | — |
| Caproic Acid (6:0) SR | 0 | g | — | — |
| Caprylic Acid (8:0) SR | 0 | g | — | — |
| Capric Acid (10:0) AFCD | 0 | g | — | — |
| Lauric Acid (12:0) SR | 0 | g | — | — |
| Myristic Acid (14:0) SR | 0.001 | g | — | — |
| Palmitic Acid (16:0) SR | 0.05 | g | — | — |
| Stearic Acid (18:0) SR | 0.004 | g | — | — |
| Linoleic Acid (18:2) AFCD | 0 | g | — | — |
| Linolenic Acid (18:3) SR | 0 | g | — | — |
Amino Acids 1
| Nutrient | Per 100g | Unit | Per Serving | % DV |
|---|---|---|---|---|
| Tryptophan AFCD | 0.02 | g | — | — |
Phytochemicals 1
| Nutrient | Per 100g | Unit | Per Serving | % DV |
|---|---|---|---|---|
| Oxalic Acid AFCD | 400 | mg | — | — |
Nutrient Density Score
The NRF9.3 score measures overall nutritional quality per 100 kcal. It rewards 9 nutrients to encourage (protein, fiber, vitamins A, C, E, calcium, iron, magnesium, potassium) and penalizes 3 to limit (saturated fat, added sugars, sodium). Higher is better; negative scores indicate the food is high in limit nutrients relative to its beneficial content.
NRF9.3 index: Fulgoni et al. (2009), J Nutr 139(8). DVs based on FDA 2020 reference values.
Nutrient Interactions in This Food
Nutrients in this food that enhance or compete with each other during absorption.
✔ Synergies — nutrients that help each other
Vitamin K is fat-soluble. Absorption increases significantly when consumed with dietary fat, particularly for phylloquinone (K1) from plant sources.
Gijsbers et al., Br J Nutr, 1996
How Cooking Changes Nutrients
Estimated percentage of each nutrient retained after cooking, based on USDA retention factors for the “Fresh Fruits” food category. Values of 100% mean no loss; lower values indicate nutrients lost to heat, water, or oxidation.
Source: USDA Table of Nutrient Retention Factors, Release 6 (2007). Retention values are category-level averages — actual retention depends on cooking time, temperature, and water volume.
Environmental Impact
Environmental footprint per kilogram of food produced. Data represents the global average for the “Other Fruit” category.
- Global averages: These figures are production-weighted averages from a meta-analysis of ~38,700 farms across 119 countries (Poore & Nemecek, 2018). Actual impact varies enormously by farming method, geography, and supply chain.
- System boundary: Cradle-to-retail only — does not include consumer transport, home cooking energy, or food waste.
- Soil carbon not included: This data does not account for soil carbon sequestration. Some argue that well-managed regenerative grazing partially offsets ruminant emissions; however, full lifecycle accounting — including methane, land-use change, and the opportunity cost of using land for grazing vs. reforestation — typically makes the net footprint of ruminant meat higher, not lower. This is especially relevant in temperate grassland regions like Ireland.
- Not gospel: This data is informational and illustrative. It is useful for understanding relative magnitudes, but should not be treated as precise measurements for any individual product or farm.
Source: Poore & Nemecek (2018), Science 360(6392). Meta-analysis of ~38,700 farms, 119 countries, 46 product categories.
Global Supply: Fruits
Top 10 countries by per capita supply of the “Fruits” food group (kcal/capita/day, 2023). This is food group–level data from FAO Food Balance Sheets, not specific to this individual food.
Global Supply Trend (1961–2023)
+38%Source: FAO Food Balance Sheets (2023). Supply = production + imports − exports − waste, converted to kcal/capita/day.
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Frequently Asked Questions
How many calories are in Rhubarb, raw?
Rhubarb, raw contains 22.5 kcal per 100 grams, making it a very low-calorie food. The energy comes from 0.90g of protein (16% of calories), 0.20g of fat (8%), and 4.5g of carbohydrates (81%). Carbohydrates are the primary energy source.
What is Rhubarb, raw most nutritious for?
The standout nutrient in Rhubarb, raw is Vitamin K1, providing 29.3 µg per 100g (24% of the Daily Value). It is also a notable source of Thiamin (B1) (9% DV). Our database tracks 70 individual nutrients for this food, allowing detailed comparison across vitamins, minerals, amino acids, and fatty acids.
Is Rhubarb, raw high in protein?
At 0.90g per 100 grams, Rhubarb, raw is not a significant source of protein. Pair with protein-rich foods like legumes, meat, fish, or dairy to meet daily protein needs.
How much fiber is in Rhubarb, raw?
Rhubarb, raw contains 2.2g of fiber per 100 grams, which is a small amount. To increase fiber intake, consider pairing with high-fiber foods such as legumes, whole grains, or vegetables.