Fiber content
Fiber per 1 slice (32 g): 2 g - that works out to 2.4 g of fiber for each 100 kcal.
| Total fiber, one serving | 2 g (1 slice) |
|---|---|
| Serving weight | 32 g |
| Fiber in 100 g | 6 g |
| Fiber per 100 kcal | 2.4 g |
| Energy, one serving | 81 kcal |
| Women 19-50 (25 g a day) | 8% per serving |
| Men 19-50 (38 g a day) | 5% per serving |
| Label Daily Value (28 g) | 7% per serving |
| Place in grains, by serving | 113th of 186 |
| Place in grains, per 100 kcal | 37th of 186 |
| Food type | Prepared / mixed |
The Dietary Reference Intakes set an Adequate Intake for total fiber of 25 g a day for women aged 19 to 50 and 38 g for men of the same ages. Measured against those, the 2 g in a 1 slice serving of whole wheat bread is 8% of the first and 5% of the second. US food labels use a single Daily Value of 28 g instead, which puts this serving at 7%.
Calorie for calorie, the figure is 2.4 g of fiber per 100 kcal (this serving is 81 kcal). Among the 186 grains with USDA energy data here that is 37th, and 407th across all 957. The intakes above were derived from 14 g of fiber per 1,000 kcal, or 1.4 g per 100 kcal, so this food sits above the ratio a whole day of eating is meant to reach.
Getting all 25 g from whole wheat bread alone would take 13 servings, and 38 g would take 19. Most days reach the target through several different sources.
Soluble vs Insoluble Fiber: What Each One Actually Does · All fiber guides
Portions
| Portion | Grams | Fiber | kcal |
|---|---|---|---|
| 100 g | 100 | 6 g | 252 |
| 1 slice - this page's serving | 32 | 1.9 g | 81 |
| 1 oz | 28.35 | 1.7 g | 71 |
Gram weights come from the household measures on the USDA record; fiber and energy for each portion are its per-100 g values scaled to that weight.
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Related
Questions
2 g of total dietary fiber, in a portion weighing 32 g. On a US label that reads as 7% of the 28 g Daily Value.
By fiber per serving it is number 113 of 186 in its group in this database, and number 37 of 186 when ranked by fiber per 100 kcal.
2.4 g. USDA lists 6 g of fiber and 252 kcal in 100 g, and dividing one by the other gives the figure, whatever the portion.
About 13 for the 25 g Adequate Intake for women aged 19 to 50, or 19 for the 38 g set for men of those ages.
Per-100 g figures and portion weights on this page come from USDA FoodData Central record 172688 (Bread, whole-wheat, commercially prepared, SR Legacy). For 1 slice that record gives 1.9 g of fiber; the 2 g used on this page is the site's reference figure. USDA nutrient data is public domain.