Firecracker chow mein
180g egg noodles · 50g red pepper · 20g spring onion · 15g soy sauce · 5g sesame oil · 20g chilli sauce · 6g sesame seeds
415 kcal13.1g protein
Contains: cereals containing gluten, sesame, soya.
A calculator with its workings out
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Set 0–3 portions of each sample dish. The calculator totals energy, protein, carbohydrate, fat and fibre from stated ingredient weights and official UK reference values.
Estimate, not a lab result. Real recipes, suppliers, cooking losses and portions vary. This does not assess dietary needs or whether a meal is suitable for a medical condition.
Method / visible by design
What the number means.
Reference food
Each ingredient maps to a named CoFID 2021 row and food code. Values marked “trace” in the source are treated as zero here.
Recipe weight
Per-100g values are multiplied by the sample ingredient grams printed on every dish, then summed without hidden “health” scoring.
Portions
Your 0–3 choices multiply the raw dish totals. Kilocalories and kilojoules display as whole numbers; macros display to one decimal place.
Open the source and limitation notes
Nutrition source: McCance and Widdowson's CoFID 2021, retrieved 21 July 2026. The public dataset expresses these values per 100g.
Allergen framing: the sample-recipe declarations follow the Food Standards Agency's list of 14 regulated allergens and its March 2025 out-of-home guidance. Written information should support—not replace—a conversation with trained staff.
Not included: supplier “may contain” warnings, substitutions, cross-contact, cooking losses, lab analysis, personal targets or medical interpretation. An adopting restaurant must replace sample recipes with its own signed-off recipes and keep its allergen matrix current.
No API key or external request is needed: the small fallback dataset is local, auditable and works offline. Its pure calculation module can accept a different reviewed provider later without changing the interface.
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