Drinking cold water does not normally cause the body to gain weight. Cold water usually refers to cooled boiled water or pure water, which does not contain proteins, fats and sugars and other nutrients that can provide calories for the body, so drinking cold water in moderation will not cause the body to appear overweight or obesity. For weight loss people, it is possible to drink cold water in moderation. In addition, because fat, compared with sugar and protein, contains more calories in the same weight, so it is recommended that the weight-loss population to reduce the intake of walnuts, mutton and other fat-rich foods. It is recommended to do so under the guidance of a dietitian to ensure comprehensive nutritional intake under the premise of scientific and reasonable weight loss, more conducive to the health of the body.