Lymphoma patients try to eat as little or no pickles as possible during treatment. On the one hand, because of the high sodium content in pickles, excessive salt intake may lead to increased blood pressure. On the other hand, pickled vegetables belong to pickled food, if improperly pickled or improperly stored, will produce a large amount of nitrite. The main component of nitrite is amine nitrite, which is a grade 1 carcinogen and may lead to disease progression. Lymphoma patients should pay attention to try to choose to eat fresh and light food during the treatment period, it is best not to eat pickled smoked baked food. Eat fish, shrimp, eggs and other foods to supplement high-quality protein; eat fresh fruits and vegetables to supplement vitamins and trace elements. Specific dietary precautions need to carefully ask the doctor, follow the doctor’s instructions.