Can corn fit a keto diet?

Usually does not fit

Usually, no: raw corn does not fit a keto diet.

1 cup (150 g) provides 25.1 g calculated net carbs. The documented composition basis is 100 g Corn, sweet, yellow, raw.

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 cup (150 g).

Calculated net carbs

25.1 g

Total carbohydrate

28 g

Dietary fiber

3 g

Editorial illustration of Corn, raw.

Nutrition facts for Corn, raw

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 cup (150 g)	Per 100 g
Energy	129 kcal	86 kcal
Protein	4.9 g	3.3 g
Total fat	2 g	1.4 g
Saturated fat	0.5 g	0.3 g
Total carbohydrate	28.1 g	18.7 g
Dietary fiber	3 g	2 g
Calculated net carbs	25.1 g	16.7 g
Total sugars	9.4 g	6.3 g
Sodium	22.5 mg	15 mg
Potassium	405 mg	270 mg

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

1. Food formCorn, raw
2. USDA per-100 g basis16.7 g calculated net carbs
3. Selected source portion25.1 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 keto vegetables. The category hub explains why forms, preparation, and portions should not be treated as interchangeable.

For meal-level context, use the keto food list.

How the calculation works

Calculated net carbs = total carbohydrate − dietary fiber. For this USDA record, that is 18.7 g − 2 g = 16.7 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: Corn, raw
• FoodData Central ID: FDC ID 2709783
• Dataset: Survey (FNDDS) FNDDS 2021-2023 (2024-10-31)
• Record publication date: 10/31/2024
• Selected portion: 1 cup (150 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 2709783. https://fdc.nal.usda.gov/food-search/?query=2709783, https://fdc.nal.usda.gov/fdc-datasets/FoodData_Central_survey_food_json_2024-10-31.zip

Compare related foods

• Corn, fresh, cooked, no added fat — Compare another form of corn.
• Corn, frozen, cooked, no added fat — Compare another form of corn.
• Corn, canned, cooked, no added fat — Compare another form of corn.

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

Frequently Asked Questions

Can corn fit a keto diet?

Raw corn usually does not fit a keto diet; 1 cup (150 g) has 25.1 g calculated net carbs.

How many net carbs are in Corn, raw?

The listed 1 cup (150 g) has 25.1 g calculated net carbs. Per 100 g, the record has 16.7 g calculated net carbs.

How are net carbs calculated for Corn, raw?

247-Keto calculates net carbs as total carbohydrate minus dietary fiber, capped at zero. For this record, that is 18.7 g total carbohydrate minus 2 g fiber per 100 g. Sugar alcohols are not subtracted by this calculation.

Where do these Corn, raw nutrition facts come from?

The values come from USDA FoodData Central's Survey (FNDDS) FNDDS 2021-2023 (2024-10-31) release, FDC ID 2709783. 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