Can unsalted hard pretzels fit a keto diet?

Usually does not fit

Usually, no: unsalted plain hard pretzels do not fit a keto diet.

1 small single serving bag weighs 28 g; it contains 21.4 g calculated net carbs. Its exact recipe or formulation can differ.

Check another amount

Values update from the same USDA record. They do not estimate a personal carb target or ketosis response.

Amount in grams

Listed source portion: 1 small single serving bag (28 g).

Calculated net carbs

21.4 g

Total carbohydrate

22.2 g

Dietary fiber

0.8 g

Editorial illustration of Pretzels, hard, plain, unsalted.

Nutrition facts for Pretzels, hard, plain, unsalted

Source-portion carb band: Higher net carbs per listed portion. The category is based only on calculated net carbs for the listed portion: 5 g or less, more than 5 g to 10 g, or more than 10 g. Your total intake, preparation, and clinical context can change how a food fits your own plan.

Nutrient	Per listed portion: 1 small single serving bag (28 g)	Per 100 g
Energy	107 kcal	381 kcal
Protein	2.5 g	9.1 g
Total fat	1 g	3.5 g
Saturated fat	0.2 g	0.8 g
Total carbohydrate	22.2 g	79.2 g
Dietary fiber	0.8 g	2.8 g
Calculated net carbs	21.4 g	76.4 g
Total sugars	0.6 g	2.2 g
Sodium	70 mg	250 mg
Potassium	40.9 mg	146 mg

The table keeps the USDA basis separate from the selected portion.

1. Food formPretzels, hard, plain, unsalted
2. USDA per-100 g basis76.4 g calculated net carbs
3. Selected source portion21.4 g calculated net carbs
4. Calculation boundaryPortion value is calculated from the cited 100 g record and portion weight

Explore this food category

Compare this form and portion with other records in snacks & sweets. The category hub explains why forms, preparation, and portions should not be treated as interchangeable.

For meal-level context, use the keto snacks guide.

How the calculation works

Calculated net carbs = total carbohydrate − dietary fiber. For this USDA record, that is 79.2 g − 2.8 g = 76.4 g per 100 g. Net carbs is a planning convention used on this site; it is not a separate USDA nutrient field or a regulatory nutrition-label value. This calculation does not automatically subtract sugar alcohols.

For the underlying approach and its limitations, see how net carbs are explained and the net-carb calculator.

Food record and source

• USDA food description: Pretzels, hard, plain, unsalted
• FoodData Central ID: FDC ID 2708251
• Dataset: Survey (FNDDS) FNDDS 2021-2023 (2024-10-31)
• Record publication date: 10/31/2024
• Selected portion: 1 small single serving bag (28 g)

The nutrition values are reported by the USDA per 100 g. The per-portion column above is calculated from that value and the USDA portion weight; no household measure was invented for this page.

1. USDA FoodData Central, Survey (FNDDS) FNDDS 2021-2023 (2024-10-31), FDC ID 2708251. https://fdc.nal.usda.gov/food-search/?query=2708251, https://fdc.nal.usda.gov/fdc-datasets/FoodData_Central_survey_food_json_2024-10-31.zip

Compare related foods

• Pretzels, hard, plain, lightly salted — Compare another form of hard pretzels.
• Pretzels, hard, plain, salted — Compare another form of hard pretzels.
• Pretzels, hard, plain, gluten free — Compare another form of hard pretzels.

Browse all Food Database entries or start with the keto food list for practical meal-planning context.

Frequently Asked Questions

Can unsalted hard pretzels fit a keto diet?

Unsalted plain hard pretzels usually do not fit a keto diet, with 21.4 g calculated net carbs in the 1 small single serving bag (28 g).

How many net carbs are in Pretzels, hard, plain, unsalted?

The listed 1 small single serving bag (28 g) has 21.4 g calculated net carbs. Per 100 g, the record has 76.4 g calculated net carbs.

How are net carbs calculated for Pretzels, hard, plain, unsalted?

247-Keto calculates net carbs as total carbohydrate minus dietary fiber, capped at zero. For this record, that is 79.2 g total carbohydrate minus 2.8 g fiber per 100 g. Sugar alcohols are not subtracted by this calculation.

Where do these Pretzels, hard, plain, unsalted nutrition facts come from?

The values come from USDA FoodData Central's Survey (FNDDS) FNDDS 2021-2023 (2024-10-31) release, FDC ID 2708251. The page preserves the listed food description and portion weight so the comparison is traceable.

Article history

1. September 11, 2026Updated after final factual and editorial review
2. August 24, 2026First published