Build a focused nutrition calculator that imports written or photographed recipes, normalizes ingredients, records the cooked yield by weight, and produces editable per-ounce and per-serving values. Add barcode and restaurant lookup as supporting capture methods, while showing calculation assumptions and confidence warnings instead of silently presenting uncertain results. Shared household recipes can be reused and adjusted when ingredients or yields change.

Consumers already demonstrate willingness to scan and log food, while recipe content increasingly originates in captions, photos, and other inconsistent formats. Existing import tools still require enough correction that some users find manual entry easier.