A generic reference for a specific variety
The per-100-g table is a generic raw sweet potato reference. The portion range only scales edible raw weight from 100 to 200 g. Cultivar differences in sugar and water are unquantified here; we do not invent an extra percentage adjustment.
Raw, baked and peeled portions
This page is limited to raw edible weight. Cooking can change water content, so a baked 100 g portion needs a cooked record. Count the part you actually eat; a whole potato’s purchased weight may include discarded pieces.
USDA inputs and portion assumptions
Each row uses the stated edible ingredient grams. Rows below apply to the answer-box serving. Endpoints sum unrounded USDA amounts, then round once. A row with alternative records uses the minimum and maximum for each nutrient independently.
| Ingredient, grams and USDA source | Calories (kcal) | Protein (g) | Carbohydrate (g) | Fat (g) | Sodium (mg) |
|---|---|---|---|---|---|
| Sweet potato, raw, unprepared (Includes foods for USDA's Food Distribution Program)100–200 g edible inputSweet potato, raw, unprepared (Includes foods for USDA's Food Distribution Program) · FDC 168482 | 86–172 kcal | 1.6–3.1 g | 20.1–40.2 g | 0.1 g | 55–110 mg |
Estimated nutrient ranges
- Calories
- 86–172 kcal
- Protein
- 1.6–3.1 g
- Carbohydrate
- 20.1–40.2 g
- Fat
- 0.1 g
- Sodium
- 55–110 mg
Formula for every ingredient and nutrient: USDA per-100-g amount × edible grams ÷ 100. Add first, then round with decimal half-up: whole kcal; at most one decimal for g and mg, with trailing zeroes removed. Small displayed amounts may round to zero.
Separate USDA references per 100 g
Keep each preparation state and lean/fat ratio separate. These reference rows are alternatives, not ingredients to add together.
| Record and preparation | Calories (kcal) | Protein (g) | Carbohydrate (g) | Fat (g) | Sodium (mg) |
|---|---|---|---|---|---|
| Sweet potato, raw, unprepared (Includes foods for USDA's Food Distribution Program) · FDC 168482 | 86 kcal | 1.6 g | 20.1 g | 0.1 g | 55 mg |
Common questions
What is the nutrition of a raw Japanese sweet potato?
86–172 kcal per assumed 100–200 g edible raw portion. USDA generic raw sweet potato is our closest available proxy. FDC 168482 is not a laboratory measurement of a Japanese purple-skinned, yellow-fleshed cultivar.
Is this official nutrition data for the finished food?
No. USDA supplies generic ingredient records. The finished-food range is our estimate under the stated portions and recipe assumptions, not a brand or restaurant label. Actual food can fall outside it.
How do I adjust the serving?
Use each matching USDA record’s per-100-g amount × edible grams ÷ 100, then add the ingredients before rounding. Keep raw and cooked weights matched to their respective records; extra sauces and oils need separate entries.
📚 Sources and limits
- USDA FoodData Central SR Legacy, April 2018 — full-precision records in the component and reference tables. Each source links its FDC ID. All quantities are our scenario assumptions; no third-party calorie totals are used.