Not without changing the meaning of the filter. A total-carbohydrate control expects the total-carbohydrate figure. A “net carbs” figure uses a different calculation, which may vary with the product’s stated method.
The two numbers answer different questions
Imagine a food showing 30 g total carbohydrate and 6 g fiber. If a stated example method subtracts only fiber, the result is 24 g. Entering 24 into a tool that expects total carbohydrate undercounts its total by 6 g. Calling both entries “carbs” hides the mismatch.
Some products also refer to sugar alcohols or other adjustments. Do not assume a subtraction rule from the front of the package. Read the full panel and the product’s explanation. This guide does not endorse a net-carb definition or claim that subtracting a nutrient predicts an individual response to the food.
Keep a small data dictionary
Record the label name, quantity, serving and method. For a restaurant source, “carbohydrate” should retain the definition used by that source. If fiber is missing, subtracting an assumed amount does not make the missing value known.
Use the supported field
GetMacros’ carbohydrate tool scales total-carbohydrate grams. Its restaurant carbohydrate filter should be interpreted using the recorded source definition, not a homemade net calculation. If you want to track another definition, keep it in a separate note with the calculation stated. FDA’s label guidance supports the relationship of carbohydrate and its indented lines; the numerical example is invented and is not medical advice about blood glucose or carbohydrate management.
Sources and example boundaries
- FDA: using a Nutrition Facts label
Label quantities refer to the stated serving; nutrients are not interchangeable.
All food figures and prices in the worked example are invented to explain the method. They are not restaurant nutrition, tested recipes, shopping prices or personal dietary advice. Use the current label for the product you actually have.