食品のカロリー
記事の原文は英語です。
Carrot serving sizes: calories by grams and shared portions
BiteCal編集部 · · 読了目安4分
Calculate carrot calories from edible grams × 41 ÷ 100. For example, 100 g provides 41 kcal and 50 g provides 20.5 kcal. A piece or spoonful needs its own weight.
計量した分量を計算
FDC 170393 · 41 kcal / 100 g
食品の参考値を重量に応じて換算します。写真やレシピ全体を測定するものではありません。
Carrot calories for weighed edible portions
| Edible amount | Calculated calories | Protein | Carbohydrate | Fat | Fiber |
|---|---|---|---|---|---|
| 50 g | 20.5 kcal | 0.5 g | 4.8 g | 0.1 g | 1.4 g |
| 100 g | 41 kcal | 0.9 g | 9.6 g | 0.2 g | 2.8 g |
| 150 g | 61.5 kcal | 1.4 g | 14.4 g | 0.4 g | 4.2 g |
| 200 g | 82 kcal | 1.9 g | 19.2 g | 0.5 g | 5.6 g |
Start with the portion that is actually edible
The reference is raw carrot, suitable for plain trimmed sticks or grated carrot weighed before dressing. Glazed carrots, soup and cake contain additional ingredients and should not share one plain-food estimate.
Trim and weigh the edible carrot. Shredded carrot can be weighed directly instead of relying on how tightly a cup is packed. A useful kitchen sequence is to place an empty bowl on the scale, tare it to zero, add the edible carrot, 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.
The gram calculation, step by step
A weighed 100 g portion provides approximately 41 kcal: 100 × 41 ÷ 100. A smaller 50 g portion gives 20.5 kcal, while 150 g gives 61.5 kcal. These are calculated amounts of the named food, not claims about the weight of a standard piece, cup or restaurant serving.
To reverse the calculation for an arithmetic example, 41 kcal of this reference corresponds to 100 g. A number expressed in grams of food is not a number expressed in grams of protein or carbohydrate. Keeping the food weight and nutrient units separate is particularly useful when a tracking screen shows several gram figures together.
Dividing a batch or sharing a plate
Suppose a recipe contains 200 g of the named carrot and you divide that ingredient equally between two plates. Each plate receives 100 g of carrot, or 41 kcal from that ingredient. If one person takes three-fifths of the ingredient instead, their share is 120 g and 49.2 kcal. Equal plate size does not prove equal ingredient distribution, particularly when chunks or toppings are uneven.
Grating changes how tightly carrot packs into a spoon or cup. Weighing the prepared edible carrot avoids turning differences in packing into apparent differences in calorie density.
When cooking changes the weight
Weighing before and after cooking answers different questions. Water can be absorbed, evaporated or drained, changing the final gram weight. If a weighed batch loses water, dividing the same retained ingredient energy by a smaller final weight increases the calculated energy per 100 g. That arithmetic does not mean heat created new calories. It also assumes you accounted for discarded ingredients and that the food reference matches the starting material.
Roasting with oil and glazing with sugar add ingredients. A cooked entry should match the preparation used.
Additions have portions too
If carrot sticks are served with hummus or another dip, record the dip amount eaten. If roasting uses oil, include the portion of oil attributable to the eaten carrots rather than the whole pan automatically.
For an explicit ingredient example, 100 g of the named carrot plus 5 g olive oil gives approximately 85.2 kcal. The carrot contributes 41 kcal and the oil contributes 44.2 kcal. This is an illustrative two-ingredient calculation, not a tested recipe or a claim that carrot is always served with oil.
What your selected portion contains
The same 100 g reference provides 0.9 g protein, 9.6 g total carbohydrate, 0.2 g fat and 2.8 g fiber. For the illustrated 100 g portion, those amounts become 0.9 g protein, 9.6 g carbohydrate, 0.2 g fat and 2.8 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.
Use the table for the named preparation only. If the quantity you have is a packaged serving, check its gram basis before using the calculation. Avoid assigning a household measure an invented weight merely because the food name matches; measuring the edible portion resolves that uncertainty directly.
Review the serving in BiteCal
In BiteCal, start with a photo of the carrot 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.
よくある質問
How do I calculate a different carrot portion?
Multiply edible grams by 41 and divide by 100. A 150 g portion gives 61.5 kcal for the named reference.
What if I eat only part of the serving?
Subtract uneaten edible food from the starting amount. Eating half of a weighed 100 g amount gives an eaten 50 g portion, approximately 20.5 kcal.
Should I weigh carrot before or after preparation?
Trim and weigh the edible carrot. Shredded carrot can be weighed directly instead of relying on how tightly a cup is packed.
Can I use a piece or spoon instead of grams?
Only when you know the edible weight of that particular portion. Grating changes how tightly carrot packs into a spoon or cup. Weighing the prepared edible carrot avoids turning differences in packing into apparent differences in calorie density.
栄養の参考データ
USDA FoodData Central SR Legacy, April 2018. Values refer to 100 g edible portion. Historical reference averages are not current branded-product labels.
- FDC 170393: Carrots, raw — 41 kcal per 100 g
- FDC 170379: Broccoli, raw — 34 kcal per 100 g
- FDC 171413: Oil, olive, salad or cooking — 884 kcal per 100 g
出典
- USDA FoodData Central: Carrots, raw
- USDA FoodData Central: Broccoli, raw
- USDA reference olive oil, FDC 171413
General educational information. Food and photo estimates are approximate; personal nutrition needs may require qualified individual advice.
