Recently, some kidney patients asked me whether kidney patients can eat seafood, and I can see that they both love and fear seafood. What they love is that seafood is delicious and what they are afraid of is that there is a legend that eating seafood will hurt their kidneys. In fact, many of the concerns of kidney patients are superfluous. Pragmatically speaking, most seafood (fish, shrimp, shellfish) is rich in high quality protein (i.e. protein with high content of essential amino acids), especially high content of unsaturated fatty acids which are beneficial to human body, in addition, vitamins (vitamin A, vitamin D and B vitamins) and trace elements (calcium, magnesium, selenium, iodine, zinc, etc.) are also rich in content, and the content of fat is extremely low, which is suitable for normal consumption by patients with kidney disease. All these are very suitable for normal consumption by patients with kidney disease. However, seafood is high in heterogeneous proteins and purines, which may affect some kidney patients. Generally speaking, the vast majority of patients with kidney disease can consume seafood, such as fishing, shrimp, shellfish, sea cucumber, kelp and other foodstuffs, when the control of kidney disease is basically stabilized. The following patients should pay attention to: those who are allergic to heterogeneous proteins, those who need to strictly control protein intake due to impaired renal function, those who have not yet controlled the condition of massive proteinuria (high protein diet will increase proteinuria and aggravate the load on the kidneys), and those who have combined with gout or have high level of blood uric acid. In addition, patients with kidney disease should pay attention to the way and method of consuming seafood, should not consume seafood in the form of sashimi or hot pot to prevent gastrointestinal infections due to food hygiene problems, and secondly, to grasp the amount of salt in some dried seafood (sea shrimp, sea fish). I hope that my kidney friends should not sacrifice their quality of life because of kidney disease, and they can consume more healthy and beneficial food when their condition is controlled and stabilized. Heart, Liver, Spleen, Lungs and Kidneys, although the kidney ranks last among the five organs, its role is the most important. Kidney is the body’s sewer, the body produces waste (metabolites) must be discharged through the sewer. Once there is a problem in the sewer, the waste can not be discharged, not only will damage the kidneys, the whole system will also collapse. In summer, many people like to eat seafood and drink beer, which is called “the most kidney-damaging way of eating” by nephrologists. Although seafood has a lot of nutritional value, it is better for people with kidney disease to eat less, or try not to eat. Why can’t kidney patients eat seafood? Let’s understand this problem. First of all, patients with renal insufficiency should not eat seafood. Because the ability of patients with renal insufficiency to excrete urea nitrogen, creatinine and other metabolic wastes is impaired, this time to limit the intake of protein. Seafood contains a large number of proteins are mainly collagen, collagen nutritional value is relatively low, the human body poor utilization, will produce more urea nitrogen, creatinine and other metabolites, aggravate the burden on the kidneys, resulting in aggravation of the condition, so into the renal insufficiency stage of nephritis patients try not to eat seafood. In addition, allergic purpura nephritis patients are not recommended to eat seafood. Seafood is heterogeneous protein, especially animal seafood food, often allergic reactions, or activate the immune system of patients with kidney disease, can aggravate the condition. Finally, if chronic nephritis patients are in the treatment and rehabilitation stage, they can consume a small amount of seafood products. Shrimp, crab and other seafood are high-protein food, containing protein mostly animal protein, many seafood have lipid-lowering effect, so it is beneficial to patients with kidney disease who are in the stage of treatment and rehabilitation, but it is best to eat less, so as not to eat too much to aggravate the burden on the kidneys.