Raw pumpkin is remarkably low in calories: just 30 calories per cup of cubed pumpkin (116g). That makes it one of the lightest vegetables you can eat, though the calorie count shifts depending on whether you’re eating it fresh, canned, roasted, or in seed form.
Fresh Pumpkin Calories
A one-cup serving of raw, cubed pumpkin contains about 30 calories, 8 grams of carbohydrates, and 1 gram of fiber. Boiling changes the picture slightly. One cup of mashed, boiled pumpkin (245g) comes to 49 calories and 12 grams of carbohydrates. The higher numbers reflect the larger serving size once pumpkin is cooked and mashed into a denser portion, not a change in the pumpkin itself.
Pumpkin has a high glycemic index of 75, which might sound concerning if you’re watching blood sugar. But the glycemic load, which accounts for how much carbohydrate you’re actually eating in a real serving, is only 8. That’s considered low. The high water content means you’d need to eat a lot of pumpkin to get a meaningful blood sugar spike.
Canned Pumpkin Puree
Pure canned pumpkin (100% pumpkin, no added ingredients) has 83 calories per cup (245g), along with 19.8 grams of carbohydrates and 7.1 grams of fiber. The fiber count jumps significantly compared to fresh pumpkin because the canning process concentrates the flesh, removing much of the water.
Canned pumpkin pie mix is a completely different product. A cup of pumpkin pie mix runs about 281 calories, more than three times the plain puree. The difference comes from added sugar and spices. If you’re buying canned pumpkin for cooking or smoothies, check the label. The can should list only pumpkin as the ingredient.
Pumpkin Seeds Pack More Energy
Pumpkin seeds (pepitas) are nutritionally nothing like the flesh. A single ounce of dried, hulled pumpkin seeds contains about 153 calories, 13 grams of fat, and 7 grams of protein. They’re calorie-dense in the way all nuts and seeds are, so a small handful adds up quickly. That said, the protein and healthy fat content makes them more filling than their size suggests.
How Pumpkin Compares to Similar Vegetables
Pumpkin is significantly lower in calories than its close relatives. Here’s how one cup of cooked servings stacks up:
- Pumpkin (boiled, mashed): 49 calories, 12g carbs
- Butternut squash (baked, cubed): 82 calories, 21.5g carbs
- Sweet potato (baked): 180 calories, 41.4g carbs
Pumpkin has roughly 60% fewer calories than butternut squash and about 73% fewer than sweet potato. If you’re substituting pumpkin into soups, casseroles, or mashes where you’d normally use sweet potato, the calorie savings are substantial without losing much in terms of flavor or texture.
Nutrients Beyond Calories
Pumpkin’s real nutritional selling point is vitamin A. One cup of pumpkin delivers 245% of the recommended daily intake, thanks to the beta-carotene that gives it that deep orange color. Your body converts beta-carotene into vitamin A, which supports vision, immune function, and skin health. Pumpkin also provides 564 milligrams of potassium per cup, putting it in the same range as a medium banana.
The combination of very low calories, high water content, solid fiber (especially in the canned form), and dense micronutrients is what makes pumpkin unusually nutrient-efficient. You get a lot of nutrition for very little caloric cost, which is why it shows up so often in weight management meal plans and high-volume eating strategies.