| Value | Category | Cases | |
|---|---|---|---|
| -99 | Don?t know | 2 |
3%
|
| -88 | Other (specify) | 0 |
0%
|
| 1 | They protect us from illness | 41 |
61.2%
|
| 2 | They increase our iron intake | 15 |
22.4%
|
| 3 | They increase the quantity of blood | 9 |
13.4%
|