Corn calories: nutrition, weighed portions and preparation

How many calories does corn contain?

For the numbers in this guide, corn means “Corn, sweet, yellow, raw” (USDA FoodData Central 169998). It contains 86 kcal per 100 g edible portion. The reference is raw yellow sweet corn kernels. The cob is not part of the edible kernel weight. Keeping that definition attached to the number prevents a plain ingredient from being mistaken for a prepared meal.

A weighed 120 g portion provides approximately 103.2 kcal: 120 × 86 ÷ 100. A smaller 60 g portion gives 51.6 kcal, while 180 g gives 154.8 kcal. These are calculated amounts of the named food, not claims about the weight of a standard piece, cup or restaurant serving.

What comes with those calories?

The same 100 g reference provides 3.3 g protein, 18.7 g total carbohydrate, 1.4 g fat and 2 g fiber. For the illustrated 120 g portion, those amounts become 3.9 g protein, 22.4 g carbohydrate, 1.6 g fat and 2.4 g fiber. Calories and individual nutrients describe different parts of the food, so keep all of them on the same portion basis when reading the table.

Yellow sweet corn kernels are the edible reference; the cob is excluded. An ear with butter is therefore a combination of kernels and topping, rather than the weight of the entire ear.

Weighing corn without guessing a serving

Cut off or otherwise estimate the kernels eaten. A buttered ear needs both the corn portion and the butter accounted for. A useful kitchen sequence is to place an empty bowl on the scale, tare it to zero, add the edible corn, and note the grams before combining it with other foods. If you serve only part of that amount, record the part eaten. Leftovers matter because the amount available and the amount consumed are different quantities.

For a corn salad, measure the kernels after removing them from the cob. Canned corn should use its own drained or undrained label basis, depending on the portion eaten.

What changes in a complete dish?

Popcorn, creamed corn and corn chips are not alternative names for raw sweet corn. Their preparation and ingredients differ, so a generic corn search result is insufficient for a useful entry.

Canned, creamed and popped corn describe distinct preparations. Draining liquid can also change the applicable portion basis.

For an explicit ingredient example, 120 g of the named corn plus 5 g olive oil gives approximately 147.4 kcal. The corn contributes 103.2 kcal and the oil contributes 44.2 kcal. This is an illustrative two-ingredient calculation, not a tested recipe or a claim that corn is always served with oil.

How corn compares with prepared edamame

The comparison food is “Edamame, frozen, prepared” (FDC 168411), which contains 121 kcal per 100 g. At equal 120 g weights, the corn reference supplies 103.2 kcal and prepared edamame supplies 145.2 kcal: a difference of 42 kcal. That is a calculation for these records, not a universal ranking of foods or an instruction to exchange equal portions.

Compare the nutrients as well as the energy in the named records below. A food with a different water content, texture or role in the meal may not be a direct substitute. For a real swap, compare the amounts you plan to eat and include the rest of the plate, rather than choosing solely from the lower number in a 100 g table.

Recording the meal in BiteCal

In BiteCal, start with a photo of the corn portion and the rest of the meal. Review the proposed food name, preparation, amount and visible additions before saving the calorie and macro estimate. If you already know the gram weight, use it as a check rather than accepting a visually plausible portion. A photo cannot establish a hidden oil quantity or replace the identity of a packaged product.

The nutrient figures come from USDA SR Legacy, final release April 2018. They provide a reproducible reference for the named food rather than a laboratory result for your own serving. Use the current package or restaurant information when it describes your exact product more closely. Rounding explains small differences between displayed portions; calculations here use the retained unrounded reference values.

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