Straight answers on net carbs in everyday food.

What net carbs mean, and what they do not

Net carbs are usually calculated as total carbohydrate minus dietary fiber, and often minus some sugar alcohols as well. The term has no legal definition in the United States. The FDA regulates the Nutrition Facts panel, which lists total carbohydrate with dietary fiber and total sugars beneath it, while any net carb figure printed elsewhere on a package is the manufacturer's own calculation. Two brands can show different net carbs for a similar product depending on what they choose to subtract.

Why fiber and sugar alcohols need a second look

Fiber is not digested into sugar the way starch is, which is the basis for subtracting it. Sugar alcohols are less consistent. Some, such as erythritol, are commonly treated as having little effect on blood sugar, while others, such as maltitol, can raise it noticeably, so subtracting every sugar alcohol can understate what a food does. When an answer here says check the label, it usually means the net carb figure depends on the ingredients behind it.

Carbohydrates also hide under other names in an ingredient list. Maltodextrin, dextrose, modified starch, honey, syrups and fruit juice concentrate all add carbohydrate, and none of them is obvious from the front of the package.

Keto targets vary from person to person

Clinical descriptions of ketogenic eating generally place very low carbohydrate intake at about 30 grams a day or less, with a broader low carbohydrate range of roughly 30 to 50 grams, and individual tolerance differs. For that reason our answers describe a food by its carbohydrate content per serving and leave the daily target to you and your clinician. A food that fits comfortably in one person's budget may take up most of another's.

Serving size changes the verdict

A food described as keto-friendly can stop being one when the portion grows. Half an avocado and a whole one are different carbohydrate loads, and so are a handful of nuts and a bowl of them. Sauces, dressings, flavored yogurts and processed meats can also pick up added sugars, starches and thickeners, which is why the ingredient list matters as much as the carbohydrate line.

Where the answers come from

Each answer is built from the food's typical nutrition data and ingredient list, and it states what the verdict depends on, such as the serving size, the brand or the presence of added sugar. Because brands differ, the answer points you to the figure you should check on your own package instead of promising one number for every version of a food.

Using these answers

This is general food information, not medical advice. A ketogenic diet changes how the body handles fuel, so people with diabetes, people who are pregnant, people with kidney or liver conditions and anyone taking glucose-lowering medicine should speak with a clinician before starting. Foodsage checks the full ingredient panel for added sugars and flagged additives, and the numbers on the package remain the final reference.