A food diary that keeps up with how you actually eat

What it does

The diary is where food actually gets logged. You can search a food database, scan a package barcode, reuse a saved favourite, build and log a recipe, or schedule meals you eat regularly so they are one tap instead of five.

Every entry rolls up into per-meal and per-day totals covering calories, macros, and micronutrients, plus the quality and satiety signals attached to each food.

Who it is useful for

• •Anyone who eats mostly the same things where saved foods and scheduled meals remove nearly all of the daily effort.
• •People who cook and want a recipe logged once and reused at the right portion rather than rebuilt each time.
• •People who have abandoned tracking before usually because the friction per entry was higher than the value per entry.

What NutrientOS shows you

• •Per-meal and per-day totals for calories, protein, carbohydrate, fat, fibre, and sugar.
• •Micronutrient totals with unmeasured values marked as unknown.
• •Food Grade and satiety on every entry as you log it, not only afterwards.
• •Barcode scanning for packaged food, which is the most accurate way to log a branded item.
• •Recipes, saved foods, and scheduled meals for the food you eat repeatedly.

Known limitations

• •Barcode coverage is not universal. Regional products, own-brand lines, and new packaging are frequently missing, and a barcode can point at an outdated formulation.
• •Crowd-contributed records vary in quality. Where a record comes from a community source rather than a laboratory-analysed database, its provenance is shown so you can weigh it.
• •Recipe accuracy depends on your inputs. Ingredients logged loosely produce a recipe that is loose in the same direction every time you use it.

How missing data is handled

When a nutrient is not present in the underlying record, NutrientOS shows it as unknown rather than as a zero. A blank is honest; a zero would read as "this food contains none of it", which is a different and usually false claim.

How it connects to the rest of NutrientOS

Everything downstream — trends, weekly reviews, micronutrient coverage, biometric correlations — is built from diary entries. The photo scanner, barcode scanner, and restaurant search are all just faster ways into this same diary.