Each ingredient’s weight is multiplied by its USDA FoodData Central values per 100 g. The whole recipe is added up and divided by 4. Raw weights are used for meat, fish and vegetables; beans and lentils are drained weights. All of the oil is counted as eaten. Added salt is not included; sodium from stock, bread, cheese and tinned food is.
Calculation, whole recipe| Ingredient | Weight used | Source | Energy | Protein |
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| pork shoulder | 600 g | FDC 167845Pork, fresh, shoulder, whole, separable lean only, rawCalculated with FoodData Central's lean-only shoulder record; trim the outer fat to match it. | 888 kcal | 117.3 g |
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| oranges | 80 g | FDC 169097Oranges, raw, all commercial varieties | 38 kcal | 0.8 g |
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| lime juice | 30 g | FDC 168156Lime juice, raw | 8 kcal | 0.1 g |
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| garlic | 30 g | FDC 169230Garlic, raw | 45 kcal | 1.9 g |
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| ground cumin | 4 g | FDC 170923Spices, cumin seedFoodData Central records cumin seed; ground cumin is the same seed, milled. | 16 kcal | 0.7 g |
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| dried oregano | 2 g | FDC 171328Spices, oregano, dried | 5 kcal | 0.2 g |
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| olive oil | 9 g | FDC 171413Oil, olive, salad or cooking | 80 kcal | 0.0 g |
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| onion | 150 g | FDC 170000Onions, raw | 60 kcal | 1.7 g |
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| water | 150 g | No energy | 0 kcal | 0.0 g |
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| black beans | 480 g | FDC 175238Beans, black, mature seeds, canned, low sodium | 437 kcal | 28.9 g |
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| cooked brown rice | 400 g | FDC 169704Rice, brown, long-grain, cooked (Includes foods for USDA's Food Distribution Program) | 492 kcal | 11.0 g |
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| fresh coriander | 10 g | FDC 169997Coriander (cilantro) leaves, raw | 2 kcal | 0.2 g |
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| Whole recipe | | Divided by 4 | 2070 kcal | 162.8 g |
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Per serving the energy is rounded to the nearest 5 kcal, grams to the nearest whole gram and sodium to the nearest 10 mg. of which sugars could not be calculated, because one ingredient’s record does not cover it; the row above says which. Calculation method 1.0, September 2026. How the calculation works.