| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don?t know | 60 |
50%
|
| -88 | Other (specify) | 2 |
1.7%
|
| 1 | Vitamin C | 20 |
16.7%
|
| 2 | Citrus fruits (grapes, oranges, lemon) | 38 |
31.7%
|