# Data Dictionary - US Dietary Supplement Label Ingredients - NIH DSLD product × ingredient registry, cleaned

**Units:** stated per column in the descriptions below (this is a relational table; columns mix units).

| column | type | description |
|---|---|---|
| `dsld_id` | int | DSLD label id (with ingredient, the primary key) |
| `brand` | str | Brand name |
| `product_name` | str | Full product name as on the label |
| `product_type` | str | LanguaL product type (Vitamin, Botanical, MVM, …) |
| `off_market` | int | 1 = off market, 0 = on market |
| `entry_year` | int | Year the label entered DSLD |
| `ingredient` | str | Ingredient name as listed |
| `ingredient_group` | str | Ingredient group / canonical grouping |
| `ingredient_category` | str | Ingredient category (vitamin, botanical, other, …) |

*Source: National Institutes of Health, Office of Dietary Supplements - Dietary Supplement Label Database (DSLD).*