Nutrition data should show its work.

Scope and intended use

Nouriq helps adults organize food logs, nutrition estimates, meal plans, and optional connected-health context. It is not a medical device, diagnostic service, insulin calculator, or substitute for a clinician or registered dietitian.

Numbers in the app are planning estimates. Food composition, label rounding, recipe variation, preparation, and entered portion size can all change the result.

Nutrition source hierarchy

1. User-confirmed package label: useful for the exact branded product and serving when entered accurately.
2. USDA FoodData Central: an authoritative food-composition source for foundation, survey, and branded foods.
3. Open Food Facts: a community-maintained product source used for barcode lookup; entries may be incomplete and should be checked against the package.
4. Other configured providers: used when available, with source provenance retained where the product supports it.
5. Manual estimate: used when no suitable database item exists; users should name and portion it clearly.

Source provenance and a plausible macro profile matter more than a false appearance of decimal precision.

Portions, carbohydrate, and fiber

Nouriq scales calories and nutrients from the selected source serving to the amount logged. If the base serving is wrong, every scaled value can be wrong; users should confirm grams, household measure, and servings where possible.

For standard U.S. labels, total carbohydrate includes dietary fiber. Nouriq’s net- or available-carbohydrate estimate generally subtracts dietary fiber and may account for supported sugar alcohol information when explicitly available. Because labeling conventions differ, the displayed value remains an estimate.

Glycemic index and glycemic load

GI values should come from human testing performed with a recognized standardized method when such a value is available. Values vary across varieties, ripeness, processing, cooking, and study conditions. Nouriq may use a category estimate when a tested match is unavailable; estimated values should not be presented as laboratory measurements.

Estimated GL = GI × available carbohydrate in the logged serving ÷ 100

The app and public calculator use common GL bands: low at 10 or less, medium at 11–19, and high at 20 or more. A mixed meal and an individual person’s glucose response can differ substantially from this estimate.

Corrections and conflict handling

• A correction should identify the food, serving, value changed, source, and reason.
• A package label can supersede a mismatched community database entry for that exact product.
• Trusted corrections should remain scoped to the matching item rather than silently changing unrelated foods.
• When sources conflict and neither is clearly more applicable, Nouriq should preserve the uncertainty rather than imply certainty.

Material methodology or formula changes require a dated update to this page and regression tests for affected calculations.

Coaching and connected-health context

Automated coaching is general consumer-wellness guidance. Inputs are minimized to the food, meal, target, and user-enabled context needed for the request. Health observations retain source information where possible and should not be treated as clinically verified solely because they came from a connected device.

Coaching must not claim to diagnose disease, prescribe treatment, or direct medication changes. Safety-sensitive questions should be referred to a qualified healthcare professional.

Core references

1. International tables of glycemic index and glycemic load values 2021.
2. USDA FoodData Central.
3. FDA: How to Understand and Use the Nutrition Facts Label.
4. CDC: Diabetes Meal Planning.