”Fatty liver”, or fatty liver disease, refers to the accumulation of excessive fat (mainly triacylglycerols and fatty acids) in the liver cells. When the fat content exceeds 5% of the weight of the liver itself, it will affect the normal digestion and detoxification functions of the liver, and the liver is then called fatty liver. The first thing a fatty liver patient should do is to “keep his mouth shut and his legs open”, which is the basis of treatment. This includes quitting alcohol, controlling weight, exercising properly, and changing poor lifestyles. For example, exercise at least three times a week, with a heart rate of 120 beats per minute or more, for half an hour. Long-term persistence can stop further deterioration of fatty liver and even cure it completely. For people suffering from fatty liver, a healthy diet is very necessary. The basic dietary principles for fatty liver can be summarized as: one moderate, two low and two more, i.e. moderate amount of protein, low sugar and low fat, multivitamin and multi-fiber. Fatty liver patients in the exercise exercise, must comply with the principles of gradual, persistent, pay attention to safety, and do a combination of whole-body exercise and local exercise, so as to achieve the effect of weight loss. Precautions before exercise (1) physical examination before exercise Fatty liver patients should go to the hospital for examination before exercise and exercise to see if there are other complications of fatty liver combined with other complications, with special attention to the cardiovascular system complications. The exercise program and exercise intensity chosen should be different for patients with fatty liver with different physique, degree of morbidity and complications. Medical advice should be followed to determine the amount of exercise, it is best to have a medical card, marked with their name, address, contact number, contact person, disease, etc., will be worn on the body, in the event of an accident can be found and dealt with in a timely manner. (2) Choose the right sports shoes Sports shoes, in addition to good breathability, should also have a certain stretch space, to avoid foot and shoe friction caused by foot skin damage. The sole should have a certain thickness and high elasticity to reduce the impact of the movement on the joints of the lower limbs. (3) before exercise should do preparatory activities Some patients with liver disease do not have the habit of doing preparatory activities when exercising, and think that there is no point in preparing activities, this practice is not desirable. Doing preparatory activities before exercise is the same as giving the body a buffer stage, more conducive to the body to adapt to later exercise, if no preparatory activities before exercise or too little preparatory activities, the body is easy to fatigue, muscles are also easier to strain, easy to cause muscle pain, etc. (4) to avoid the occurrence of hypoglycemia In order to avoid the occurrence of hypoglycemia, it is best to exercise 1 to 3 hours after meals; diabetic patients before exercise to properly adjust the amount of insulin or hypoglycemic drugs. Patients with diabetes are generally not recommended to start exercising in the morning on an empty stomach or immediately after a meal. Fasting exercise is prone to induce hypoglycemia, and type 1 diabetic patients have low fasting insulin levels in the morning. Exercise is often not accompanied by an increase in glucose utilization, but rather a significant increase in liver glycogen output and a rise in blood glucose, which can aggravate the condition and even induce ketosis or ketoacidosis. In addition, physical exercise should not be performed at the moment when insulin is at its strongest, such as 11:00 am. If you participate in physical exercise, you must master the method of temporary meal addition, and also avoid physical activity after insulin injection and before eating.