Nutrition working

White Fish Baked on Creamed Spinach with Crushed Potato: 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)
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)
Baby Spinach200 gF008749 — Spinach, baby, fresh, raw136 (68/100 g)32.5 (16.3/100 g)5.6 (2.8/100 g)0 (0/100 g)5 (2.5/100 g)0 (0/100 g)172 (86/100 g)182 (91/100 g)1220 (610/100 g)
Reduced-Fat Milk464 gF005614 — Milk, cow, fluid, reduced fat (~1%)839.8 (181/100 g)200.7 (43.3/100 g)15.3 (3.3/100 g)22.3 (4.8/100 g)0 (0/100 g)5.6 (1.2/100 g)167 (36/100 g)533.6 (115/100 g)723.8 (156/100 g)
Skim Milk Powder70 gF005652 — Milk, powder, cow, skim1063.3 (1519/100 g)254.1 (363/100 g)24.4 (34.9/100 g)39.2 (56/100 g)0 (0/100 g)0.6 (0.8/100 g)294 (420/100 g)770 (1100/100 g)1260 (1800/100 g)
Plain Flour25 gF004007 — Flour, wheat, white, plain369.8 (1479/100 g)88.4 (353.5/100 g)2.5 (10/100 g)18.3 (73.2/100 g)0.6 (2.2/100 g)0.3 (1.3/100 g)0.8 (3/100 g)5.3 (21/100 g)42.5 (170/100 g)
Unsalted Butter40 gF001971 — Butter, plain, no added salt1227.6 (3069/100 g)293.4 (733.5/100 g)0.4 (1.1/100 g)0.2 (0.6/100 g)0 (0/100 g)32.9 (82.2/100 g)4 (10/100 g)6.8 (17/100 g)9.2 (23/100 g)
Parmesan30 gF002479 — Cheese, parmesan, fresh469.5 (1565/100 g)112.2 (374/100 g)9.6 (32/100 g)0 (0/100 g)0 (0/100 g)8.1 (27/100 g)300 (1000/100 g)284.4 (948/100 g)23.4 (78/100 g)
Potato700 gF007325 — Potato, pale skin, peeled, raw1694 (242/100 g)404.9 (57.8/100 g)14 (2/100 g)80.5 (11.5/100 g)7.7 (1.1/100 g)0 (0/100 g)28 (4/100 g)21 (3/100 g)2660 (380/100 g)
Olive Oil25 gF006177 — Oil, olive923.8 (3695/100 g)220.8 (883.1/100 g)0 (0/100 g)0 (0/100 g)0 (0/100 g)25 (99.9/100 g)0 (0/100 g)0 (0/100 g)0 (0/100 g)
Lemon Juice15 gF004726 — Juice, lemon16.7 (111/100 g)4 (26.5/100 g)0.1 (0.6/100 g)0.3 (1.8/100 g)0.3 (2/100 g)0 (0.1/100 g)0.5 (3/100 g)3 (20/100 g)21 (140/100 g)
Garlic5 gF004193 — Garlic, peeled, raw26.1 (522/100 g)6.2 (124.8/100 g)0.3 (6.1/100 g)0.5 (10.2/100 g)0.8 (16.9/100 g)0.1 (2.8/100 g)0.4 (8/100 g)1.5 (30/100 g)25.5 (510/100 g)
Salt0.5 gF007878 — Salt, table, iodised0 (0/100 g)0 (0/100 g)0 (0/100 g)0 (0/100 g)0 (0/100 g)0 (0/100 g)190.8 (38168/100 g)0.2 (34/100 g)0.5 (98/100 g)
Whole recipe9472.52264187.5161.314.492.41607.52011.78163.9
Per serving (÷ 4)2368.156646.940.33.623.1401.9502.92041

Oxalate

332 mg per serving (1330 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)
Baby Spinach200 gas weighed5671134
Potato700 gas weighed23161
White Fish600 gas weighed318
Plain Flour25 gas weighed328
Reduced-Fat Milk464 gas weighed15
Olive Oil25 gas weighed51
Unsalted Butter40 gas weighed21
Skim Milk Powder70 gas weighed11
Parmesan30 gas weighed21
Garlic5 gas weighed90
Lemon Juice15 gas weighed10
Salt0.5 gas weighed00
Per serving (÷ 4)332
Baby Spinach
The OHF publishes only cooked spinach. Recipes here use it raw as well, and raw spinach is the higher of the two per 100 g because boiling leaches oxalate away, so a raw-spinach dish is understated by this figure rather than overstated.
Skim Milk Powder
The OHF has no milk powder. Fluid milk is used, which understates the powder per gram because the water has been removed from it.

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.

  • 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.

White Fish
Weighed raw as skinless boneless fillet before cooking; the not-further-defined raw record matches the ledger canonical and suits the unspecified mild white fish.
Baby Spinach
Weighed raw and wilted in the pan or eaten raw in salads; ledger key carried over verbatim from the published book.
Reduced-Fat Milk
Ingredient name specifies reduced fat, so the ~1% fluid cow's milk record is used rather than the regular-fat record that serves the plain milk ingredient.
Skim Milk Powder
Weighed as dry powder before it is whisked into liquid milk to fortify it; the skim powder record matches the nonfat dry milk the recipes specify.
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.
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.
Parmesan
Weighed as a hard cheese and grated at the point of use; the fresh parmesan record matches the ledger canonical and is preferred over the dried finely grated record, which is far more concentrated.
Potato
Weighed raw, peeled and diced, before boiling or roasting; ledger key carried over verbatim from the published book.
Olive Oil
Measured from the bottle, plain or extra-virgin; AUSNUT has a single olive oil record and the ledger key is carried over verbatim.
Lemon Juice
Measured as squeezed juice, not whole fruit; ledger key carried over verbatim from the published book.
Garlic
Weighed or counted as raw peeled cloves before cooking; ledger key carried over verbatim from the published book.
Salt
Weighed or added to taste from the packet; iodised table salt matches the fine salt the recipes specify, and the ledger key is carried over verbatim.

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.