Low-carb diet, refers to a low-carbohydrate diet. Limit daily carbohydrate intake while increasing protein and fat intake. Daily intake of nutrition: 50% to 60% fat, less than 30% carbohydrates and 20% to 30% protein. Low-carbohydrate diet: 1. Reduce the intake of high-carbohydrate staples such as rice, steamed buns, bread, etc., and choose brown rice, corn, purple potatoes, oats, etc. as a substitute. 2. Increase the intake of proteins, vegetables, fruits and fats. 3. Minimize fried, deep-fried and oily foods. Low-carbohydrate diet can effectively reduce body weight and cholesterol level, but it also comes with great risk of diseases as follows. 1. Low-carb intake can cause endocrine disruption in women leading to menstrual disorders. 2. Insufficient glucose supply will lead to hypoglycemia and low brain function. 3. Long-term high saturated fat intake will also induce some cardiovascular diseases and renal insufficiency. 4. Low-carbohydrate diets are prone to elevated ketone bodies, leading to ketosis. Low-carb diets are more popular among dieters, but their safety risks are high and they are best carried out under the guidance of doctors and dietitians.