Food · Baked Products
Boston brown bread nutrition facts
A typical portion of boston brown bread (1 slice; 45 g, boston Brown) has 120 calories and 5g of protein (USDA FoodData Central). USDA lists 2 descriptions of it: per 100 g they range from 195 calories (canned) to 274 (boston Brown).
Nutrition Facts
* The % Daily Value (DV) tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice. Protein % DV here is not corrected for protein quality.
USDA values per 100 g for Bread, Boston Brown, scaled to the portion. Check the USDA record.
- Protein per 100 g
- 10.7g
- more than 54% of 8,218 USDA reference foods
- Calories per 100 g
- 274
- more than 69% of reference foods
- Sodium per 100 g
- 450mg
- more than 81% of reference foods
1 slice weighs 45 g in USDA's record for Bread, Boston Brown (FDC 2707847).
Where the calories come from: 70% carbohydrate, 15% fat and 16% protein (4 calories a gram of protein or carbohydrate, 9 of fat).
Also rich in
Source: USDA FoodData Central (FDC 2707847), every nutrient the record reports; FDA Daily Values, 21 CFR 101.9.
Every form of boston brown bread USDA describes
Boston Brown has the most calories per 100 g (274); the fewest: Canned (195)
| USDA description | Calories | Protein | Fat | Sodium |
|---|---|---|---|---|
| Bread, Boston Brown | 274 | 10.7 g | 4.5 g | 450 mg |
| Bread, boston brown, canned | 195 | 5.2 g | 1.5 g | 631 mg |
Every nutrient in this record (65)
The portion is 1 slice (45 g); % DV is for that portion.
Energy, macronutrients and sugars (12)
| Nutrient | Per portion | Per 100 g | % DV |
|---|---|---|---|
| Protein | 4.80 g | 10.7 g | 10% |
| Total lipid (fat) | 2.04 g | 4.53 g | 3% |
| Carbohydrate, by difference | 21.4 g | 47.5 g | 8% |
| Energy | 123 kcal | 274 kcal | |
| Alcohol, ethyl | 0 g | 0 g | |
| Water | 15.9 g | 35.3 g | |
| Total Sugars | 2.58 g | 5.73 g | |
| Fiber, total dietary | 1.80 g | 4.00 g | 6% |
| Cholesterol | 0 mg | 0 mg | 0% |
| Fatty acids, total saturated | 0.31 g | 0.70 g | 2% |
| Fatty acids, total monounsaturated | 0.28 g | 0.61 g | |
| Fatty acids, total polyunsaturated | 0.73 g | 1.61 g |
Minerals (9)
| Nutrient | Per portion | Per 100 g | % DV |
|---|---|---|---|
| Calcium, Ca | 56.3 mg | 125 mg | 4% |
| Iron, Fe | 1.62 mg | 3.60 mg | 9% |
| Magnesium, Mg | 18.4 mg | 41.0 mg | 4% |
| Phosphorus, P | 58.0 mg | 129 mg | 5% |
| Potassium, K | 63.5 mg | 141 mg | 1% |
| Sodium, Na | 203 mg | 450 mg | 9% |
| Zinc, Zn | 0.47 mg | 1.04 mg | 4% |
| Copper, Cu | 0.067 mg | 0.15 mg | 7% |
| Selenium, Se | 13.0 µg | 28.8 µg | 24% |
Vitamins (23)
| Nutrient | Per portion | Per 100 g | % DV |
|---|---|---|---|
| Retinol | 0 µg | 0 µg | |
| Vitamin A, RAE | 0 µg | 0 µg | 0% |
| Carotene, beta | 0.45 µg | 1.00 µg | |
| Carotene, alpha | 0 µg | 0 µg | |
| Vitamin E (alpha-tocopherol) | 0.086 mg | 0.19 mg | 1% |
| Vitamin D (D2 + D3) | 0 µg | 0 µg | 0% |
| Cryptoxanthin, beta | 0 µg | 0 µg | |
| Lycopene | 0 µg | 0 µg | |
| Lutein + zeaxanthin | 19.8 µg | 44.0 µg | |
| Vitamin C, total ascorbic acid | 0.090 mg | 0.20 mg | 0% |
| Thiamin | 0.18 mg | 0.41 mg | 15% |
| Riboflavin | 0.11 mg | 0.25 mg | 9% |
| Niacin | 2.52 mg | 5.59 mg | 16% |
| Vitamin B-6 | 0.050 mg | 0.11 mg | 3% |
| Folate, total | 38.3 µg | 85.0 µg | |
| Vitamin B-12 | 0 µg | 0 µg | 0% |
| Choline, total | 8.41 mg | 18.7 mg | 2% |
| Vitamin K (phylloquinone) | 2.21 µg | 4.90 µg | 2% |
| Folic acid | 9.00 µg | 20.0 µg | |
| Folate, food | 29.3 µg | 65.0 µg | |
| Folate, DFE | 44.5 µg | 99.0 µg | 11% |
| Vitamin E, added | 0 mg | 0 mg | |
| Vitamin B-12, added | 0 µg | 0 µg |
Fatty acids (19)
| Nutrient | Per portion | Per 100 g | % DV |
|---|---|---|---|
| SFA 4:0 | 0 g | 0 g | |
| SFA 6:0 | 0 g | 0 g | |
| SFA 8:0 | 0 g | 0 g | |
| SFA 10:0 | 0.00045 g | 0.0010 g | |
| SFA 12:0 | 0.0036 g | 0.0080 g | |
| SFA 14:0 | 0.0032 g | 0.0070 g | |
| SFA 16:0 | 0.20 g | 0.44 g | |
| SFA 18:0 | 0.096 g | 0.21 g | |
| MUFA 18:1 | 0.26 g | 0.58 g | |
| PUFA 18:2 | 0.65 g | 1.45 g | |
| PUFA 18:3 | 0.072 g | 0.16 g | |
| PUFA 20:4 | 0 g | 0 g | |
| PUFA 22:6 n-3 (DHA) | 0 g | 0 g | |
| MUFA 16:1 | 0.0086 g | 0.019 g | |
| PUFA 18:4 | 0 g | 0 g | |
| MUFA 20:1 | 0.0063 g | 0.014 g | |
| PUFA 20:5 n-3 (EPA) | 0.0018 g | 0.0040 g | |
| MUFA 22:1 | 0 g | 0 g | |
| PUFA 22:5 n-3 (DPA) | 0 g | 0 g |
Source: USDA FoodData Central, FDC 2707847: every value the record reports, per 100 g as USDA gives it and scaled to the portion; Daily Values: 21 CFR 101.9.
Source: USDA FoodData Central (SR Legacy, Foundation Foods and Survey foods), April 30, 2026 release.
Questions
How many calories are in boston brown bread?
120 in 1 slice (45 g) of boston Brown; 195 to 274 per 100 g across USDA's descriptions.
How much protein is in boston brown bread?
5g in 1 slice; 10.7 g per 100 g.
How much sodium is in boston brown bread?
200mg in 1 slice; 450 mg per 100 g. Salt added in cooking changes it: USDA lists salted and unsalted forms separately where it measured both.
Sources for this page
- USDA FoodData Central
- the food and product records, April 30, 2026 release. fdc.nal.usda.gov
- FoodData Central documentation
- what each data type is and how branded records are submitted. fdc.nal.usda.gov
- USDA Food and Nutrient Database for Dietary Studies
- the survey foods and their portions. ars.usda.gov
- 21 CFR 101.9, Nutrition labeling of food
- the label format, rounding and Daily Values. ecfr.gov
- FDA, How to Understand and Use the Nutrition Facts Label
- the 5% and 20% Daily Value rule. fda.gov