Coffee is not recommended for nephritis. Drinking coffee for nephritis patients may aggravate the burden on kidneys and may also aggravate renal anemia. Coffee contains caffeine, which tends to cause excitement after drinking, leading to lack of sleep and physical fatigue, which may easily lead to recurrence of kidney disease. At the same time, coffee can decompose and produce uric acid in the body, which will also increase the burden on the kidneys, thus aggravating the condition of nephritis and affecting the therapeutic effect. Coffee can also inhibit the absorption of iron, which is not conducive to the recovery of renal anemia. Nephritis is one of the most common diseases in nephrology, which requires special attention to dietary factors in addition to the active use of appropriate drugs and symptomatic treatment. Therefore, nephritis is not recommended to drink coffee, if the patient feels uncomfortable to go to the hospital in time to review the consultation.