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Measured amounts of folic acid in the different bread types.
| Bread category | Number of samples | Median amount of folic acid (μg/100 g) | Mean amount of folic acid (μg/100 g) | Standard deviation (μg/100 g) | Number of samples with no folic acid |
|---|---|---|---|---|---|
| White sandwich loaf | 28 | 205 | 200 | 52 | 0 |
| Flat breads/wraps | 8 | 190 | 197 | 74 | 0 |
| Wholemeal sandwich loaf | 16 | 190 | 189 | 37 | 0 |
| English muffin | 8 | 165 | 180 | 33 | 0 |
| Multigrain & seeds sandwich loaf | 17 | 160 | 164 | 32 | 0 |
| Organic | 7 | 36 | 39 | 40 | 1 |
| Gluten free | 16 | 7 | 21 | 27 | 6 |
