- Foods that contain carbohydrates are often plant-based. The photosynthesis process allows plants to store energy as sugar, which is a carbohydrate.
- Fiber is a carbohydrate, but it has no effect on blood sugar levels. Insoluble fiber is not digested by the body.
- A net carb is calculated by subtracting insoluble fiber grams from the total amount of carbohydrate in a food. Some foods, such as flax, are so high in fiber and oil that calculating net carbs makes them a carb-free food.
- Meat from any source contains no carbohydrates at all.
- There are many sweeteners on the market that contain no carbohydrates. Erithrytol, sucralose, and stevia are all carb-free substances.













