A low-carb diet limits carbohydrates — such as those found in grains, starchy vegetables and fruit — and emphasizes foods high in protein and fat. Many types of low-carb diets exist. Each diet has varying restrictions on the types and amounts of carbohydrates you can eat.
Purpose
A low-carb diet is generally used for weight loss. Some low-carb diets may have health benefits beyond weight loss, such as reducing your risk of type 2 diabetes and metabolic syndrome. Why you might follow a low-carb diet You might choose to follow a low-carb diet because you: Want a diet that restricts certain carbs to help you lose weight Want to change your overall eating habits Enjoy the types and amounts of foods featured in low-carb diets Check with your doctor before starting any weight-loss diet, especially if you have any health conditions, such as diabetes or heart disease."