A one-ounce serving of pumpkin seeds (about a quarter cup) contains roughly 126 to 163 calories, depending on whether you’re eating whole roasted seeds in their shells or shelled kernels known as pepitas. That range matters because the two forms have noticeably different nutritional profiles, and most calorie counts you’ll find online don’t specify which one they’re referring to.
Whole Seeds vs. Pepitas
The white-shelled seeds you scoop out of a pumpkin and the small, flat green kernels sold in bags at the store are nutritionally different. Whole roasted pumpkin seeds with the shell intact come in around 126 calories per ounce. Pepitas, the hull-free inner kernels, pack about 163 calories per ounce because you’re eating pure seed with no low-calorie fiber shell diluting the total. Most snack bags at the grocery store contain pepitas, so 163 calories per ounce is the number that applies to most people.
Macronutrient Breakdown per Ounce
For a one-ounce serving of whole roasted pumpkin seed kernels, the macronutrient split looks like this:
- Fat: 5.5 grams
- Protein: 5.3 grams
- Fiber: 5.2 grams
That’s a surprisingly balanced ratio for a snack food. The protein content rivals what you’d get from a hard-boiled egg, and the fiber is comparable to a small apple. Most of the fat is unsaturated, the kind linked to heart health rather than the saturated fat you’d find in processed snacks. This combination of protein, fat, and fiber is also why pumpkin seeds tend to be more filling than their small serving size suggests. They slow digestion and keep blood sugar steadier than a carb-heavy snack of the same calorie count.
How Pumpkin Seeds Compare to Other Seeds
Pumpkin seeds land right in the middle of the calorie range for popular seeds. Per one-ounce (28-gram) serving:
- Dry roasted sunflower seeds: 165 calories
- Roasted pumpkin seeds (pepitas): 163 calories
- Flax seeds: 152 calories
The differences are minimal. If you’re choosing between seed types for calorie reasons alone, it’s essentially a wash. The more meaningful distinctions are in micronutrients: pumpkin seeds are unusually rich in magnesium and zinc, while flax seeds provide more omega-3 fatty acids. Sunflower seeds are highest in vitamin E. Mixing them gives you the broadest nutritional coverage without any real calorie penalty.
How Preparation Changes the Count
Plain, dry-roasted pumpkin seeds are the baseline. Adding oil during roasting bumps up the fat and calorie content by roughly 10 to 20 calories per serving, depending on how much oil is used. Flavored varieties, like honey roasted or ranch-seasoned, can add both sugar and additional fat, pushing a single ounce past 180 calories in some cases.
If you’re roasting seeds at home from a fresh pumpkin, tossing them with a light coating of olive oil and salt before baking is a common approach. A teaspoon of oil spread across a full baking sheet adds only a few calories per serving. The bigger calorie trap is portion size: pumpkin seeds are easy to eat mindlessly, and three or four handfuls can quickly turn a 160-calorie snack into 500 or more.
How Much to Eat
Dartmouth Health recommends one ounce per day, which is just under a quarter cup, as a practical amount for getting the cardiovascular and nutritional benefits without overloading on calories. That single ounce delivers a meaningful dose of magnesium (about 37% of your daily needs), zinc, and iron alongside those 5-plus grams of protein.
If you’re tracking calories closely, measuring by weight is more accurate than eyeballing a handful. A “handful” varies enormously from person to person, and pumpkin seeds are calorie-dense enough that the difference between one ounce and two ounces, about 160 extra calories, adds up over a week. A small kitchen scale or pre-portioned bags take the guesswork out of it.