净碳水化合物计算器
生酮饮食中真正算数的碳水
拍张照片，AI 自动记录饮食 — 饮食与运动，一个 App 搞定。免费下载 App净碳水化合物计算器
净碳水化合物是身体消化成葡萄糖的碳水化合物，即碳水总量减去膳食纤维和（按常见惯例）一半的糖醇。在生酮和低碳水饮食中，人们追踪净碳水而非碳水总量，因为膳食纤维和大多数糖醇对血糖几乎没有影响。输入营养标签上的数值，即可同时得到标准净碳水和某些国家使用的仅扣除纤维的简化数值。
净碳水化合物用于估算真正会升高血糖的碳水化合物。常见的低碳水算法是从碳水总量中减去全部膳食纤维和一半的糖醇。膳食纤维和大多数糖醇不易被吸收，因此对血糖几乎没有影响。
常见问题
- What are net carbs?
- Net carbs are the carbohydrates your body actually digests and absorbs as glucose. They are calculated by subtracting fiber and sugar alcohols from total carbohydrates, since those components have little effect on blood sugar.
- How do I calculate net carbs?
- Take the total carbohydrate grams from a food label and subtract grams of fiber and sugar alcohols. The result is your net carbs. This calculator does the subtraction for you so you can track the carbs that matter for low-carb diets.
- Why do net carbs matter for keto?
- Keto and low-carb plans limit the carbs that raise blood sugar, and net carbs measure exactly that. Counting net rather than total carbs lets you fit more fibrous vegetables into your day while staying under your carb limit.