Nutrition working

Sweetcorn, Potato & White Fish Chowder: where the numbers come from

Each ingredient is matched to a record in the Australian food-composition data, that record's per-100 g values are scaled to the weight the recipe uses, the results are added, and the total is divided by 4 servings. This page shows all of it, so the estimate can be checked rather than taken on trust.

Back to the recipe · How this method works in general

Per ingredient

IngredientWeightComposition recordEnergy (kJ)Energy (kcal)Protein (g)Carbohydrate (g)Fibre (g)Fat (g)Sodium (mg)Calcium (mg)Potassium (mg)
Unsalted Butter45 gF001971 — Butter, plain, no added salt1381.1 (3069/100 g)330.1 (733.5/100 g)0.5 (1.1/100 g)0.3 (0.6/100 g)0 (0/100 g)37 (82.2/100 g)4.5 (10/100 g)7.7 (17/100 g)10.4 (23/100 g)
Leek175 gF005164 — Leek, raw224 (128/100 g)53.5 (30.6/100 g)2.8 (1.6/100 g)7.2 (4.1/100 g)5.4 (3.1/100 g)0.4 (0.2/100 g)21 (12/100 g)56 (32/100 g)463.8 (265/100 g)
Plain Flour30 gF004007 — Flour, wheat, white, plain443.7 (1479/100 g)106 (353.5/100 g)3 (10/100 g)22 (73.2/100 g)0.7 (2.2/100 g)0.4 (1.3/100 g)0.9 (3/100 g)6.3 (21/100 g)51 (170/100 g)
Low Sodium Stock200 gF008937 — Stock, liquid, all flavours, reduced salt, prepared36 (18/100 g)8.6 (4.3/100 g)0.4 (0.2/100 g)0.8 (0.4/100 g)0 (0/100 g)0.4 (0.2/100 g)482 (241/100 g)6 (3/100 g)122 (61/100 g)
Water600 gF009527 — Water, tap0 (0/100 g)0 (0/100 g)0 (0/100 g)0 (0/100 g)0 (0/100 g)0 (0/100 g)18 (3/100 g)12 (2/100 g)0 (0/100 g)
Potato750 gF007325 — Potato, pale skin, peeled, raw1815 (242/100 g)433.8 (57.8/100 g)15 (2/100 g)86.3 (11.5/100 g)8.3 (1.1/100 g)0 (0/100 g)30 (4/100 g)22.5 (3/100 g)2850 (380/100 g)
Corn300 gF003200 — Corn, boiled, microwaved or steamed, drained1152 (384/100 g)275.3 (91.8/100 g)11.4 (3.8/100 g)39 (13/100 g)13.2 (4.4/100 g)5.7 (1.9/100 g)57 (19/100 g)48 (16/100 g)702 (234/100 g)
Milk618 gF005634 — Milk, cow, fluid, regular fat (~3.5%)1668.6 (270/100 g)398.8 (64.5/100 g)20.4 (3.3/100 g)33.4 (5.4/100 g)0 (0/100 g)21 (3.4/100 g)216.3 (35/100 g)655.1 (106/100 g)877.6 (142/100 g)
White Fish600 gF003956 — Fish, white flesh, raw, not further defined2706 (451/100 g)646.7 (107.8/100 g)115.2 (19.2/100 g)0 (0/100 g)0 (0/100 g)19.8 (3.3/100 g)450 (75/100 g)204 (34/100 g)2178 (363/100 g)
Chives8 gF002907 — Chives, fresh, raw9.6 (120/100 g)2.3 (28.7/100 g)0.1 (1.5/100 g)0.2 (2.6/100 g)0.4 (4.7/100 g)0 (0.3/100 g)0.6 (7/100 g)7.2 (90/100 g)16.8 (210/100 g)
Soft Bread180 gF001463 — Bread, white, commercial1890 (1050/100 g)451.7 (251/100 g)17.1 (9.5/100 g)83.2 (46.2/100 g)5.8 (3.2/100 g)3.6 (2/100 g)790.2 (439/100 g)151.2 (84/100 g)234 (130/100 g)
Whole recipe113262707185.9272.233.788.32070.51175.97505.5
Per serving (÷ 4)2831.5676.746.5688.422.1517.62941876.4

Oxalate

72 mg per serving (287 mg for the whole recipe, divided by 4). This comes from the Oxalosis and Hyperoxaluria Foundation list rather than the Australian composition data above, which does not carry oxalate.

IngredientWeightBasismg per 100 gContributes (mg)
Potato750 gas weighed23173
Soft Bread180 gas weighed2443
Leek175 gas weighed1730
White Fish600 gas weighed318
Plain Flour30 gas weighed3210
Milk618 gas weighed16
Corn300 gas weighed26
Unsalted Butter45 gas weighed21
Chives8 gas weighed50
Low Sodium Stock200 gcarries none00
Water600 gcarries none00
Per serving (÷ 4)72
Low Sodium Stock
Prepared liquid stock is water with roughly one to two per cent solids. The OHF lists no stock, and treating it as an unknown would put an unresolved line in a third of the recipes on the site over a contribution too small to change a band.
Water
Tap water carries no oxalate: oxalate is a plant metabolite and drinking water is not a plant.

Oxalate in a plant moves with variety, ripeness, soil and cooking, and what you absorb depends on the calcium eaten in the same meal rather than on the figure alone. The full table and what it is worth.

Not counted

These lines contribute nothing to the figures above, because they carry no weight or no composition match. Finishing salt and pepper added to taste are deliberately excluded: the amount is the cook's, so counting it would be inventing a number.

  • Ground black pepper, to taste

Why these records

Where a generic database item cannot represent an ingredient exactly, the choice is recorded with the ingredient rather than left to inference.

Unsalted Butter
Ingredient name specifies unsalted, so the plain no-added-salt butter record is used rather than the salted or not-further-defined records.
Leek
Weighed raw, white and pale-green part only, thinly sliced before it is softened in the pan; the cooked leek record was rejected because the weight is taken raw.
Plain Flour
Weighed dry from the packet; plain white flour taken because the ingredient name says plain all-purpose, ruling out self-raising and the vitamin-fortified variants.
Low Sodium Stock
Measured as ready-to-use reduced-salt chicken or vegetable liquid stock; record used for this ingredient for stock, and the all-flavours record covers both.
Water
Contributes no energy or nutrients but mapped honestly rather than skipped; tap water is what the recipes use, and the ledger left this unkeyed.
Potato
Weighed raw, peeled and diced, before boiling or roasting; ledger key carried over verbatim from the published book.
Corn
Both recipes use kernels already cooked, one saying explicitly cooked and cooled. Chose the boiled or steamed drained record over canned kernels drained because the recipes do not specify canned and the canned record carries 170 mg sodium of added brine salt.
Milk
Measured as fluid cow's milk with fat level unspecified, so regular fat is taken per the house rule; ledger key carried over verbatim from the published book.
White Fish
Weighed raw as skinless boneless fillet before cooking; the not-further-defined raw record matches the record used for this ingredient and suits the unspecified mild white fish.
Chives
Used in 2-6 g amounts so contributes almost nothing, but mapped honestly to the fresh raw chives record rather than skipped.
Soft Bread
Recipe lines say soft white sandwich bread with crusts removed, weighed as bought; the commercial white bread record is used rather than the wholemeal record that serves wholegrain-bread.

What this is and is not

These figures match the ones shown on the recipe page exactly, because both come from this same arithmetic.

A composition database gives representative values for a food, not an analysis of your tin, your loaf or your cut of meat. Brands differ, produce varies, and yields change with how long something cooked and how hard it was drained. Treat every figure here as an estimate of the right order rather than a measurement, and where a number matters clinically, take it to whoever is managing your care. CERNERE publishes the working so it can be argued with, not to imply a precision food does not have.