A low-carb diet limits carbohydrates, such as grains, rice, and starchy vegetables, to 10-30% of total calorie consumption, possibly resulting in weight loss. The keto diet, on the other hand, limits carbohydrates to 5-10% of your daily calories. This induces nutritional ketosis in your body, promoting the use of fat as a primary fuel source. While both diets cut carbohydrates to varying extents, the keto diet is more restrictive. For the majority, the low-carb diet is considered more sustainable in the long run.