Rajma: what it contains and why it matters
Rajma is red kidney beans. This page lists its nutritional content from published sources and explains which lab parameters it relates to.
Last reviewed: 2026-09-04
Nutritional content of rajma
Per 100 g edible portion, from published composition data.
| Nutrient | Per 100 g | Source |
|---|---|---|
| EnergyMature seeds, raw | 337 kcal | USDA |
| ProteinMature seeds, raw | 22.53 g | USDA |
| CarbohydrateCarbohydrate by difference | 61.29 g | USDA |
| Total dietary fiberIncludes soluble and insoluble fractions | 24.9 g | USDA |
| IronNon-heme iron | 6.69 mg | USDA |
| FolateTotal dietary folate | 394 µg | USDA |
| Potassium | 1359 mg | USDA |
| Magnesium | 138 mg | USDA |
| Calcium | 83 mg | USDA |
| Phosphorus | 406 mg | USDA |
Which lab parameters does rajma relate to?
Iron
Iron is needed to make haemoglobin, the protein in red blood cells that carries oxygen around the body [WHO].
Understand your Haemoglobin result →See all iron-rich foods →
Folate
Folate is needed to make and repair DNA and to form red blood cells [WHO].
Potassium
Potassium helps nerves and muscles work and helps balance the body's fluids [WHO].
Magnesium
Magnesium supports muscle and nerve function and helps build bone [WHO].
Understand your Magnesium result →See all magnesium-rich foods →
Protein
Dietary protein provides the amino acids the body uses to build and repair tissue [WHO].
Vegetarian and dietary notes
Rajma is an unprocessed legume suitable for vegetarian and vegan diets, containing no cholesterol or animal-derived constituents.
Frequently asked questions
What is the primary macronutrient composition of raw rajma?
Raw red kidney beans provide approximately 61.29 g of carbohydrates, 22.53 g of protein, and 1.06 g of total lipid per 100 g [USDA].
What biological role does the folate in red kidney beans serve?
Raw red kidney beans contain 394 µg of folate per 100 g [USDA], a water-soluble B-vitamin that functions as a coenzyme in the synthesis of DNA and RNA and in the metabolism of amino acids.
How much dietary fiber is present in raw rajma?
Raw red kidney beans contain 24.9 g of total dietary fiber per 100 g [USDA], which adds bulk to the contents of the intestinal tract and affects gastrointestinal transit.
What is the mineral function of potassium and magnesium found in rajma?
Red kidney beans supply 1359 mg of potassium and 138 mg of magnesium per 100 g [USDA]; potassium functions in maintaining transmembrane electrical gradients and fluid volume, while magnesium serves as an essential cofactor for over 300 enzyme systems.
What form and quantity of iron is found in rajma?
Raw red kidney beans supply 6.69 mg of non-heme iron per 100 g [USDA], an elemental component of heme proteins including hemoglobin, which binds and transports molecular oxygen.
Sources
- USDA — USDA FoodData Central, Agricultural Research Service. https://fdc.nal.usda.gov/
- WHO — World Health Organization — nutrition fact sheets. https://www.who.int/