Inside 1000CalBar
How could a bar reach 1,000 calories?
The short answer: using standard rounded energy factors, 100g of protein supplies about 400 kcal. A bar targeting 1,000 kcal would need about 600 kcal from other ingredients. For 1000CalBar, the remaining energy would principally come from carbohydrate and fat. This calculation explains our pre-launch targets; it is not the final nutrition label.
The calorie calculation
The USDA Food and Nutrition Information Center gives rounded energy factors of 4 kcal per gram for protein, 4 for carbohydrate and 9 for fat. In this article, “calorie” means the food-label kilocalorie (kcal).
| Nutrient | Energy per gram |
|---|---|
| Protein | 4 kcal |
| Carbohydrate | 4 kcal |
| Fat | 9 kcal |
The protein target therefore accounts for 100 × 4 = 400 kcal, or 40% of the 1,000 kcal target. That leaves 600 kcal to account for. These general factors are useful for explaining the numbers; they are not a substitute for determining a finished product’s nutrition.
An illustrative example, not our recipe
For arithmetic only: 100g protein, 60g carbohydrate and 40g fat give 400 + 240 + 360 = 1,000 kcal using those factors. This is the illustrative energy budget for our up-to-100g protein target, not a production recipe. The 33g and 66g options have different carbohydrate and fat targets. They do not describe its ingredients, serving weight, sugar content or final nutrition panel.
Why four portions?
The bar is designed to divide into quarters. For the up-to-100g formulation, if a finished bar met both targets and divided evenly, each quarter would contain 250 kcal and 25g protein. Actual portion weights and nutrition still need to be established.
What remains unknown?
The recipe, ingredient list, allergens, finished weight, texture, storage instructions and verified nutrition values are not final. We’ll publish the final product information before ordering opens, so you can make an informed choice.
For the current status, see nutrition targets and ingredients. To explore the four-portion format, see the bar.
Source and scope
USDA National Agricultural Library — Food and Nutrition Information Center, question: “How many calories are in one gram of fat, carbohydrate, or protein?” The numerical example and portion calculations above are our arithmetic using those factors. The source does not evaluate or endorse 1000CalBar.