Additive Lookup Shelf

Additive Lookup Shelf is a simple food label companion for checking common additive codes, names, roles, and use cases while you shop or review pantry items.

Search by additive code, name, category, or label word. Save cards as Okay, Avoid, or Research, then add your own product context and private notes. The shelf summary makes it easy to copy your decisions into a shopping list, family note, or product comparison.

Features:
- Search a built-in additive reference by code, name, role, and common use.
- Filter by preservatives, antioxidants, acidity regulators, colorants, texture additives, and sweeteners.
- Save personal cards with Okay, Avoid, or Research status.
- Add product context and private notes for each saved label item.
- Create manual cards for products or ingredients that matter to you.
- Copy a clear summary of your shelf when you need it.

The app is designed for personal label organization. It does not make medical claims, diagnose conditions, scan barcodes, collect health records, or require an account.