How much protein and fiber are in one slice of whole-wheat bread?

Whole-wheat bread, 1 slice (32 g), contains about 4 g of protein, 1.9 g of fiber and 81 kcal, according to USDA FoodData Central.

At a glance

Protein
4 g
Fiber
1.9 g
Calories
81 kcal
Protein per 100 kcal
4.9 g

Portions from USDA FoodData Central

USDA FoodData Central values for Whole-wheat bread. Chosen serving: 1 slice (32 g).
Portion Grams Calories Protein Fiber Carbohydrate Fat
Chosen serving: 1 slice 32 g 81 kcal 4 g 1.9 g 13.7 g 1.1 g
Per 100 g 100 g 252 kcal 12.4 g 6 g 42.7 g 3.5 g
1 oz 28.4 g 71.4 kcal 3.5 g 1.7 g 12.1 g 1 g

A familiar serving, made clear

Bread is easy to count by the slice, so two slices of toast are simple to log.

Where these numbers come from

USDA description: Bread, whole-wheat, commercially prepared. FDC ID: 172688. Dataset: USDA FoodData Central, SR Legacy, April 2018 release, published 2019-04-01. Food record published 4/1/2019; dataset retrieved 20 September 2026.

Use these values to orient your meal, then make the journal match what was on your plate.

Related references

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Written by
Dr. Loredana Gavrilovici, Founder of Food & Fit
Published

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