Patients with nephritis can eat red dates. Patients with nephritis should have a low-salt, low-fat, high-quality, low-protein diet. Low salt means avoiding pickled foods and salty tasting foods; low fat means avoiding cholesterol and fat rich foods; high quality protein means high bioeffective protein, mainly animal protein, such as fish, meat, egg whites, avoiding vegetable protein rich food intake, because the amount of essential amino acids containing it is less, metabolic waste more, increasing the burden on the kidneys. Dates contain low protein and fat content, so patients with nephritis are allowed to eat red dates. However, if a patient with nephritis has combined diabetes, or is taking a lot of oral hormones, which can lead to steroidal diabetes, the high sugar content of red dates can raise blood sugar, and this time patients with nephritis should not eat red dates. If a patient with nephritis has chronic kidney failure, when the glomerular filtration rate is <30mL/min, the kidney's ability to excrete potassium decreases. Because red dates are rich in potassium, eating too many of them can lead to hyperkalemia, causing cardiac arrest and arrhythmia, so eating red dates with hyperkalemia is not recommended.