1. The free sugar in sugary drinks is extremely harmful to the human body. Modern medicine and health organizations of various evidence and investigation more and more clearly shows that free sugar on the human body is very harmful, and even likely fat, cholesterol, protein over the years are free sugar scapegoat. The danger of free sugars to the human body is often overlooked. The so-called free sugars are the sugars that are added to food and beverages, not the sugars that are naturally contained in the food itself. Therefore, the sugar contained in natural fruits is not free sugar, but a healthy and safe food. When the fruit is juiced, the sugar in it becomes free sugar.2. Frequent and large intake of free sugar over a long period of time can damage the pancreas. From the time of the orangutan until the industrial revolution, it was impossible for humans to eat large amounts of free sugar. Humans have been able to eat large amounts of free sugar for the last 100 years or so. So the structure of the human body that has evolved over millions of years is much better suited to digesting cereal meats and fats and simply cannot cope with large amounts of free sugar. And the pancreas is to sugar what the liver is to alcohol. Every time a large amount of free sugar is ingested, the pancreas is put on the spot and secretes large amounts of insulin to aid in digestion. If you consume large amounts of free sugar frequently over a long period of time, your pancreas will lose its response.3. Drinking sugar-sweetened beverages doesn't make you feel full, and it makes you continue to eat more and more food. Most sugary drinks are made with cheaper high fructose syrup instead of fructose. Modern scientific experiments have proved that when the fructose concentration in human cells exceeds the extracellular concentration, the absorption of fructose will stop automatically, and the human body does not have such a defense mechanism against high fructose syrup. Regardless of the body's cellular fructose content concentration, the body will continue to absorb high fructose syrup. This means that you won't feel much satiety after you drink a lot of sugary drinks. You can keep drinking sugary drinks while still eating cookies and cakes in large quantities. And most of the cookies and cakes are over 70% or more free sugars. So the logic here is clear: not only are sugary drinks high in free sugars, but the vast majority of them will also be in the form of the much cheaper and more harmful high fructose syrup. A lot of sugary calories enter the body without a feeling of satiety, and the digestive system is intolerant to sugar. In the long run, various diseases of obesity and visceral intolerance to sugar come into being.